[{"title":"Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings","doi":"10.1007/s11044-026-10146-9","date_updated":"2026-03-03T06:31:03Z","date_created":"2026-01-27T15:51:55Z","author":[{"orcid":"0009-0009-9767-7168","last_name":"Wohlleben","full_name":"Wohlleben, Meike Claudia","id":"43991","first_name":"Meike Claudia"},{"first_name":"Jan","orcid":"0000-0001-9025-9742","last_name":"Schütte","full_name":"Schütte, Jan","id":"22109"},{"full_name":"Berkemeier, Manuel Bastian","last_name":"Berkemeier","first_name":"Manuel Bastian"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"},{"last_name":"Peitz","full_name":"Peitz, Sebastian","first_name":"Sebastian"}],"year":"2026","page":"1–21","citation":{"ieee":"M. C. Wohlleben, J. Schütte, M. B. Berkemeier, W. Sextro, and S. Peitz, “Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings,” <i>Multibody System Dynamics</i>, pp. 1–21, 2026, doi: <a href=\"https://doi.org/10.1007/s11044-026-10146-9\">10.1007/s11044-026-10146-9</a>.","chicago":"Wohlleben, Meike Claudia, Jan Schütte, Manuel Bastian Berkemeier, Walter Sextro, and Sebastian Peitz. “Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings.” <i>Multibody System Dynamics</i>, 2026, 1–21. <a href=\"https://doi.org/10.1007/s11044-026-10146-9\">https://doi.org/10.1007/s11044-026-10146-9</a>.","short":"M.C. Wohlleben, J. Schütte, M.B. Berkemeier, W. Sextro, S. Peitz, Multibody System Dynamics (2026) 1–21.","bibtex":"@article{Wohlleben_Schütte_Berkemeier_Sextro_Peitz_2026, title={Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings}, DOI={<a href=\"https://doi.org/10.1007/s11044-026-10146-9\">10.1007/s11044-026-10146-9</a>}, journal={Multibody System Dynamics}, author={Wohlleben, Meike Claudia and Schütte, Jan and Berkemeier, Manuel Bastian and Sextro, Walter and Peitz, Sebastian}, year={2026}, pages={1–21} }","mla":"Wohlleben, Meike Claudia, et al. “Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings.” <i>Multibody System Dynamics</i>, 2026, pp. 1–21, doi:<a href=\"https://doi.org/10.1007/s11044-026-10146-9\">10.1007/s11044-026-10146-9</a>.","ama":"Wohlleben MC, Schütte J, Berkemeier MB, Sextro W, Peitz S. Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings. <i>Multibody System Dynamics</i>. Published online 2026:1–21. doi:<a href=\"https://doi.org/10.1007/s11044-026-10146-9\">10.1007/s11044-026-10146-9</a>","apa":"Wohlleben, M. C., Schütte, J., Berkemeier, M. B., Sextro, W., &#38; Peitz, S. (2026). Evaluating Physics-Based, Hybrid, and Data-Driven Models for Rubber-Metal Bushings. <i>Multibody System Dynamics</i>, 1–21. <a href=\"https://doi.org/10.1007/s11044-026-10146-9\">https://doi.org/10.1007/s11044-026-10146-9</a>"},"publication_identifier":{"issn":["1384-5640"]},"quality_controlled":"1","language":[{"iso":"eng"}],"_id":"63765","department":[{"_id":"151"}],"user_id":"43991","abstract":[{"lang":"eng","text":"Rubber-metal bushings (RMB) are critical components in multi-body systems, such as vehicles and industrial machinery, due to their ability to enable relative motion, dampen vibrations, and transmit forces. However, their nonlinear behavior challenges accurate modeling. Traditional physics-based models often fail to balance simplicity, accuracy, and computational efficiency. The growing availability of experimental data offers opportunities to improve RMB modeling through hybrid and data-driven approaches. This study evaluates physics-based, hybrid, and data-driven methods based on predictive accuracy, modeling effort, and computational cost. Hybrid approaches, combining machine learning techniques with physics-based models, are investigated to leverage their complementary strengths. Results show that hybrid methods enhance accuracy for simpler models with a modest increase in computational time. This highlights their potential to simplify RMB modeling while balancing accuracy and efficiency, offering insights for advancing multi-body system simulations. Building on these insights, data-driven methods are explored for their ability to provide surrogate models for dynamical systems without requiring expert knowledge. Experiments reveal that while simple data-driven methods approximate system behavior when data has low variance, they fail with trajectories of widely varying frequency and amplitude."}],"status":"public","publication":"Multibody System Dynamics","type":"journal_article"},{"place":"Hamburg","page":"206 – 208","citation":{"short":"M. Kelber, S. Brück, N. Bhardwaj, O.K. Aimiyekagbon, R. Naumann, W. Sextro, in: Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau (Ed.), Tagungsband Rad-Schiene-Tagung 2026, DVV Media Group GmbH - Eurailpress, Hamburg, 2026, pp. 206 – 208.","bibtex":"@inproceedings{Kelber_Brück_Bhardwaj_Aimiyekagbon_Naumann_Sextro_2026, place={Hamburg}, title={Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle}, booktitle={Tagungsband Rad-Schiene-Tagung 2026}, publisher={DVV Media Group GmbH - Eurailpress}, author={Kelber, Max and Brück, Steffen and Bhardwaj, Nishant and Aimiyekagbon, Osarenren Kennedy and Naumann, Rolf and Sextro, Walter}, editor={Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau}, year={2026}, pages={206 – 208} }","mla":"Kelber, Max, et al. “Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle.” <i>Tagungsband Rad-Schiene-Tagung 2026</i>, edited by Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau, DVV Media Group GmbH - Eurailpress, 2026, pp. 206 – 208.","apa":"Kelber, M., Brück, S., Bhardwaj, N., Aimiyekagbon, O. K., Naumann, R., &#38; Sextro, W. (2026). Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle. In Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau (Ed.), <i>Tagungsband Rad-Schiene-Tagung 2026</i> (pp. 206 – 208). DVV Media Group GmbH - Eurailpress.","ama":"Kelber M, Brück S, Bhardwaj N, Aimiyekagbon OK, Naumann R, Sextro W. Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle. In: Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau, ed. <i>Tagungsband Rad-Schiene-Tagung 2026</i>. DVV Media Group GmbH - Eurailpress; 2026:206 – 208.","chicago":"Kelber, Max, Steffen Brück, Nishant Bhardwaj, Osarenren Kennedy Aimiyekagbon, Rolf Naumann, and Walter Sextro. “Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle.” In <i>Tagungsband Rad-Schiene-Tagung 2026</i>, edited by Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau, 206 – 208. Hamburg: DVV Media Group GmbH - Eurailpress, 2026.","ieee":"M. Kelber, S. Brück, N. Bhardwaj, O. K. Aimiyekagbon, R. Naumann, and W. Sextro, “Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle,” in <i>Tagungsband Rad-Schiene-Tagung 2026</i>, Dresden, 2026, pp. 206 – 208."},"publication_identifier":{"isbn":["978-3-96892-332-1"]},"publication_status":"published","conference":{"end_date":"2026-03-06","location":"Dresden","name":"21. Internationale Schienenfahrzeugtagung Dresden 4.-6. März 2026","start_date":"2026-03-04"},"date_updated":"2026-03-04T10:38:28Z","author":[{"first_name":"Max","last_name":"Kelber","id":"70188","full_name":"Kelber, Max"},{"last_name":"Brück","full_name":"Brück, Steffen","first_name":"Steffen"},{"first_name":"Nishant","last_name":"Bhardwaj","full_name":"Bhardwaj, Nishant"},{"first_name":"Osarenren Kennedy","last_name":"Aimiyekagbon","full_name":"Aimiyekagbon, Osarenren Kennedy","id":"9557"},{"full_name":"Naumann, Rolf","last_name":"Naumann","first_name":"Rolf"},{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"}],"status":"public","popular_science":"1","type":"conference","_id":"64826","project":[{"name":"enableATO – Automatisierter Bahnverkehr als Backbone für eine nachhaltige, vernetzte Mobilität im ländlichen Raum","_id":"1355"}],"department":[{"_id":"151"}],"user_id":"70188","year":"2026","corporate_editor":["Hochschule für Technik und Wirtschaft Dresden, Fakultät Maschinenbau"],"title":"Methodik zur Untersuchung der Fahrwerksparameter von Schienenfahrzeugen auf Basis optischer Schwingungsmessungen an einer ortsfesten Messstelle","publisher":"DVV Media Group GmbH - Eurailpress","date_created":"2026-03-04T10:26:27Z","publication":"Tagungsband Rad-Schiene-Tagung 2026","language":[{"iso":"ger"}]},{"type":"conference","publication":"PHM Society Asia-Pacific Conference","abstract":[{"lang":"eng","text":"This study proposes a fault diagnostics methodology that addresses the challenges posed by highly imbalanced datasets typical of railway applications, where faulty conditions constitute the minority class. Fault diagnostics is performed from the component level upward, considering each sensor’s proximity to its respective critical component. Advanced signal analysis, feature engineering, and automated data-driven model generation techniques were explored to achieve comprehensive diagnostics, such that the model development process accounts for variations in the operating conditions and differing levels of information availability. The proposed methodology is evaluated on datasets from the MONOCAB, for scenarios with limited faulty instances and on the Beijing 2024 IEEE PHM Conference data challenge, which focused on fault diagnostics of railway systems under various fault modes and operating conditions."}],"status":"public","project":[{"name":"enableATO – Automatisierter Bahnverkehr als Backbone für eine nachhaltige, vernetzte Mobilität im ländlichen Raum","_id":"1355"}],"_id":"64787","user_id":"9557","department":[{"_id":"151"}],"article_number":"1","keyword":["MONOCAB","Beijing Data Challenge","Diagnostics of railway systems"],"language":[{"iso":"eng"}],"publication_status":"published","quality_controlled":"1","year":"2025","citation":{"ieee":"O. K. Aimiyekagbon, A. Löwen, R. Hanselle, T. Rief, M. Beck, and W. Sextro, “Multilevel fault diagnostics for railway applications using limited historical data,” in <i>PHM Society Asia-Pacific Conference</i>, 2025, vol. 5, doi: <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>.","chicago":"Aimiyekagbon, Osarenren Kennedy, Alexander Löwen, Raphael Hanselle, Thomas Rief, Maximilian Beck, and Walter Sextro. “Multilevel Fault Diagnostics for Railway Applications Using Limited Historical Data.” In <i>PHM Society Asia-Pacific Conference</i>, Vol. 5, 2025. <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">https://doi.org/10.36001/phmap.2025.v5i1.4449</a>.","ama":"Aimiyekagbon OK, Löwen A, Hanselle R, Rief T, Beck M, Sextro W. Multilevel fault diagnostics for railway applications using limited historical data. In: <i>PHM Society Asia-Pacific Conference</i>. Vol 5. ; 2025. doi:<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>","apa":"Aimiyekagbon, O. K., Löwen, A., Hanselle, R., Rief, T., Beck, M., &#38; Sextro, W. (2025). Multilevel fault diagnostics for railway applications using limited historical data. <i>PHM Society Asia-Pacific Conference</i>, <i>5</i>, Article 1. <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">https://doi.org/10.36001/phmap.2025.v5i1.4449</a>","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Multilevel Fault Diagnostics for Railway Applications Using Limited Historical Data.” <i>PHM Society Asia-Pacific Conference</i>, vol. 5, 1, 2025, doi:<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>.","short":"O.K. Aimiyekagbon, A. Löwen, R. Hanselle, T. Rief, M. Beck, W. Sextro, in: PHM Society Asia-Pacific Conference, 2025.","bibtex":"@inproceedings{Aimiyekagbon_Löwen_Hanselle_Rief_Beck_Sextro_2025, title={Multilevel fault diagnostics for railway applications using limited historical data}, volume={5}, DOI={<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>}, number={1}, booktitle={PHM Society Asia-Pacific Conference}, author={Aimiyekagbon, Osarenren Kennedy and Löwen, Alexander and Hanselle, Raphael and Rief, Thomas and Beck, Maximilian and Sextro, Walter}, year={2025} }"},"intvolume":"         5","date_updated":"2026-02-27T20:46:44Z","author":[{"first_name":"Osarenren Kennedy","id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon"},{"last_name":"Löwen","id":"47233","full_name":"Löwen, Alexander","first_name":"Alexander"},{"first_name":"Raphael","full_name":"Hanselle, Raphael","last_name":"Hanselle"},{"first_name":"Thomas","last_name":"Rief","full_name":"Rief, Thomas"},{"first_name":"Maximilian","last_name":"Beck","full_name":"Beck, Maximilian"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"}],"date_created":"2026-02-27T20:41:54Z","volume":5,"title":"Multilevel fault diagnostics for railway applications using limited historical data","doi":"10.36001/phmap.2025.v5i1.4449"},{"citation":{"bibtex":"@inproceedings{Hemsel_Scheidemann_Bornmann_Littmann_Sextro_2025, title={Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode}, author={Hemsel, Tobias and Scheidemann, Claus and Bornmann, Peter and Littmann, Walter and Sextro, Walter}, year={2025} }","short":"T. Hemsel, C. Scheidemann, P. Bornmann, W. Littmann, W. Sextro, in: 2025.","mla":"Hemsel, Tobias, et al. <i>Intensive Ultrasonic Cleaning of Surfaces by Means of Lead-Free Ultrasonic Transducer with Focussing Sonotrode</i>. 2025.","ama":"Hemsel T, Scheidemann C, Bornmann P, Littmann W, Sextro W. Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode. In: ; 2025.","apa":"Hemsel, T., Scheidemann, C., Bornmann, P., Littmann, W., &#38; Sextro, W. (2025). <i>Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode</i>. International Congress on Ultrasonics (ICU), Paderborn, Germany.","ieee":"T. Hemsel, C. Scheidemann, P. Bornmann, W. Littmann, and W. Sextro, “Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode,” presented at the International Congress on Ultrasonics (ICU), Paderborn, Germany, 2025.","chicago":"Hemsel, Tobias, Claus Scheidemann, Peter Bornmann, Walter Littmann, and Walter Sextro. “Intensive Ultrasonic Cleaning of Surfaces by Means of Lead-Free Ultrasonic Transducer with Focussing Sonotrode,” 2025."},"year":"2025","has_accepted_license":"1","conference":{"end_date":"2025-09-25","location":"Paderborn, Germany","name":"International Congress on Ultrasonics (ICU)","start_date":"2025-09-21"},"title":"Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode","date_created":"2026-03-02T10:47:48Z","author":[{"first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel"},{"full_name":"Scheidemann, Claus","id":"38259","last_name":"Scheidemann","first_name":"Claus"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"first_name":"Walter","full_name":"Littmann, Walter","last_name":"Littmann"},{"first_name":"Walter","id":"21220","full_name":"Sextro, Walter","last_name":"Sextro"}],"oa":"1","date_updated":"2026-03-02T10:58:37Z","file":[{"file_size":1946202,"file_id":"64801","file_name":"ICU_2025_Hemsel.pdf","access_level":"open_access","date_updated":"2026-03-02T10:58:37Z","creator":"hemsel","date_created":"2026-03-02T10:46:43Z","relation":"main_file","content_type":"application/pdf"}],"status":"public","abstract":[{"text":"Intensive ultrasonic cleaning of surfaces by means of a lead-free ultrasonic transducer with focusing sonotrode\r\nUltrasonic cleaning baths are probably a coincidental development: After underwater sonars had already been successfully used to detect submarines before 1920, it was probably observed in this environment that the ultrasonic oscillators not only showed a self-cleaning effect but also cavitation damage. At the beginning of the 1950s, the first ultrasonic cleaning devices finally came onto the market. Today, the range of applications ranges from household appliances for jewellery and eyewear cleaning to classic cleaning baths for metal parts and systems for cleaning highly sensitive electronic components. There is a certain gap in handheld, mobile cleaning equipment. Although devices for spot cleaning of textiles are known, the cleaning effect is usually low. \r\nDue to the directive 2011/65/EU on the restriction of the use of hazardous substances in electrical and electronic equipment (RoHS) [1] lead should no longer be used in technical devices. As today’s standard ceramics for medium and high-power ultrasonic transducers typically contain lead, there is a need to explore the use of lead-free ceramics in this field. Honda [2] already offers a cleaning transducer based on lead-free piezoelectric ceramics, but it is designed to be used in cleaning baths.\r\nThis article presents the model-based development of a highly innovative ultrasonic cleaner. On the one hand, lead-free piezoelectric ceramics are used, and on the other hand, a special sonotrode has been developed that concentrates the sound in such a way that a strong cavitation and thus cleaning effect is achieved with comparatively low power in a short time. Coupled field finite element method was used to find an appropriate geometry for the focussing sonotrode. The comparison of simulation and measurement results shows that the lead-free piezoceramics used do their job well and can keep up with standard ceramics, but more ceramic volume is needed to achieve same power. An advanced control concept was elaborated to ensure continuous hard cavitation at varying distances between the sonotrode and the part to be cleaned. Cleaning results for different surfaces and contaminations are presented. The concept of the focusing sonotrode shows that a convincing cleaning result can be achieved even with low power and in short time, provided that the oscillation system and control electronics are suitably coordinated.\r\n\r\nReferences\r\n[1] http://data.europa.eu/eli/dir/2011/65/2024-08-01 \r\n[2] https://en.honda-el.co.jp/product/ceramics/lineup/lead_off/lead-off \r\n","lang":"eng"}],"type":"conference","language":[{"iso":"eng"}],"file_date_updated":"2026-03-02T10:58:37Z","ddc":["620"],"user_id":"210","department":[{"_id":"151"}],"_id":"64800"},{"ddc":["620"],"file_date_updated":"2026-03-02T10:59:53Z","language":[{"iso":"eng"}],"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"61755","user_id":"210","department":[{"_id":"151"}],"file":[{"relation":"main_file","content_type":"application/pdf","file_size":644147,"file_name":"SHS25_IWPMA_2025.pdf","access_level":"open_access","file_id":"63817","date_updated":"2026-03-02T10:59:53Z","creator":"hemsel","date_created":"2026-01-30T11:07:48Z"}],"status":"public","type":"conference","title":"Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers","conference":{"start_date":"2025-07-1","name":"22nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)","location":"Vilnius, Lithuania","end_date":"2025-07-3"},"date_updated":"2026-03-02T10:59:53Z","oa":"1","date_created":"2025-10-08T14:22:32Z","author":[{"last_name":"Scheidemann","id":"38259","full_name":"Scheidemann, Claus","first_name":"Claus"},{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"}],"year":"2025","citation":{"chicago":"Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Time Dependent Material Characteristics of Prestressed Piezoelectric Ceramics in Langevin Transducers,” 2025.","ieee":"C. Scheidemann, T. Hemsel, and W. Sextro, “Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers,” presented at the 22nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Vilnius, Lithuania, 2025.","ama":"Scheidemann C, Hemsel T, Sextro W. Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers. In: ; 2025.","apa":"Scheidemann, C., Hemsel, T., &#38; Sextro, W. (2025). <i>Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers</i>. 22nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Vilnius, Lithuania.","mla":"Scheidemann, Claus, et al. <i>Time Dependent Material Characteristics of Prestressed Piezoelectric Ceramics in Langevin Transducers</i>. 2025.","short":"C. Scheidemann, T. Hemsel, W. Sextro, in: 2025.","bibtex":"@inproceedings{Scheidemann_Hemsel_Sextro_2025, title={Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers}, author={Scheidemann, Claus and Hemsel, Tobias and Sextro, Walter}, year={2025} }"},"has_accepted_license":"1"},{"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"61757","user_id":"210","department":[{"_id":"151"}],"ddc":["620"],"file_date_updated":"2026-03-02T10:59:36Z","language":[{"iso":"eng"}],"type":"conference","file":[{"relation":"main_file","content_type":"application/pdf","file_size":783790,"file_id":"63816","file_name":"Sch25_ICU_2025.pdf","access_level":"open_access","date_updated":"2026-03-02T10:59:36Z","date_created":"2026-01-30T07:30:44Z","creator":"hemsel"}],"status":"public","oa":"1","date_updated":"2026-03-02T10:59:36Z","author":[{"first_name":"Claus","id":"38259","full_name":"Scheidemann, Claus","last_name":"Scheidemann"},{"last_name":"Porzenheim","full_name":"Porzenheim, Julius","first_name":"Julius"},{"first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"}],"date_created":"2025-10-08T14:33:44Z","title":"Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers","conference":{"location":"Paderborn, Germany","end_date":"2025-09-25","start_date":"2025-09-21","name":"2025 International Congress on Ultrasonics (ICU)"},"has_accepted_license":"1","year":"2025","citation":{"chicago":"Scheidemann, Claus, Julius Porzenheim, Tobias Hemsel, and Walter Sextro. “Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers,” 2025.","ieee":"C. Scheidemann, J. Porzenheim, T. Hemsel, and W. Sextro, “Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers,” presented at the 2025 International Congress on Ultrasonics (ICU), Paderborn, Germany, 2025.","ama":"Scheidemann C, Porzenheim J, Hemsel T, Sextro W. Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers. In: ; 2025.","apa":"Scheidemann, C., Porzenheim, J., Hemsel, T., &#38; Sextro, W. (2025). <i>Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers</i>. 2025 International Congress on Ultrasonics (ICU), Paderborn, Germany.","short":"C. Scheidemann, J. Porzenheim, T. Hemsel, W. Sextro, in: 2025.","bibtex":"@inproceedings{Scheidemann_Porzenheim_Hemsel_Sextro_2025, title={Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers}, author={Scheidemann, Claus and Porzenheim, Julius and Hemsel, Tobias and Sextro, Walter}, year={2025} }","mla":"Scheidemann, Claus, et al. <i>Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers</i>. 2025."}},{"_id":"57829","user_id":"43991","language":[{"iso":"eng"}],"type":"journal_article","publication":"Technische Mechanik - European Journal of Engineering Mechanics","abstract":[{"lang":"eng","text":"Artificial intelligence (AI) is driving transformative changes across numerous fields, revolutionizing conventional processes and creating new opportunities for innovation. The development of mechatronic systems is undergoing a similar transformation. Over the past decade, modeling, simulation, and optimization techniques have become integral to the design process, paving the way for the adoption of AI-based methods. In this paper, we examine the potential for integrating AI into the engineering design process, using the V-model from the VDI guideline 2206, considered the state-of-the-art in product design, as a foundation. We identify and classify AI methods based on their suitability for specific stages within the engineering product design workflow. Furthermore, we present a series of application examples where AI-assisted design has been successfully implemented by the authors. These examples, drawn from research projects within the DFG Priority Program \\emph{SPP~2353: Daring More Intelligence - Design Assistants in Mechanics and Dynamics}, showcase a diverse range of applications across mechanics and mechatronics, including areas such as acoustics and robotics."}],"status":"public","date_updated":"2026-03-03T06:31:55Z","author":[{"full_name":"de Payrebrune, Kristin M.","last_name":"de Payrebrune","first_name":"Kristin M."},{"last_name":"Flaßkamp","full_name":"Flaßkamp, Kathrin","first_name":"Kathrin"},{"first_name":"Tom","full_name":"Ströhla, Tom","last_name":"Ströhla"},{"last_name":"Sattel","full_name":"Sattel, Thomas","first_name":"Thomas"},{"first_name":"Dieter","last_name":"Bestle","full_name":"Bestle, Dieter"},{"last_name":"Röder","full_name":"Röder, Benedict","first_name":"Benedict"},{"first_name":"Peter","last_name":"Eberhard","full_name":"Eberhard, Peter"},{"first_name":"Sebastian","last_name":"Peitz","full_name":"Peitz, Sebastian"},{"first_name":"Marcus","full_name":"Stoffel, Marcus","last_name":"Stoffel"},{"first_name":"Gulakala","full_name":"Rutwik, Gulakala","last_name":"Rutwik"},{"full_name":"Aditya, Borse","last_name":"Aditya","first_name":"Borse"},{"first_name":"Meike Claudia","orcid":"0009-0009-9767-7168","last_name":"Wohlleben","id":"43991","full_name":"Wohlleben, Meike Claudia"},{"first_name":"Walter","id":"21220","full_name":"Sextro, Walter","last_name":"Sextro"},{"last_name":"Raff","full_name":"Raff, Maximilian","first_name":"Maximilian"},{"full_name":"Remy, C. David","last_name":"Remy","first_name":"C. David"},{"last_name":"Yadav","full_name":"Yadav, Manish","first_name":"Manish"},{"full_name":"Stender, Merten","last_name":"Stender","first_name":"Merten"},{"last_name":"van Delden","full_name":"van Delden, Jan","first_name":"Jan"},{"full_name":"Lüddecke, Timo","last_name":"Lüddecke","first_name":"Timo"},{"last_name":"Langer","full_name":"Langer, Sabine C.","first_name":"Sabine C."},{"last_name":"Schultz","full_name":"Schultz, Julius","first_name":"Julius"},{"full_name":"Blech, Christopher","last_name":"Blech","first_name":"Christopher"}],"date_created":"2024-12-18T09:07:41Z","volume":45,"title":"The impact of AI on engineering design procedures for dynamical systems","doi":"10.24352/UB.OVGU-2025-037","quality_controlled":"1","issue":"1","year":"2025","citation":{"ama":"de Payrebrune KM, Flaßkamp K, Ströhla T, et al. The impact of AI on engineering design procedures for dynamical systems. <i>Technische Mechanik - European Journal of Engineering Mechanics</i>. 2025;45(1):1-23. doi:<a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">10.24352/UB.OVGU-2025-037</a>","ieee":"K. M. de Payrebrune <i>et al.</i>, “The impact of AI on engineering design procedures for dynamical systems,” <i>Technische Mechanik - European Journal of Engineering Mechanics</i>, vol. 45, no. 1, pp. 1–23, 2025, doi: <a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">10.24352/UB.OVGU-2025-037</a>.","chicago":"Payrebrune, Kristin M. de, Kathrin Flaßkamp, Tom Ströhla, Thomas Sattel, Dieter Bestle, Benedict Röder, Peter Eberhard, et al. “The Impact of AI on Engineering Design Procedures for Dynamical Systems.” <i>Technische Mechanik - European Journal of Engineering Mechanics</i> 45, no. 1 (2025): 1–23. <a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">https://doi.org/10.24352/UB.OVGU-2025-037</a>.","apa":"de Payrebrune, K. M., Flaßkamp, K., Ströhla, T., Sattel, T., Bestle, D., Röder, B., Eberhard, P., Peitz, S., Stoffel, M., Rutwik, G., Aditya, B., Wohlleben, M. C., Sextro, W., Raff, M., Remy, C. D., Yadav, M., Stender, M., van Delden, J., Lüddecke, T., … Blech, C. (2025). The impact of AI on engineering design procedures for dynamical systems. <i>Technische Mechanik - European Journal of Engineering Mechanics</i>, <i>45</i>(1), 1–23. <a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">https://doi.org/10.24352/UB.OVGU-2025-037</a>","mla":"de Payrebrune, Kristin M., et al. “The Impact of AI on Engineering Design Procedures for Dynamical Systems.” <i>Technische Mechanik - European Journal of Engineering Mechanics</i>, vol. 45, no. 1, 2025, pp. 1–23, doi:<a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">10.24352/UB.OVGU-2025-037</a>.","bibtex":"@article{de Payrebrune_Flaßkamp_Ströhla_Sattel_Bestle_Röder_Eberhard_Peitz_Stoffel_Rutwik_et al._2025, title={The impact of AI on engineering design procedures for dynamical systems}, volume={45}, DOI={<a href=\"https://doi.org/10.24352/UB.OVGU-2025-037\">10.24352/UB.OVGU-2025-037</a>}, number={1}, journal={Technische Mechanik - European Journal of Engineering Mechanics}, author={de Payrebrune, Kristin M. and Flaßkamp, Kathrin and Ströhla, Tom and Sattel, Thomas and Bestle, Dieter and Röder, Benedict and Eberhard, Peter and Peitz, Sebastian and Stoffel, Marcus and Rutwik, Gulakala and et al.}, year={2025}, pages={1–23} }","short":"K.M. de Payrebrune, K. Flaßkamp, T. Ströhla, T. Sattel, D. Bestle, B. Röder, P. Eberhard, S. Peitz, M. Stoffel, G. Rutwik, B. Aditya, M.C. Wohlleben, W. Sextro, M. Raff, C.D. Remy, M. Yadav, M. Stender, J. van Delden, T. Lüddecke, S.C. Langer, J. Schultz, C. Blech, Technische Mechanik - European Journal of Engineering Mechanics 45 (2025) 1–23."},"page":"1-23","intvolume":"        45"},{"language":[{"iso":"eng"}],"user_id":"43991","department":[{"_id":"151"}],"_id":"62988","status":"public","type":"book_chapter","publication":"Lecture Notes in Computer Science","doi":"10.1007/978-3-032-04555-3_21","title":"Surrogate-Assisted Multi-objective Design of Complex Multibody Systems","date_created":"2025-12-09T12:46:17Z","author":[{"full_name":"Amakor, Augustina C.","last_name":"Amakor","first_name":"Augustina C."},{"first_name":"Manuel B.","full_name":"Berkemeier, Manuel B.","last_name":"Berkemeier"},{"full_name":"Wohlleben, Meike Claudia","id":"43991","orcid":"0009-0009-9767-7168","last_name":"Wohlleben","first_name":"Meike Claudia"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"},{"last_name":"Peitz","full_name":"Peitz, Sebastian","first_name":"Sebastian"}],"date_updated":"2026-03-03T06:32:10Z","publisher":"Springer Nature Switzerland","citation":{"apa":"Amakor, A. C., Berkemeier, M. B., Wohlleben, M. C., Sextro, W., &#38; Peitz, S. (2025). Surrogate-Assisted Multi-objective Design of Complex Multibody Systems. In <i>Lecture Notes in Computer Science</i>. Springer Nature Switzerland. <a href=\"https://doi.org/10.1007/978-3-032-04555-3_21\">https://doi.org/10.1007/978-3-032-04555-3_21</a>","bibtex":"@inbook{Amakor_Berkemeier_Wohlleben_Sextro_Peitz_2025, place={Cham}, title={Surrogate-Assisted Multi-objective Design of Complex Multibody Systems}, DOI={<a href=\"https://doi.org/10.1007/978-3-032-04555-3_21\">10.1007/978-3-032-04555-3_21</a>}, booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland}, author={Amakor, Augustina C. and Berkemeier, Manuel B. and Wohlleben, Meike Claudia and Sextro, Walter and Peitz, Sebastian}, year={2025} }","short":"A.C. Amakor, M.B. Berkemeier, M.C. Wohlleben, W. Sextro, S. Peitz, in: Lecture Notes in Computer Science, Springer Nature Switzerland, Cham, 2025.","mla":"Amakor, Augustina C., et al. “Surrogate-Assisted Multi-Objective Design of Complex Multibody Systems.” <i>Lecture Notes in Computer Science</i>, Springer Nature Switzerland, 2025, doi:<a href=\"https://doi.org/10.1007/978-3-032-04555-3_21\">10.1007/978-3-032-04555-3_21</a>.","ama":"Amakor AC, Berkemeier MB, Wohlleben MC, Sextro W, Peitz S. Surrogate-Assisted Multi-objective Design of Complex Multibody Systems. In: <i>Lecture Notes in Computer Science</i>. Springer Nature Switzerland; 2025. doi:<a href=\"https://doi.org/10.1007/978-3-032-04555-3_21\">10.1007/978-3-032-04555-3_21</a>","ieee":"A. C. Amakor, M. B. Berkemeier, M. C. Wohlleben, W. Sextro, and S. Peitz, “Surrogate-Assisted Multi-objective Design of Complex Multibody Systems,” in <i>Lecture Notes in Computer Science</i>, Cham: Springer Nature Switzerland, 2025.","chicago":"Amakor, Augustina C., Manuel B. Berkemeier, Meike Claudia Wohlleben, Walter Sextro, and Sebastian Peitz. “Surrogate-Assisted Multi-Objective Design of Complex Multibody Systems.” In <i>Lecture Notes in Computer Science</i>. Cham: Springer Nature Switzerland, 2025. <a href=\"https://doi.org/10.1007/978-3-032-04555-3_21\">https://doi.org/10.1007/978-3-032-04555-3_21</a>."},"year":"2025","place":"Cham","publication_status":"published","publication_identifier":{"isbn":["9783032045546","9783032045553"],"issn":["0302-9743","1611-3349"]},"quality_controlled":"1"},{"date_updated":"2026-03-03T13:57:25Z","date_created":"2026-03-02T12:02:08Z","author":[{"first_name":"Markus Daniel","last_name":"Dohmen","full_name":"Dohmen, Markus Daniel","id":"69217"},{"last_name":"Bornmann","full_name":"Bornmann, Peter","first_name":"Peter"},{"first_name":"Walter","full_name":"Littmann, Walter","last_name":"Littmann"},{"full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel","first_name":"Tobias"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"title":"Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems","has_accepted_license":"1","year":"2025","citation":{"bibtex":"@inproceedings{Dohmen_Bornmann_Littmann_Hemsel_Sextro_2025, title={Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems}, author={Dohmen, Markus Daniel and Bornmann, Peter and Littmann, Walter and Hemsel, Tobias and Sextro, Walter}, year={2025} }","short":"M.D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, W. Sextro, in: 2025.","mla":"Dohmen, Markus Daniel, et al. <i>Modellgestützte Optimierung Eines Ultraschall-Torsionsschweißsystems</i>. 2025.","ama":"Dohmen MD, Bornmann P, Littmann W, Hemsel T, Sextro W. Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems. In: ; 2025.","apa":"Dohmen, M. D., Bornmann, P., Littmann, W., Hemsel, T., &#38; Sextro, W. (2025). <i>Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems</i>.","ieee":"M. D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, and W. Sextro, “Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems,” 2025.","chicago":"Dohmen, Markus Daniel, Peter Bornmann, Walter Littmann, Tobias Hemsel, and Walter Sextro. “Modellgestützte Optimierung Eines Ultraschall-Torsionsschweißsystems,” 2025."},"_id":"64804","user_id":"210","department":[{"_id":"151"}],"ddc":["620"],"language":[{"iso":"eng"}],"file_date_updated":"2026-03-02T12:01:28Z","type":"conference","abstract":[{"text":"Das Ultraschallschweißen ist in der Verpackungs-, Halbleiter- und Automobilindustrie weit verbreitet. Neben dem Schweißen von Blechen bietet es die Möglichkeit, Folien oder Hülsen zu verschweißen. Konventionelle Schweißsysteme arbeiten mit Längs- oder Biegeschwingungen, deren Hauptanteil in der Schweißebene liegt. Der orthogonale Anteil verursacht zusätzliche Belastungen im Schweißgut. Bei der Verwendung von Torsionsschwingungen wird die orthogonale Komponente der Schwingung nahezu eliminiert. \r\nIn diesem Beitrag wird ein System vorgestellt, bei dem die Torsionsschwingung durch tangentiale Polarisation der Piezokeramiken erzeugt wird. Der Transducer ist axial oberhalb des Schweißpunktes platziert, sodass die Normalkraft momentfrei aufgebracht wird. Das Schweißwerkzeug weicht beim Schweißvorgang daher seitlich nicht aus. Zudem wird das Schweißen an schwer zugänglichen Positionen vereinfacht, da der Systemaufbau deutlich schlanker ist als konventionelle Ultraschallschweißsysteme.\r\nDie Auslegung des Torsionsschwingsystems stellt eine Herausforderung dar. Insbesondere muss die Lagerung des Schwingers betrachtet werden, da diese die Normalkraft übertragen und zugleich die Schwingung nicht beeinträchtigen soll. Der Schweißprozess bewirkt eine Verschiebung von Schwingungsknoten und Resonanzfrequenzen. Im Rahmen des Vortrags wird ein Finite-Elemente-Simulationsmodell vorgestellt, das in Kombination mit einem Lastmodell das Systemverhalten während des Schweißprozesses abbildet. Die Geometrie des Transducers wurde schrittweise so angepasst, dass die Schwingamplitude im Lagerungspunkt minimiert wird.  \r\n","lang":"ger"}],"file":[{"content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2026-03-02T12:01:28Z","date_created":"2026-03-02T12:01:28Z","creator":"hemsel","file_size":1912154,"file_id":"64805","access_level":"closed","file_name":"Dohmen_UPB_LDM_IMAPS_2025.pdf"}],"status":"public"},{"date_created":"2025-02-10T19:54:28Z","author":[{"last_name":"Muth","orcid":"0000-0002-2938-5616","full_name":"Muth, Lars","id":"77313","first_name":"Lars"},{"first_name":"Raphael","full_name":"Zharia, Raphael","last_name":"Zharia"},{"first_name":"Hürkan","last_name":"Sahin","full_name":"Sahin, Hürkan"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"date_updated":"2025-02-27T19:53:09Z","publisher":"The Tire Society","doi":"https://doi.org/10.2346/TST-24-009","title":"Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network","quality_controlled":"1","publication_status":"epub_ahead","citation":{"short":"L. Muth, R. Zharia, H. Sahin, W. Sextro, Tire Science and Technology (2025).","bibtex":"@article{Muth_Zharia_Sahin_Sextro_2025, title={Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network}, DOI={<a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>}, journal={Tire Science and Technology}, publisher={The Tire Society}, author={Muth, Lars and Zharia, Raphael and Sahin, Hürkan and Sextro, Walter}, year={2025} }","mla":"Muth, Lars, et al. “Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network.” <i>Tire Science and Technology</i>, The Tire Society, 2025, doi:<a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>.","apa":"Muth, L., Zharia, R., Sahin, H., &#38; Sextro, W. (2025). Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network. <i>Tire Science and Technology</i>. <a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>","ama":"Muth L, Zharia R, Sahin H, Sextro W. Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network. <i>Tire Science and Technology</i>. Published online 2025. doi:<a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>","chicago":"Muth, Lars, Raphael Zharia, Hürkan Sahin, and Walter Sextro. “Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network.” <i>Tire Science and Technology</i>, 2025. <a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>.","ieee":"L. Muth, R. Zharia, H. Sahin, and W. Sextro, “Prediction of the Frictional Power Distribution in the Tire Contact Patch Based on an Empirical Tire Model and an Artificial Neural Network,” <i>Tire Science and Technology</i>, 2025, doi: <a href=\"https://doi.org/10.2346/TST-24-009\">https://doi.org/10.2346/TST-24-009</a>."},"year":"2025","department":[{"_id":"151"},{"_id":"9"}],"user_id":"77313","_id":"58556","language":[{"iso":"eng"}],"extern":"1","article_type":"original","publication":"Tire Science and Technology","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"To predict and prevent uneven tire wear in addition to a reduction of overall tire wear, it is essential to estimate not only the total amount of wear but also how the wear is distributed across the tire width. This requires knowledge of the frictional power distribution in the tire contact patch, which is the basis for calculating tire wear using a wear law. Usually, only 3D structural tire models can generate such distributed contact results. However, they involve high computational costs and cannot be used for comprehensive optimization of a vehicle’s suspension system with respect to tire wear characteristics. Hence, this contribution presents a methodology on how to accelerate the prediction of the frictional power distribution using two components: The structural tire model is replaced by an empirical tire model that on its own is not able to generate distributed contact results. Therefore, an artificial neural network is trained to predict the desired contact results from the kinematic quantities calculated by the empirical tire model. In the initial training phase, both components are fitted to data generated by the original complex tire model. After training, the empirical tire model can replace the structural tire model in vehicle simulations, resulting in significantly shorter calculation times. The simulation results are fed into the artificial neural network, which predicts the frictional power distributions over the tire width with negligible additional effort. Overall, the methodology reduces calculation time for the prediction of tire wear based on virtual test drives to approximately 25% of the time needed when using structural tire models."}]},{"status":"public","citation":{"ama":"Wohlleben MC, Linneweber JM, Schütte J, Sextro W. Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach. Published online 2025.","chicago":"Wohlleben, Meike Claudia, Jill Mercedes Linneweber, Jan Schütte, and Walter Sextro. “Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach.” MDPI AG, 2025.","ieee":"M. C. Wohlleben, J. M. Linneweber, J. Schütte, and W. Sextro, “Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach.” MDPI AG, 2025.","bibtex":"@article{Wohlleben_Linneweber_Schütte_Sextro_2025, title={Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach}, publisher={MDPI AG}, author={Wohlleben, Meike Claudia and Linneweber, Jill Mercedes and Schütte, Jan and Sextro, Walter}, year={2025} }","mla":"Wohlleben, Meike Claudia, et al. <i>Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach</i>. MDPI AG, 2025.","short":"M.C. Wohlleben, J.M. Linneweber, J. Schütte, W. Sextro, (2025).","apa":"Wohlleben, M. C., Linneweber, J. M., Schütte, J., &#38; Sextro, W. (2025). <i>Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach</i>. MDPI AG."},"abstract":[{"lang":"eng","text":"<jats:p>Hybrid modeling aims to combine physical and data-driven models to increase simulation accuracy without losing physical interpretability. In the context of dynamic mechanical systems, this enables the compensation of modeling inaccuracies that arise from simplifications, missing effects, or uncertain parameters. In this work, a hybrid model is used as a starting point, in which the discrepancy between simulation and measurement is learned and compensated by a data-driven correction element. To integrate such models into commercial multibody system (MBS) software like MSC Adams and Simpack, the formulation is adapted to operate directly on the force level. This allows implementation via standard co-simulation interfaces without modifying the system’s differential equations or solvers. The method is demonstrated using a single-mass oscillator with synthetic measurement data. Results show that the coupled simulation works reliably and that the hybrid model significantly improves accuracy while remaining compatible with established industrial simulation workflows.</jats:p>"}],"year":"2025","type":"preprint","publication_status":"published","language":[{"iso":"eng"}],"title":"Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach","author":[{"full_name":"Wohlleben, Meike Claudia","id":"43991","orcid":"0009-0009-9767-7168","last_name":"Wohlleben","first_name":"Meike Claudia"},{"first_name":"Jill Mercedes","full_name":"Linneweber, Jill Mercedes","id":"57639","last_name":"Linneweber"},{"first_name":"Jan","last_name":"Schütte","orcid":"0000-0001-9025-9742","id":"22109","full_name":"Schütte, Jan"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"}],"user_id":"43991","date_created":"2025-08-06T06:42:30Z","_id":"60881","publisher":"MDPI AG","date_updated":"2025-08-07T06:47:23Z"},{"abstract":[{"lang":"eng","text":"The integration of data-driven models and specifically machine learning for conditon monitoring and predictive maintenance into companies, especially small and medium-sized enterprises, offers significant opportunities in reducing costs, operating more sustainably, and maintaining long-term competitiveness. However, many small and medium-sized enterprises lack the necessary resources and expertise to derive knowledge from data and integrate their own machine learning based solutions. To address this challenge, a framework is presented that enables the automated generation of data-driven models with a particular focus on condition monitoring and predictive maintenance, but applicable to other use cases as well. Using a dataset from the 2022 data challenge of the prognostics and health management society, it is demonstrated that the framework can generate high-performing models, achieving F1-scores up to 0.998, exemplarily for a classification task."}],"status":"public","publication":"2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)","type":"conference","language":[{"iso":"eng"}],"_id":"63193","project":[{"name":"Industrie 4.0 Ökosystem für den automatisierten Einsatz von datengetriebenen Services (I4.0AutoServ)","_id":"1483"}],"department":[{"_id":"151"}],"user_id":"47233","year":"2025","citation":{"chicago":"Löwen, Alexander, Dennis Quirin, Marc Hesse, Osarenren Kennedy Aimiyekagbon, and Walter Sextro. “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems.” In <i>2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. IEEE, 2025. <a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">https://doi.org/10.1109/etfa65518.2025.11205799</a>.","ieee":"A. Löwen, D. Quirin, M. Hesse, O. K. Aimiyekagbon, and W. Sextro, “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems,” presented at the 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), Porto, 2025, doi: <a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">10.1109/etfa65518.2025.11205799</a>.","ama":"Löwen A, Quirin D, Hesse M, Aimiyekagbon OK, Sextro W. Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems. In: <i>2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. IEEE; 2025. doi:<a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">10.1109/etfa65518.2025.11205799</a>","apa":"Löwen, A., Quirin, D., Hesse, M., Aimiyekagbon, O. K., &#38; Sextro, W. (2025). Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems. <i>2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), Porto. <a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">https://doi.org/10.1109/etfa65518.2025.11205799</a>","bibtex":"@inproceedings{Löwen_Quirin_Hesse_Aimiyekagbon_Sextro_2025, title={Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems}, DOI={<a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">10.1109/etfa65518.2025.11205799</a>}, booktitle={2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)}, publisher={IEEE}, author={Löwen, Alexander and Quirin, Dennis and Hesse, Marc and Aimiyekagbon, Osarenren Kennedy and Sextro, Walter}, year={2025} }","mla":"Löwen, Alexander, et al. “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems.” <i>2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, IEEE, 2025, doi:<a href=\"https://doi.org/10.1109/etfa65518.2025.11205799\">10.1109/etfa65518.2025.11205799</a>.","short":"A. Löwen, D. Quirin, M. Hesse, O.K. Aimiyekagbon, W. Sextro, in: 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2025."},"publication_status":"published","related_material":{"link":[{"relation":"confirmation","url":"https://ieeexplore.ieee.org/document/11205799"}]},"title":"Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems","doi":"10.1109/etfa65518.2025.11205799","conference":{"location":"Porto","name":"2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)"},"publisher":"IEEE","date_updated":"2025-12-18T09:12:48Z","author":[{"first_name":"Alexander","last_name":"Löwen","full_name":"Löwen, Alexander","id":"47233"},{"full_name":"Quirin, Dennis","last_name":"Quirin","first_name":"Dennis"},{"first_name":"Marc","last_name":"Hesse","full_name":"Hesse, Marc"},{"id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy"},{"last_name":"Sextro","full_name":"Sextro, Walter","id":"21220","first_name":"Walter"}],"date_created":"2025-12-18T09:07:38Z"},{"publisher":"MDPI AG","date_created":"2024-02-20T06:46:43Z","title":"Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions","quality_controlled":"1","issue":"3","year":"2024","keyword":["piezoelectric transducer","self-sensing","fault detection","diagnostics","hairline crack","condition monitoring"],"language":[{"iso":"eng"}],"publication":"Electronics","abstract":[{"lang":"eng","text":"In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators."}],"date_updated":"2024-03-15T16:15:56Z","volume":13,"author":[{"id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy"},{"last_name":"Bender","full_name":"Bender, Amelie","id":"54290","first_name":"Amelie"},{"first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"doi":"10.3390/electronics13030521","publication_identifier":{"issn":["2079-9292"]},"publication_status":"published","intvolume":"        13","citation":{"apa":"Aimiyekagbon, O. K., Bender, A., Hemsel, T., &#38; Sextro, W. (2024). Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. <i>Electronics</i>, <i>13</i>(3), Article 521. <a href=\"https://doi.org/10.3390/electronics13030521\">https://doi.org/10.3390/electronics13030521</a>","short":"O.K. Aimiyekagbon, A. Bender, T. Hemsel, W. Sextro, Electronics 13 (2024).","bibtex":"@article{Aimiyekagbon_Bender_Hemsel_Sextro_2024, title={Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions}, volume={13}, DOI={<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>}, number={3521}, journal={Electronics}, publisher={MDPI AG}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Hemsel, Tobias and Sextro, Walter}, year={2024} }","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” <i>Electronics</i>, vol. 13, no. 3, 521, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>.","ama":"Aimiyekagbon OK, Bender A, Hemsel T, Sextro W. Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. <i>Electronics</i>. 2024;13(3). doi:<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>","ieee":"O. K. Aimiyekagbon, A. Bender, T. Hemsel, and W. Sextro, “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions,” <i>Electronics</i>, vol. 13, no. 3, Art. no. 521, 2024, doi: <a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>.","chicago":"Aimiyekagbon, Osarenren Kennedy, Amelie Bender, Tobias Hemsel, and Walter Sextro. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” <i>Electronics</i> 13, no. 3 (2024). <a href=\"https://doi.org/10.3390/electronics13030521\">https://doi.org/10.3390/electronics13030521</a>."},"_id":"51518","department":[{"_id":"151"}],"user_id":"9557","article_number":"521","article_type":"original","funded_apc":"1","type":"journal_article","status":"public"},{"language":[{"iso":"eng"}],"keyword":["retrofit","diagnosis","prognostics","RUL prediction","missing data","ball bearings"],"department":[{"_id":"151"}],"user_id":"54290","_id":"55336","status":"public","abstract":[{"lang":"eng","text":"Predicting the remaining useful life of technical \r\nsystems has gained significant attention in recent years due to \r\nincreasing demands for extending the lifespan of degrading system \r\ncomponents. Therefore, already used systems are retrofitted by \r\nintegrating sensors to monitor their performance and \r\nfunctionality, enabling accurate diagnosis of their condition and \r\nprediction of their remaining useful life. One of the main \r\nchallenges in this field is identified in the missing data from the \r\ntime where the retrofitted system has already run but without \r\nbeing monitored by sensors. In this paper, a novel approach for \r\nthe combined diagnostics and prognostics of retrofitted systems is \r\nproposed. The methodology aims to provide an accurate diagnosis \r\nof the system’s health state and estimation of the remaining useful \r\nlife by a combination of a machine learning and expert knowledge. \r\nTo evaluate the effectiveness of the proposed methodology, a case \r\nstudy involving a retrofitted system in an industrial setting is \r\nselected and applied. It is demonstrated that the approach \r\neffectively diagnose the current system’s health state and \r\naccurately predict its remaining useful life, thereby enabling \r\npredictive maintenance and decision-making. Overall, our \r\nresearch contributes to advancing the field of condition \r\nmonitoring for retrofitted systems by providing a comprehensive \r\nmethodology that addresses the challenge of missing data."}],"publication":"Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)","type":"conference","doi":"10.1109/PHM61473.2024.00038","conference":{"start_date":"2024-05-28","name":"2024 Prognostics and System Health Management Conference (PHM)","location":"Stockholm, Schweden","end_date":"2024-05-31"},"title":"Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment","author":[{"last_name":"Bender","full_name":"Bender, Amelie","id":"54290","first_name":"Amelie"},{"id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy"},{"last_name":"Sextro","id":"21220","full_name":"Sextro, Walter","first_name":"Walter"}],"date_created":"2024-07-22T09:27:57Z","publisher":"IEEE Computer Society","date_updated":"2024-07-22T09:29:26Z","citation":{"bibtex":"@inproceedings{Bender_Aimiyekagbon_Sextro_2024, title={Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment}, DOI={<a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">10.1109/PHM61473.2024.00038</a>}, booktitle={Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)}, publisher={IEEE Computer Society}, author={Bender, Amelie and Aimiyekagbon, Osarenren Kennedy and Sextro, Walter}, year={2024} }","mla":"Bender, Amelie, et al. “Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment.” <i>Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)</i>, IEEE Computer Society, 2024, doi:<a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">10.1109/PHM61473.2024.00038</a>.","short":"A. Bender, O.K. Aimiyekagbon, W. Sextro, in: Proceedings of the 2024 Prognostics and System Health Management Conference (PHM), IEEE Computer Society, 2024.","apa":"Bender, A., Aimiyekagbon, O. K., &#38; Sextro, W. (2024). Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment. <i>Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)</i>. 2024 Prognostics and System Health Management Conference (PHM), Stockholm, Schweden. <a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">https://doi.org/10.1109/PHM61473.2024.00038</a>","ama":"Bender A, Aimiyekagbon OK, Sextro W. Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment. In: <i>Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)</i>. IEEE Computer Society; 2024. doi:<a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">10.1109/PHM61473.2024.00038</a>","chicago":"Bender, Amelie, Osarenren Kennedy Aimiyekagbon, and Walter Sextro. “Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment.” In <i>Proceedings of the 2024 Prognostics and System Health Management Conference (PHM)</i>. IEEE Computer Society, 2024. <a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">https://doi.org/10.1109/PHM61473.2024.00038</a>.","ieee":"A. Bender, O. K. Aimiyekagbon, and W. Sextro, “Diagnostics and Prognostics for Retrofitted Systems: A Comprehensive Approach for Enhanced System Health Assessment,” presented at the 2024 Prognostics and System Health Management Conference (PHM), Stockholm, Schweden, 2024, doi: <a href=\"https://doi.org/10.1109/PHM61473.2024.00038\">10.1109/PHM61473.2024.00038</a>."},"year":"2024","publication_identifier":{"isbn":["979-8-3503-6058-5"]},"quality_controlled":"1"},{"volume":13,"author":[{"first_name":"Magnus","last_name":"Redeker","full_name":"Redeker, Magnus"},{"first_name":"Dennis","full_name":"Quirin, Dennis","last_name":"Quirin"},{"first_name":"Rafael","last_name":"Schroeder","full_name":"Schroeder, Rafael"},{"last_name":"Klausmann","full_name":"Klausmann, Tobias","first_name":"Tobias"},{"last_name":"Löwen","full_name":"Löwen, Alexander","id":"47233","first_name":"Alexander"},{"full_name":"Wollbrink, Alexander","last_name":"Wollbrink","first_name":"Alexander"},{"first_name":"Heiko","full_name":"Stichweh, Heiko","last_name":"Stichweh"},{"first_name":"Simon","last_name":"Althoff","full_name":"Althoff, Simon"},{"first_name":"Amelie","last_name":"Bender","full_name":"Bender, Amelie","id":"54290"},{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"},{"first_name":"Marc","full_name":"Hesse, Marc","last_name":"Hesse"}],"date_created":"2024-11-04T12:30:48Z","publisher":"IEEE","date_updated":"2024-11-04T12:34:48Z","oa":"1","doi":"10.1109/etfa61755.2024.10711095","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/10711095","open_access":"1"}],"title":"Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production","publication_status":"published","intvolume":"        13","citation":{"apa":"Redeker, M., Quirin, D., Schroeder, R., Klausmann, T., Löwen, A., Wollbrink, A., Stichweh, H., Althoff, S., Bender, A., Sextro, W., &#38; Hesse, M. (2024). Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production. <i>2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, <i>13</i>. <a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">https://doi.org/10.1109/etfa61755.2024.10711095</a>","bibtex":"@inproceedings{Redeker_Quirin_Schroeder_Klausmann_Löwen_Wollbrink_Stichweh_Althoff_Bender_Sextro_et al._2024, title={Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production}, volume={13}, DOI={<a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">10.1109/etfa61755.2024.10711095</a>}, booktitle={2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)}, publisher={IEEE}, author={Redeker, Magnus and Quirin, Dennis and Schroeder, Rafael and Klausmann, Tobias and Löwen, Alexander and Wollbrink, Alexander and Stichweh, Heiko and Althoff, Simon and Bender, Amelie and Sextro, Walter and et al.}, year={2024} }","short":"M. Redeker, D. Quirin, R. Schroeder, T. Klausmann, A. Löwen, A. Wollbrink, H. Stichweh, S. Althoff, A. Bender, W. Sextro, M. Hesse, in: 2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2024.","mla":"Redeker, Magnus, et al. “Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production.” <i>2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, vol. 13, IEEE, 2024, doi:<a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">10.1109/etfa61755.2024.10711095</a>.","chicago":"Redeker, Magnus, Dennis Quirin, Rafael Schroeder, Tobias Klausmann, Alexander Löwen, Alexander Wollbrink, Heiko Stichweh, et al. “Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production.” In <i>2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, Vol. 13. IEEE, 2024. <a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">https://doi.org/10.1109/etfa61755.2024.10711095</a>.","ieee":"M. Redeker <i>et al.</i>, “Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production,” in <i>2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, 2024, vol. 13, doi: <a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">10.1109/etfa61755.2024.10711095</a>.","ama":"Redeker M, Quirin D, Schroeder R, et al. Towards a One-Stop-Shop Solution for the Application of Data-Driven Value-Adding Services in Production. In: <i>2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. Vol 13. IEEE; 2024. doi:<a href=\"https://doi.org/10.1109/etfa61755.2024.10711095\">10.1109/etfa61755.2024.10711095</a>"},"year":"2024","user_id":"47233","_id":"56862","language":[{"iso":"eng"}],"publication":"2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA)","type":"conference","status":"public"},{"_id":"61756","department":[{"_id":"151"}],"user_id":"210","ddc":["620"],"file_date_updated":"2026-03-02T11:00:13Z","language":[{"iso":"eng"}],"type":"conference","status":"public","file":[{"date_updated":"2026-03-02T11:00:13Z","date_created":"2026-01-30T14:50:06Z","creator":"hemsel","file_size":1984385,"file_name":"IWPMA_2024_Scheidemann.pdf","file_id":"63820","access_level":"open_access","content_type":"application/pdf","relation":"main_file"}],"date_updated":"2026-03-02T11:00:14Z","oa":"1","date_created":"2025-10-08T14:28:33Z","author":[{"first_name":"Claus","full_name":"Scheidemann, Claus","id":"38259","last_name":"Scheidemann"},{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"}],"title":"Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers","conference":{"location":"Hannover, Germany","end_date":"2024-07-26","start_date":"2024-07-22","name":"21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA)"},"has_accepted_license":"1","year":"2024","citation":{"ama":"Scheidemann C, Hemsel T, Sextro W. Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers. In: ; 2024.","ieee":"C. Scheidemann, T. Hemsel, and W. Sextro, “Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers,” presented at the 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany, 2024.","chicago":"Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers,” 2024.","bibtex":"@inproceedings{Scheidemann_Hemsel_Sextro_2024, title={Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers}, author={Scheidemann, Claus and Hemsel, Tobias and Sextro, Walter}, year={2024} }","short":"C. Scheidemann, T. Hemsel, W. Sextro, in: 2024.","mla":"Scheidemann, Claus, et al. <i>Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers</i>. 2024.","apa":"Scheidemann, C., Hemsel, T., &#38; Sextro, W. (2024). <i>Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers</i>. 21nd International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), Hannover, Germany."}},{"year":"2024","quality_controlled":"1","issue":"1","title":"Filter-based feature selection for prognostics incorporating cross correlations and failure thresholds","publisher":"PHM Society","date_created":"2024-08-08T09:22:33Z","abstract":[{"text":"<jats:p>Historical condition monitoring data from technical systems can be utilized to develop data-driven models for predicting the remaining useful life (RUL) of similar systems, whereas the Health Index (HI) often is a crucial component. The development of robust and accurate models requires meaningful features that reflect the system’s degradation process, enabling an accurate prediction of the system's HI. Traditionally, the identification of those is supported by one of various feature ranking methods. In literature, feature interdependencies and their transferability across various similar systems are not sufficiently considered in feature selection, exacerbating the challenge of HI prediction posed by the scarcity of data and system diversity in real-world applications. This work addresses this gaps by demonstrating how filter-based feature selection, incorporating failure thresholds and cross correlations, enhances feature selection leading to improved HI prediction. The proposed methodology is applied to a novel dataset* obtained from run-to-failure experiments on geared motors conducted as part of this study, which presents the aforementioned challenges. It is revealed that classical feature selection, consisting of feature ranking only, leaves potential untapped, which is utilized by the proposed selection methodology. It is shown that the proposed feature selection methodology leads to the best result with a RMSE of 0.14 in predicting the HI of a constructive different gearbox, while the features, determined by classical feature selection, lead to a RMSE of 0.19 at best.</jats:p>","lang":"eng"}],"publication":"PHM Society European Conference","language":[{"iso":"eng"}],"citation":{"short":"A. Löwen, P. Wissbrock, A. Bender, W. Sextro, PHM Society European Conference 8 (2024) 955–964.","bibtex":"@article{Löwen_Wissbrock_Bender_Sextro_2024, title={Filter-based feature selection for prognostics incorporating cross correlations and failure thresholds}, volume={8}, DOI={<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">10.36001/phme.2024.v8i1.4075</a>}, number={1}, journal={PHM Society European Conference}, publisher={PHM Society}, author={Löwen, Alexander and Wissbrock, Peter and Bender, Amelie and Sextro, Walter}, year={2024}, pages={955–964} }","mla":"Löwen, Alexander, et al. “Filter-Based Feature Selection for Prognostics Incorporating Cross Correlations and Failure Thresholds.” <i>PHM Society European Conference</i>, vol. 8, no. 1, PHM Society, 2024, pp. 955–64, doi:<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">10.36001/phme.2024.v8i1.4075</a>.","apa":"Löwen, A., Wissbrock, P., Bender, A., &#38; Sextro, W. (2024). Filter-based feature selection for prognostics incorporating cross correlations and failure thresholds. <i>PHM Society European Conference</i>, <i>8</i>(1), 955–964. <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">https://doi.org/10.36001/phme.2024.v8i1.4075</a>","ama":"Löwen A, Wissbrock P, Bender A, Sextro W. Filter-based feature selection for prognostics incorporating cross correlations and failure thresholds. <i>PHM Society European Conference</i>. 2024;8(1):955-964. doi:<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">10.36001/phme.2024.v8i1.4075</a>","chicago":"Löwen, Alexander, Peter Wissbrock, Amelie Bender, and Walter Sextro. “Filter-Based Feature Selection for Prognostics Incorporating Cross Correlations and Failure Thresholds.” <i>PHM Society European Conference</i> 8, no. 1 (2024): 955–64. <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">https://doi.org/10.36001/phme.2024.v8i1.4075</a>.","ieee":"A. Löwen, P. Wissbrock, A. Bender, and W. Sextro, “Filter-based feature selection for prognostics incorporating cross correlations and failure thresholds,” <i>PHM Society European Conference</i>, vol. 8, no. 1, pp. 955–964, 2024, doi: <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4075\">10.36001/phme.2024.v8i1.4075</a>."},"page":"955-964","intvolume":"         8","publication_status":"published","publication_identifier":{"isbn":["978-1-936263-40-0"]},"related_material":{"link":[{"relation":"confirmation","url":"https://papers.phmsociety.org/index.php/phme/article/download/4075/2477"}]},"conference":{"location":"Prague","end_date":"2024-07-05","start_date":"2024-07-03","name":"8th European Conference of the Prognostics and Health Management Society 2024"},"doi":"10.36001/phme.2024.v8i1.4075","date_updated":"2025-02-10T10:58:57Z","author":[{"last_name":"Löwen","id":"47233","full_name":"Löwen, Alexander","first_name":"Alexander"},{"last_name":"Wissbrock","full_name":"Wissbrock, Peter","first_name":"Peter"},{"full_name":"Bender, Amelie","id":"54290","last_name":"Bender","first_name":"Amelie"},{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"}],"volume":8,"status":"public","type":"journal_article","_id":"55568","user_id":"47233","department":[{"_id":"151"}]},{"status":"public","type":"conference","article_number":"9","department":[{"_id":"151"}],"user_id":"9557","_id":"55631","intvolume":"         8","citation":{"ieee":"A. Javanmardi, O. K. Aimiyekagbon, A. Bender, J. K. Kimotho, W. Sextro, and E. Hüllermeier, “Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions,” in <i>PHM Society European Conference</i>, Prague, Czech Republic, 2024, vol. 8, no. 1, doi: <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">10.36001/phme.2024.v8i1.4101</a>.","chicago":"Javanmardi, Alireza, Osarenren Kennedy Aimiyekagbon, Amelie Bender, James Kuria Kimotho, Walter Sextro, and Eyke Hüllermeier. “Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions.” In <i>PHM Society European Conference</i>, Vol. 8. PHM Society, 2024. <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">https://doi.org/10.36001/phme.2024.v8i1.4101</a>.","ama":"Javanmardi A, Aimiyekagbon OK, Bender A, Kimotho JK, Sextro W, Hüllermeier E. Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions. In: <i>PHM Society European Conference</i>. Vol 8. PHM Society; 2024. doi:<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">10.36001/phme.2024.v8i1.4101</a>","bibtex":"@inproceedings{Javanmardi_Aimiyekagbon_Bender_Kimotho_Sextro_Hüllermeier_2024, title={Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions}, volume={8}, DOI={<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">10.36001/phme.2024.v8i1.4101</a>}, number={19}, booktitle={PHM Society European Conference}, publisher={PHM Society}, author={Javanmardi, Alireza and Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Kimotho, James Kuria and Sextro, Walter and Hüllermeier, Eyke}, year={2024} }","mla":"Javanmardi, Alireza, et al. “Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions.” <i>PHM Society European Conference</i>, vol. 8, no. 1, 9, PHM Society, 2024, doi:<a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">10.36001/phme.2024.v8i1.4101</a>.","short":"A. Javanmardi, O.K. Aimiyekagbon, A. Bender, J.K. Kimotho, W. Sextro, E. Hüllermeier, in: PHM Society European Conference, PHM Society, 2024.","apa":"Javanmardi, A., Aimiyekagbon, O. K., Bender, A., Kimotho, J. K., Sextro, W., &#38; Hüllermeier, E. (2024). Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions. <i>PHM Society European Conference</i>, <i>8</i>(1), Article 9. <a href=\"https://doi.org/10.36001/phme.2024.v8i1.4101\">https://doi.org/10.36001/phme.2024.v8i1.4101</a>"},"publication_identifier":{"isbn":["978-1-936263-40-0"]},"publication_status":"published","doi":"10.36001/phme.2024.v8i1.4101","conference":{"end_date":"2024-07-05","location":"Prague, Czech Republic","name":"8th European Conference of the Prognostics and Health Management Society 2024","start_date":"2024-07-03"},"volume":8,"author":[{"first_name":"Alireza","full_name":"Javanmardi, Alireza","last_name":"Javanmardi"},{"first_name":"Osarenren Kennedy","full_name":"Aimiyekagbon, Osarenren Kennedy","id":"9557","last_name":"Aimiyekagbon"},{"last_name":"Bender","id":"54290","full_name":"Bender, Amelie","first_name":"Amelie"},{"first_name":"James Kuria","full_name":"Kimotho, James Kuria","last_name":"Kimotho"},{"last_name":"Sextro","full_name":"Sextro, Walter","id":"21220","first_name":"Walter"},{"id":"48129","full_name":"Hüllermeier, Eyke","last_name":"Hüllermeier","first_name":"Eyke"}],"date_updated":"2025-02-10T10:37:52Z","abstract":[{"lang":"eng","text":"This paper investigates the remaining useful lifetime (RUL) estimation of bearings under dynamic, i.e., time-varying, operating conditions (OC). Unlike conventional studies that assume constant OC in bearing accelerated life tests, we introduce a dataset with time-varying OC during run-to-failure experiments, simulating real-world scenarios. We explore data-driven approaches to identify the transition point from a healthy to an unhealthy state and estimate the RUL. Additionally, we examine strategies for integrating OC information to enhance RUL estimations. These methodologies are evaluated through numerical experiments using various machine learning algorithms."}],"publication":"PHM Society European Conference","language":[{"iso":"eng"}],"year":"2024","issue":"1","quality_controlled":"1","title":"Remaining Useful Lifetime Estimation of Bearings Operating under Time-Varying Conditions","date_created":"2024-08-19T07:41:32Z","publisher":"PHM Society"},{"type":"journal_article","publication":"PAMM","status":"public","abstract":[{"lang":"eng","text":"Abstract This study focuses on hybrid modeling approaches that combine physical and data-driven methods to create more effective dynamical system models. In particular, it examines discrepancy models, a type of hybrid model that integrates a physical system model with data-driven compensation for inaccuracies. The study applies two discrepancy modeling methods to a multibody system using discrepancies in the state vector and its time derivative, respectively. As an application example, a four-bar linkage with nonlinear damping is investigated, using a simplified conservative system as a physical model. The comparative analysis of the two methods shows that the continuous approach generally outperforms the discrete method in terms of accuracy and computational efficiency, especially for velocity prediction and prediction horizon. However, scenarios, where input signals for training and testing differ, present nuanced findings. When the continuous method is trained on complex signals (sine) and tested on simpler ones (stair), it struggles to deliver satisfactory results, exhibiting notably higher root mean square error (RMSE) values, particularly in angular velocity prediction. Conversely, training on simple signals (stair) and testing on complex ones (sine) surprisingly yields low RMSE values, indicating the continuous method’s adaptability. While the discrete method aligns more closely with expectations and performs better in certain scenarios, its results are consistently moderate, neither exceptional nor particularly poor. The study also introduces a selection framework for choosing the most suitable algorithm based on the specific characteristics of the modeling task. This framework provides guidance for researchers and practitioners in leveraging hybrid modeling effectively. Finally, the study concludes with an outlook on future research directions."}],"user_id":"77313","_id":"56113","language":[{"iso":"eng"}],"quality_controlled":"1","citation":{"ama":"Wohlleben MC, Röder B, Ebel H, Muth L, Sextro W, Eberhard P. Hybrid modeling of multibody systems: Comparison of two discrepancy models for trajectory prediction. <i>PAMM</i>. Published online 2024:e202400027. doi:<a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>","chicago":"Wohlleben, Meike Claudia, Benedict Röder, Henrik Ebel, Lars Muth, Walter Sextro, and Peter Eberhard. “Hybrid Modeling of Multibody Systems: Comparison of Two Discrepancy Models for Trajectory Prediction.” <i>PAMM</i>, 2024, e202400027. <a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>.","ieee":"M. C. Wohlleben, B. Röder, H. Ebel, L. Muth, W. Sextro, and P. Eberhard, “Hybrid modeling of multibody systems: Comparison of two discrepancy models for trajectory prediction,” <i>PAMM</i>, p. e202400027, 2024, doi: <a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>.","apa":"Wohlleben, M. C., Röder, B., Ebel, H., Muth, L., Sextro, W., &#38; Eberhard, P. (2024). Hybrid modeling of multibody systems: Comparison of two discrepancy models for trajectory prediction. <i>PAMM</i>, e202400027. <a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>","short":"M.C. Wohlleben, B. Röder, H. Ebel, L. Muth, W. Sextro, P. Eberhard, PAMM (2024) e202400027.","bibtex":"@article{Wohlleben_Röder_Ebel_Muth_Sextro_Eberhard_2024, title={Hybrid modeling of multibody systems: Comparison of two discrepancy models for trajectory prediction}, DOI={<a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>}, journal={PAMM}, author={Wohlleben, Meike Claudia and Röder, Benedict and Ebel, Henrik and Muth, Lars and Sextro, Walter and Eberhard, Peter}, year={2024}, pages={e202400027} }","mla":"Wohlleben, Meike Claudia, et al. “Hybrid Modeling of Multibody Systems: Comparison of Two Discrepancy Models for Trajectory Prediction.” <i>PAMM</i>, 2024, p. e202400027, doi:<a href=\"https://doi.org/10.1002/pamm.202400027\">https://doi.org/10.1002/pamm.202400027</a>."},"page":"e202400027","year":"2024","date_created":"2024-09-11T13:38:03Z","author":[{"first_name":"Meike Claudia","last_name":"Wohlleben","orcid":"0009-0009-9767-7168","id":"43991","full_name":"Wohlleben, Meike Claudia"},{"first_name":"Benedict","full_name":"Röder, Benedict","last_name":"Röder"},{"first_name":"Henrik","full_name":"Ebel, Henrik","last_name":"Ebel"},{"first_name":"Lars","id":"77313","full_name":"Muth, Lars","last_name":"Muth","orcid":"0000-0002-2938-5616"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"},{"first_name":"Peter","last_name":"Eberhard","full_name":"Eberhard, Peter"}],"date_updated":"2025-02-27T19:54:08Z","doi":"https://doi.org/10.1002/pamm.202400027","title":"Hybrid modeling of multibody systems: Comparison of two discrepancy models for trajectory prediction"},{"year":"2023","citation":{"chicago":"Scheidemann, Claus, Oliver Ernst Caspar Hagedorn, Tobias Hemsel, and Walter Sextro. “Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process,” 2023.","ieee":"C. Scheidemann, O. E. C. Hagedorn, T. Hemsel, and W. Sextro, “Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process,” presented at the International Conference on Functional Materials &#38; Devices 2023 (ICFMD 2023), Jeju, Korea, 2023.","apa":"Scheidemann, C., Hagedorn, O. E. C., Hemsel, T., &#38; Sextro, W. (2023). <i>Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process</i>. International Conference on Functional Materials &#38; Devices 2023 (ICFMD 2023), Jeju, Korea.","ama":"Scheidemann C, Hagedorn OEC, Hemsel T, Sextro W. Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process. In: ; 2023.","short":"C. Scheidemann, O.E.C. Hagedorn, T. Hemsel, W. Sextro, in: 2023.","mla":"Scheidemann, Claus, et al. <i>Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process</i>. 2023.","bibtex":"@inproceedings{Scheidemann_Hagedorn_Hemsel_Sextro_2023, title={Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process}, author={Scheidemann, Claus and Hagedorn, Oliver Ernst Caspar and Hemsel, Tobias and Sextro, Walter}, year={2023} }"},"date_updated":"2024-02-01T16:04:33Z","date_created":"2024-02-01T16:03:41Z","author":[{"last_name":"Scheidemann","full_name":"Scheidemann, Claus","id":"38259","first_name":"Claus"},{"full_name":"Hagedorn, Oliver Ernst Caspar","id":"53321","last_name":"Hagedorn","first_name":"Oliver Ernst Caspar"},{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"}],"title":"Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process","conference":{"location":"Jeju, Korea","end_date":"2023-11-03","start_date":"2023-10-31","name":"International Conference on Functional Materials & Devices 2023 (ICFMD 2023)"},"type":"conference_abstract","status":"public","_id":"51119","user_id":"38259","department":[{"_id":"151"}],"language":[{"iso":"eng"}]}]