[{"type":"journal_article","keyword":["Hydrothermal method","High-power ultrasonic","PZT thin film","Lead-free piezoelectric materials"],"department":[{"_id":"151"}],"date_created":"2019-05-13T09:35:33Z","abstract":[{"lang":"eng","text":"The hydrothermal method enables the production of high-quality piezoelectric materials. In this study, we propose to irradiate the reaction solutions with ultrasonic power during the hydrothermal method to obtain a shorter reaction time and a smooth film surface. A high-pressure reaction container for the ultrasonic transducer was newly developed, and the ultrasonically-assisted hydrothermal method was examined by using this container. The effect of ultrasonic assist on the synthesis of lead-zirconate-titanate (PZT) thin films and (K,Na)NbO$_{3}$ powders was verified. Thicker PZT film, thickness around 10 ${\\mu}$m, could be obtained in one process, and (K,Na)NbO$_{3}$ powder was synthesized in half the previous reaction time."}],"publication":"Journal of Korean Physical Society","issue":"4","doi":"10.3938/jkps.57.918","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:04:19Z","intvolume":"        57","title":"Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis","year":"2010","publication_identifier":{"issn":["1948-5719"]},"author":[{"first_name":"Ryo","last_name":"Ageba","full_name":"Ageba, Ryo"},{"first_name":"Yoichi","last_name":"Kadota","full_name":"Kadota, Yoichi"},{"last_name":"Maeda","first_name":"Takafumi","full_name":"Maeda, Takafumi"},{"first_name":"Norihito","last_name":"Takiguchi","full_name":"Takiguchi, Norihito"},{"full_name":"Morita, Takeshi","last_name":"Morita","first_name":"Takeshi"},{"full_name":"Ishikawa, Mutsuo","last_name":"Ishikawa","first_name":"Mutsuo"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"id":"210","last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias"}],"quality_controlled":"1","citation":{"short":"R. Ageba, Y. Kadota, T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, P. Bornmann, T. Hemsel, Journal of Korean Physical Society 57 (2010) 918–923.","chicago":"Ageba, Ryo, Yoichi Kadota, Takafumi Maeda, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, Peter Bornmann, and Tobias Hemsel. “Ultrasonically-Assisted Hydrothermal Method for Ferroelectric Material Synthesis.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 918–23. <a href=\"https://doi.org/10.3938/jkps.57.918\">https://doi.org/10.3938/jkps.57.918</a>.","apa":"Ageba, R., Kadota, Y., Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., … Hemsel, T. (2010). Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 918–923. <a href=\"https://doi.org/10.3938/jkps.57.918\">https://doi.org/10.3938/jkps.57.918</a>","ieee":"R. Ageba <i>et al.</i>, “Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 918–923, 2010.","ama":"Ageba R, Kadota Y, Maeda T, et al. Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis. <i>Journal of Korean Physical Society</i>. 2010;57(4):918-923. doi:<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>","bibtex":"@article{Ageba_Kadota_Maeda_Takiguchi_Morita_Ishikawa_Bornmann_Hemsel_2010, title={Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Ageba, Ryo and Kadota, Yoichi and Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Bornmann, Peter and Hemsel, Tobias}, year={2010}, pages={918–923} }","mla":"Ageba, Ryo, et al. “Ultrasonically-Assisted Hydrothermal Method for Ferroelectric Material Synthesis.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 918–23, doi:<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>."},"user_id":"55222","volume":57,"page":"918-923","_id":"9743","status":"public"},{"department":[{"_id":"151"}],"keyword":["High-temperature transducer","Hydrothermal method","Lithium-niobate transducer"],"type":"journal_article","date_created":"2019-05-13T09:37:56Z","abstract":[{"text":"Direct ultrasound irradiation is advantageous to increase the efficiency of the hydrothermal method which can be used for the production of piezoelectric thin films and lead free piezoelectric ceramics. To apply ultrasound directly to the process transducer prototypes were developed regarding the boundary conditions of the hydrothermal method. LiNbO$_{3}$ and PIC 181 were proven as feasible materials for high temperature resistant transducers ($\\geq 200^\\circ C$). Resistance of the transducers horn against the corrosive mineralizer was achieved by using Hastelloy C-22. The efficiency of the ultrasound assisted hydrothermal method depends on the generated sound field. Impedance and sound field measurements have shown that the sound field depends on the filling level and the position and design of the transducer.","lang":"eng"}],"issue":"4","publication":"Journal of Korean Physical Society","doi":"10.3938/jkps.57.1122","language":[{"iso":"eng"}],"intvolume":"        57","date_updated":"2022-01-06T07:04:19Z","author":[{"full_name":"Bornmann, Peter","last_name":"Bornmann","first_name":"Peter"},{"id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"},{"last_name":"Littmann","first_name":"Walter","full_name":"Littmann, Walter"},{"first_name":"Ryo","last_name":"Ageba","full_name":"Ageba, Ryo"},{"full_name":"Kadota, Yoishi","first_name":"Yoishi","last_name":"Kadota"},{"last_name":"Morita","first_name":"Takeshi","full_name":"Morita, Takeshi"}],"publication_identifier":{"issn":["1948-5719"]},"title":"Ultrasonic Transducer for the Hydrothermal Method","year":"2010","quality_controlled":"1","citation":{"apa":"Bornmann, P., Hemsel, T., Littmann, W., Ageba, R., Kadota, Y., &#38; Morita, T. (2010). Ultrasonic Transducer for the Hydrothermal Method. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 1122. <a href=\"https://doi.org/10.3938/jkps.57.1122\">https://doi.org/10.3938/jkps.57.1122</a>","ieee":"P. Bornmann, T. Hemsel, W. Littmann, R. Ageba, Y. Kadota, and T. Morita, “Ultrasonic Transducer for the Hydrothermal Method,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, p. 1122, 2010.","chicago":"Bornmann, Peter, Tobias Hemsel, Walter Littmann, Ryo Ageba, Yoishi Kadota, and Takeshi Morita. “Ultrasonic Transducer for the Hydrothermal Method.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 1122. <a href=\"https://doi.org/10.3938/jkps.57.1122\">https://doi.org/10.3938/jkps.57.1122</a>.","short":"P. Bornmann, T. Hemsel, W. Littmann, R. Ageba, Y. Kadota, T. Morita, Journal of Korean Physical Society 57 (2010) 1122.","mla":"Bornmann, Peter, et al. “Ultrasonic Transducer for the Hydrothermal Method.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, p. 1122, doi:<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>.","ama":"Bornmann P, Hemsel T, Littmann W, Ageba R, Kadota Y, Morita T. Ultrasonic Transducer for the Hydrothermal Method. <i>Journal of Korean Physical Society</i>. 2010;57(4):1122. doi:<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>","bibtex":"@article{Bornmann_Hemsel_Littmann_Ageba_Kadota_Morita_2010, title={Ultrasonic Transducer for the Hydrothermal Method}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.1122\">10.3938/jkps.57.1122</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Bornmann, Peter and Hemsel, Tobias and Littmann, Walter and Ageba, Ryo and Kadota, Yoishi and Morita, Takeshi}, year={2010}, pages={1122} }"},"volume":57,"user_id":"55222","_id":"9744","page":"1122","status":"public"},{"type":"journal_article","keyword":["Piezoelectric langevin transducer","Transfer matrix method","Four (six)-pole element description","Pre-stressed bolt"],"department":[{"_id":"151"}],"date_created":"2019-05-13T09:40:42Z","abstract":[{"lang":"eng","text":"In the modeling of piezoelectric Langevin transducers using usual transfer matrix methods, some simplifications have been adopted. This leads to reduction of the model quality. A mixed transfer matrix method is employed in the modeling of Langevin transducers, where the pre-stressed bolt is modeled as a separate four-pole element, which is connected to other elements in parallel. Based on the mixed transfer matrix method, the four (six)-pole element description of the piezoelectric Langevin transducer is built up and the total transfer matrix relation is derived. The resonance frequencies of the transducer are calculated and then measured using the impedance analyzer (HP4192). Experimental result shows that the mixed transfer matrix method has better modeling quality than the usual transfer matrix method for the vibration analysis of piezoelectric Langevin transducers."}],"issue":"4","publication":"Journal of Korean Physical Society","doi":"10.3938/jkps.57.929","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:04:19Z","intvolume":"        57","title":"Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods","year":"2010","author":[{"full_name":"Fu, Bo","first_name":"Bo","last_name":"Fu"},{"first_name":"Chao","last_name":"Li","full_name":"Li, Chao"},{"full_name":"Zhang, Jianming","last_name":"Zhang","first_name":"Jianming"},{"last_name":"Huang","first_name":"Zhenwei","full_name":"Huang, Zhenwei"},{"last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210"}],"publication_identifier":{"issn":["1948-5719"]},"quality_controlled":"1","citation":{"mla":"Fu, Bo, et al. “Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, p. 929, doi:<a href=\"https://doi.org/10.3938/jkps.57.929\">10.3938/jkps.57.929</a>.","apa":"Fu, B., Li, C., Zhang, J., Huang, Z., &#38; Hemsel, T. (2010). Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 929. <a href=\"https://doi.org/10.3938/jkps.57.929\">https://doi.org/10.3938/jkps.57.929</a>","ieee":"B. Fu, C. Li, J. Zhang, Z. Huang, and T. Hemsel, “Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, p. 929, 2010.","chicago":"Fu, Bo, Chao Li, Jianming Zhang, Zhenwei Huang, and Tobias Hemsel. “Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 929. <a href=\"https://doi.org/10.3938/jkps.57.929\">https://doi.org/10.3938/jkps.57.929</a>.","ama":"Fu B, Li C, Zhang J, Huang Z, Hemsel T. Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods. <i>Journal of Korean Physical Society</i>. 2010;57(4):929. doi:<a href=\"https://doi.org/10.3938/jkps.57.929\">10.3938/jkps.57.929</a>","short":"B. Fu, C. Li, J. Zhang, Z. Huang, T. Hemsel, Journal of Korean Physical Society 57 (2010) 929.","bibtex":"@article{Fu_Li_Zhang_Huang_Hemsel_2010, title={Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.929\">10.3938/jkps.57.929</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Fu, Bo and Li, Chao and Zhang, Jianming and Huang, Zhenwei and Hemsel, Tobias}, year={2010}, pages={929} }"},"user_id":"55222","volume":57,"page":"929","_id":"9745","status":"public"},{"publication_identifier":{"issn":["1617-7061"]},"author":[{"full_name":"Hölzl, Johannes Sebastian","first_name":"Johannes Sebastian","last_name":"Hölzl"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"title":"Reibungsdämpfung in ausgedehnten, verschraubten Fügestellen","year":"2010","intvolume":"        10","date_updated":"2022-01-06T07:04:19Z","language":[{"iso":"eng"}],"doi":"10.1002/pamm.201010116","issue":"1","publication":"PAMM","abstract":[{"text":"Bei der Konstruktion von Maschinen ist es oftmals erforderlich, Schwingungen minimal zu halten. Um z.B. die Lebensdauer zu erhöhen, Material einzusparen oder den Geräuschpegel gering zu halten muss oft ein großer Aufwand zur Dämpfung von auftretenden Schwingungen betrieben werden. In vielen technischen Anwendungen werden Einzelteile miteinander verschraubt. Diese Fügestellen können gezielt und mit wenig Aufwand zur Schwingungsdämpfung herangezogen werden. Die Berechnung des dynamischen Verhaltens verschraubter Strukturen stellt immer noch eine Herausforderung dar. Es wurde eine Methode entwickelt, um den eingeschwungenen Zustand elastischer, miteinander verschraubter Körper mit rauen Fügestellen bei periodischer Anregung zu berechnen. Als Basis dienen Finite Elemente Modelle der einzelnen Teile, deren Freiheitsgrade durch modale Kondensation reduziert werden. Unter Anwendung des Verfahrens von Ritz und Galerkin wird eine Näherungslösung für den eingeschwungenen Zustand des nichtlinearen, gekoppelten Systems ermittelt. Abhängig von den Schraubenvorspannkräften sowie den bestimmenden Parametern der Kontaktflächen, Rautiefe und Reibungskoeffizient, kann die Systemantwort berechnet und optimiert werden. Um die Berechnungsmethode zu verifizieren wurden Experimente durchgeführt. Der Vergleich zwischen Messung und Rechnung zeigt eine gute Übereinstimmung. ({\\copyright} 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)","lang":"eng"}],"date_created":"2019-05-13T09:43:54Z","department":[{"_id":"151"}],"type":"journal_article","status":"public","publisher":"WILEY-VCH Verlag","_id":"9747","page":"247-248","volume":10,"user_id":"55222","citation":{"ieee":"J. S. Hölzl and W. Sextro, “Reibungsdämpfung in ausgedehnten, verschraubten Fügestellen,” <i>PAMM</i>, vol. 10, no. 1, pp. 247–248, 2010.","apa":"Hölzl, J. S., &#38; Sextro, W. (2010). Reibungsdämpfung in ausgedehnten, verschraubten Fügestellen. <i>PAMM</i>, <i>10</i>(1), 247–248. <a href=\"https://doi.org/10.1002/pamm.201010116\">https://doi.org/10.1002/pamm.201010116</a>","short":"J.S. Hölzl, W. Sextro, PAMM 10 (2010) 247–248.","chicago":"Hölzl, Johannes Sebastian, and Walter Sextro. “Reibungsdämpfung in Ausgedehnten, Verschraubten Fügestellen.” <i>PAMM</i> 10, no. 1 (2010): 247–48. <a href=\"https://doi.org/10.1002/pamm.201010116\">https://doi.org/10.1002/pamm.201010116</a>.","mla":"Hölzl, Johannes Sebastian, and Walter Sextro. “Reibungsdämpfung in Ausgedehnten, Verschraubten Fügestellen.” <i>PAMM</i>, vol. 10, no. 1, WILEY-VCH Verlag, 2010, pp. 247–48, doi:<a href=\"https://doi.org/10.1002/pamm.201010116\">10.1002/pamm.201010116</a>.","bibtex":"@article{Hölzl_Sextro_2010, title={Reibungsdämpfung in ausgedehnten, verschraubten Fügestellen}, volume={10}, DOI={<a href=\"https://doi.org/10.1002/pamm.201010116\">10.1002/pamm.201010116</a>}, number={1}, journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Hölzl, Johannes Sebastian and Sextro, Walter}, year={2010}, pages={247–248} }","ama":"Hölzl JS, Sextro W. Reibungsdämpfung in ausgedehnten, verschraubten Fügestellen. <i>PAMM</i>. 2010;10(1):247-248. doi:<a href=\"https://doi.org/10.1002/pamm.201010116\">10.1002/pamm.201010116</a>"}},{"page":"929-935","_id":"9748","language":[{"iso":"eng"}],"doi":"10.4271/2010-01-1422","user_id":"55222","title":"Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces","year":"2010","status":"public","author":[{"last_name":" Hölzl","first_name":"Johannes Sebastian","full_name":" Hölzl, Johannes Sebastian"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"date_updated":"2022-01-06T07:04:19Z","date_created":"2019-05-13T09:49:24Z","keyword":["Automotive"],"type":"journal_article","department":[{"_id":"151"}],"publication":"SAE International Journal of Passenger Cars- Mechanical Systems","citation":{"mla":"Hölzl, Johannes Sebastian, and Walter Sextro. “Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces.” <i>SAE International Journal of Passenger Cars- Mechanical Systems</i>, 2010, pp. 929–35, doi:<a href=\"https://doi.org/10.4271/2010-01-1422\">10.4271/2010-01-1422</a>.","ama":"Hölzl JS, Sextro W. Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces. <i>SAE International Journal of Passenger Cars- Mechanical Systems</i>. 2010:929-935. doi:<a href=\"https://doi.org/10.4271/2010-01-1422\">10.4271/2010-01-1422</a>","bibtex":"@article{ Hölzl_Sextro_2010, title={Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces}, DOI={<a href=\"https://doi.org/10.4271/2010-01-1422\">10.4271/2010-01-1422</a>}, journal={SAE International Journal of Passenger Cars- Mechanical Systems}, author={ Hölzl, Johannes Sebastian and Sextro, Walter}, year={2010}, pages={929–935} }","apa":"Hölzl, J. S., &#38; Sextro, W. (2010). Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces. <i>SAE International Journal of Passenger Cars- Mechanical Systems</i>, 929–935. <a href=\"https://doi.org/10.4271/2010-01-1422\">https://doi.org/10.4271/2010-01-1422</a>","ieee":"J. S.  Hölzl and W. Sextro, “Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces,” <i>SAE International Journal of Passenger Cars- Mechanical Systems</i>, pp. 929–935, 2010.","short":"J.S.  Hölzl, W. Sextro, SAE International Journal of Passenger Cars- Mechanical Systems (2010) 929–935.","chicago":"Hölzl, Johannes Sebastian, and Walter Sextro. “Simulation of the Dynamical Behavior of Elastic Multi-Body Systems with Bolted, Rough Contact Interfaces.” <i>SAE International Journal of Passenger Cars- Mechanical Systems</i>, 2010, 929–35. <a href=\"https://doi.org/10.4271/2010-01-1422\">https://doi.org/10.4271/2010-01-1422</a>."},"quality_controlled":"1","abstract":[{"lang":"eng","text":"For many technical applications it is necessary to avoid or to reduce vibrations. Factors benefiting from vibration reduction are for example the durability of the application, which is increased, as well as cost expenses and the level of noise, which are both decreased. Rough, bolted interfaces are common in most machines and can be used as damping devices with some effort. Perhaps in future such contact surfaces could be used as damping devices at the interfaces of an automotive engine or exhaust system. Nevertheless it is difficult to predict the effect of a change in contact interface parameters on the dynamic behavior of the entire mechanical system. Therefore a method for calculating the steady state behavior of elastic multi-body systems was developed. The basis of this method is a finite element model of each contacting unit. On each model a modal reduction is applied in order to reduce the degrees of freedom. The method of Ritz and Galerkin is used to calculate the frequency response functions of the reduced system including contact. This method allows the calculation of the steady-state behavior of elastic multi-body systems with rough, bolted contact interfaces, by taking the pre-stress of the bolts, the roughness and the friction coefficient of the contacting surfaces as parameters. In order to verify calculated results, a test stand was built. The comparison of calculated and experimental results showed a satisfying correlation."}]},{"quality_controlled":"1","citation":{"short":"T. Hemsel, E.G. Lierk, W. Littmann, T. Morita, Journal of Korean Physical Society 57 (2010) 933–937.","chicago":"Hemsel, Tobias, Ernst Günther Lierk, Walter Littmann, and Takeshi Morita. “Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 933–37. <a href=\"https://doi.org/10.3938/jkps.57.933\">https://doi.org/10.3938/jkps.57.933</a>.","apa":"Hemsel, T., Lierk, E. G., Littmann, W., &#38; Morita, T. (2010). Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 933–937. <a href=\"https://doi.org/10.3938/jkps.57.933\">https://doi.org/10.3938/jkps.57.933</a>","ieee":"T. Hemsel, E. G. Lierk, W. Littmann, and T. Morita, “Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 933–937, 2010.","ama":"Hemsel T, Lierk EG, Littmann W, Morita T. Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers. <i>Journal of Korean Physical Society</i>. 2010;57(4):933-937. doi:<a href=\"https://doi.org/10.3938/jkps.57.933\">10.3938/jkps.57.933</a>","bibtex":"@article{Hemsel_Lierk_Littmann_Morita_2010, title={Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.933\">10.3938/jkps.57.933</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Hemsel, Tobias and Lierk, Ernst Günther and Littmann, Walter and Morita, Takeshi}, year={2010}, pages={933–937} }","mla":"Hemsel, Tobias, et al. “Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 933–37, doi:<a href=\"https://doi.org/10.3938/jkps.57.933\">10.3938/jkps.57.933</a>."},"volume":57,"user_id":"55222","_id":"9749","page":"933-937","status":"public","department":[{"_id":"151"}],"type":"journal_article","keyword":["Bolted Langevin transducer","Optimum placement of piezoelectric ceramics"],"date_created":"2019-05-13T09:56:22Z","abstract":[{"text":"Piezoelectric materials find wide application in technical systems. Most often, a combination of piezoelectric and other materials is advantageous. The position and the amount of the piezoelectric material within the overall system depends on various aspects like maximum mechanical output to the load, maximum electromechanical efficiency of the system, maximum utilization of the piezoelectric material, minimum self-heating of the piezoelectric material, and controllability of the system, which might be key aspects for the optimisation of the system design. For a composite longitudinal vibrator (bolted Langevin transducer), which is a base for many technical applications, this contribution shows in detail, how above mentioned aspects depend on the position and volume of the piezoelectric material related to the mode shape.","lang":"eng"}],"publication":"Journal of Korean Physical Society","issue":"4","doi":"10.3938/jkps.57.933","language":[{"iso":"eng"}],"intvolume":"        57","date_updated":"2022-01-06T07:04:19Z","author":[{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"last_name":"Lierk","first_name":"Ernst Günther","full_name":"Lierk, Ernst Günther"},{"last_name":"Littmann","first_name":"Walter","full_name":"Littmann, Walter"},{"first_name":"Takeshi","last_name":"Morita","full_name":"Morita, Takeshi"}],"publication_identifier":{"issn":["1948-5719"]},"title":"Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers","year":"2010"},{"citation":{"ama":"Hess D, Hüfner T, Hesse T, Sondermann-Wölke C, Sattel T. Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen. <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010.”</i> 2010.","bibtex":"@article{Hess_Hüfner_Hesse_Sondermann-Wölke_Sattel_2010, title={Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen}, journal={Internationales Mechatronik-Kolloquium “Mechatronik 2010”}, author={Hess, D. and Hüfner, Thorsten and Hesse, Tobias and Sondermann-Wölke, Christoph and Sattel, Thomas}, year={2010} }","mla":"Hess, D., et al. “Intelligente Mechatronische Systeme Zur Automatisierten Fahrzeugführung in Fahrerassistenzsystemen.” <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010,”</i> 2010.","chicago":"Hess, D., Thorsten Hüfner, Tobias Hesse, Christoph Sondermann-Wölke, and Thomas Sattel. “Intelligente Mechatronische Systeme Zur Automatisierten Fahrzeugführung in Fahrerassistenzsystemen.” <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010,”</i> 2010.","short":"D. Hess, T. Hüfner, T. Hesse, C. Sondermann-Wölke, T. Sattel, Internationales Mechatronik-Kolloquium “Mechatronik 2010” (2010).","apa":"Hess, D., Hüfner, T., Hesse, T., Sondermann-Wölke, C., &#38; Sattel, T. (2010). Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen. <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010.”</i>","ieee":"D. Hess, T. Hüfner, T. Hesse, C. Sondermann-Wölke, and T. Sattel, “Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen,” <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010,”</i> 2010."},"publication":"Internationales Mechatronik-Kolloquium \"Mechatronik 2010\"","department":[{"_id":"151"}],"type":"journal_article","date_created":"2019-05-13T09:58:41Z","date_updated":"2022-01-06T07:04:19Z","author":[{"full_name":"Hess, D.","first_name":"D.","last_name":"Hess"},{"full_name":"Hüfner, Thorsten","first_name":"Thorsten","last_name":"Hüfner"},{"full_name":"Hesse, Tobias","last_name":"Hesse","first_name":"Tobias"},{"last_name":"Sondermann-Wölke","first_name":"Christoph","full_name":"Sondermann-Wölke, Christoph"},{"last_name":"Sattel","first_name":"Thomas","full_name":"Sattel, Thomas"}],"year":"2010","status":"public","title":"Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen","user_id":"55222","_id":"9750","language":[{"iso":"eng"}]},{"quality_controlled":"1","citation":{"ama":"Hunstig M, Hemsel T. Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors. <i>Journal of Korean Physical Society</i>. 2010;57(4):938-941. doi:<a href=\"https://doi.org/10.3938/jkps.57.938\">10.3938/jkps.57.938</a>","short":"M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 938–941.","chicago":"Hunstig, Matthias, and Tobias Hemsel. “Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 938–41. <a href=\"https://doi.org/10.3938/jkps.57.938\">https://doi.org/10.3938/jkps.57.938</a>.","bibtex":"@article{Hunstig_Hemsel_2010, title={Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.938\">10.3938/jkps.57.938</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Hunstig, Matthias and Hemsel, Tobias}, year={2010}, pages={938–941} }","apa":"Hunstig, M., &#38; Hemsel, T. (2010). Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 938–941. <a href=\"https://doi.org/10.3938/jkps.57.938\">https://doi.org/10.3938/jkps.57.938</a>","mla":"Hunstig, Matthias, and Tobias Hemsel. “Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 938–41, doi:<a href=\"https://doi.org/10.3938/jkps.57.938\">10.3938/jkps.57.938</a>.","ieee":"M. Hunstig and T. Hemsel, “Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 938–941, 2010."},"volume":57,"user_id":"55222","_id":"9751","page":"938-941","status":"public","department":[{"_id":"151"}],"type":"journal_article","date_created":"2019-05-13T10:03:06Z","abstract":[{"lang":"eng","text":"Piezoelectric inertia motors have a simple construction and are controlled by a single driving signal. This allows for miniaturization and low cost production. One of the main questions to be answered during the design process of a piezoelectric inertia motor is which electrical excitation signal yields optimum motor characteristics. Three signals and their variants are widely used in literature: sawtooth, parabolic and cycloidic signals. It can be shown that neither of these can drive the motor at its maximum possible velocity in non-resonant operation. Within this paper we propose to use a rigid body model of a simple inertia motor to predict the motor characteristics depending on the movement pattern of the driving element. Advantages and disadvantages of three different drive signals that maximize the motor velocity are discussed."}],"issue":"4","publication":"Journal of Korean Physical Society","doi":"10.3938/jkps.57.938","language":[{"iso":"eng"}],"intvolume":"        57","date_updated":"2022-01-06T07:04:19Z","author":[{"last_name":"Hunstig","first_name":"Matthias","full_name":"Hunstig, Matthias"},{"full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias","id":"210"}],"publication_identifier":{"issn":["1948-5719"]},"year":"2010","title":"Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors"},{"language":[{"iso":"eng"}],"doi":"10.3938/jkps.57.952","author":[{"last_name":"Hunstig","first_name":"Matthias","full_name":"Hunstig, Matthias"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"}],"publication_identifier":{"issn":["1948-5719"]},"title":"Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor","year":"2010","intvolume":"        57","date_updated":"2022-01-06T07:04:19Z","date_created":"2019-05-13T10:04:13Z","department":[{"_id":"151"}],"type":"journal_article","issue":"4","publication":"Journal of Korean Physical Society","abstract":[{"text":"Piezoelectric inertia motors make use of the inertia of a slider to drive the slider by friction contact in a series of small steps which are generally composed of a stick phase and a slip phase. If the best electrical drive signal for the piezoelectric actuator in an inertia motor is to be determined, its dynamical behaviour must be known. A classic dynamic lumped parameter model for piezoelectric actuators is valid only in resonance and, therefore, is not suitable for modelling the actuator in an inertia motor. A reduced dynamic model is used instead. Its parameters are identified using a step response measurement. This model is used to predict the movement of the actuator in response to a velocity-optimized signal introduced in a separate contribution. Results show that the model cannot represent the dynamical characteristics of the actuator completely. For determining voltage signals that let piezoelectric actuators follow a calculated movement pattern exactly, the model can, therefore, only be used with limitations.","lang":"eng"}],"_id":"9752","page":"952-954","volume":57,"user_id":"55222","status":"public","citation":{"chicago":"Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 952–54. <a href=\"https://doi.org/10.3938/jkps.57.952\">https://doi.org/10.3938/jkps.57.952</a>.","ama":"Hunstig M, Hemsel T. Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor. <i>Journal of Korean Physical Society</i>. 2010;57(4):952-954. doi:<a href=\"https://doi.org/10.3938/jkps.57.952\">10.3938/jkps.57.952</a>","short":"M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 952–954.","bibtex":"@article{Hunstig_Hemsel_2010, title={Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.952\">10.3938/jkps.57.952</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Hunstig, Matthias and Hemsel, Tobias}, year={2010}, pages={952–954} }","mla":"Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 952–54, doi:<a href=\"https://doi.org/10.3938/jkps.57.952\">10.3938/jkps.57.952</a>.","apa":"Hunstig, M., &#38; Hemsel, T. (2010). Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 952–954. <a href=\"https://doi.org/10.3938/jkps.57.952\">https://doi.org/10.3938/jkps.57.952</a>","ieee":"M. Hunstig and T. Hemsel, “Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 952–954, 2010."},"quality_controlled":"1"},{"place":"Paderborn","citation":{"ama":"Hunstig M, Hemsel T, Sextro W. Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren. In: Gausemeier J, Rammig F, Schäfer W, Trächtler A, eds. <i>7. Paderborner Workshop Entwurf Mechatronischer Systeme</i>. Vol 272. HNI-Verlagsschriftenreihe. Paderborn: Heinz Nixdorf Institut, Universität Paderborn; 2010:129-141.","bibtex":"@inproceedings{Hunstig_Hemsel_Sextro_2010, place={Paderborn}, series={HNI-Verlagsschriftenreihe}, title={Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren}, volume={272}, booktitle={7. Paderborner Workshop Entwurf mechatronischer Systeme}, publisher={Heinz Nixdorf Institut, Universität Paderborn}, author={Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter}, editor={Gausemeier, Jürgen and Rammig, Franz and Schäfer, Wilhelm and Trächtler, AnsgarEditors}, year={2010}, pages={129–141}, collection={HNI-Verlagsschriftenreihe} }","mla":"Hunstig, Matthias, et al. “Anregungskonzepte Und Modellierung Piezoelektrischer Trägheitsmotoren.” <i>7. Paderborner Workshop Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier et al., vol. 272, Heinz Nixdorf Institut, Universität Paderborn, 2010, pp. 129–41.","short":"M. Hunstig, T. Hemsel, W. Sextro, in: J. Gausemeier, F. Rammig, W. Schäfer, A. Trächtler (Eds.), 7. Paderborner Workshop Entwurf Mechatronischer Systeme, Heinz Nixdorf Institut, Universität Paderborn, Paderborn, 2010, pp. 129–141.","chicago":"Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Anregungskonzepte Und Modellierung Piezoelektrischer Trägheitsmotoren.” In <i>7. Paderborner Workshop Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier, Franz Rammig, Wilhelm Schäfer, and Ansgar Trächtler, 272:129–41. HNI-Verlagsschriftenreihe. Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2010.","apa":"Hunstig, M., Hemsel, T., &#38; Sextro, W. (2010). Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren. In J. Gausemeier, F. Rammig, W. Schäfer, &#38; A. Trächtler (Eds.), <i>7. Paderborner Workshop Entwurf mechatronischer Systeme</i> (Vol. 272, pp. 129–141). Paderborn: Heinz Nixdorf Institut, Universität Paderborn.","ieee":"M. Hunstig, T. Hemsel, and W. Sextro, “Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren,” in <i>7. Paderborner Workshop Entwurf mechatronischer Systeme</i>, 2010, vol. 272, pp. 129–141."},"volume":272,"editor":[{"last_name":"Gausemeier","first_name":"Jürgen","full_name":"Gausemeier, Jürgen"},{"first_name":"Franz","last_name":"Rammig","full_name":"Rammig, Franz"},{"first_name":"Wilhelm","last_name":"Schäfer","full_name":"Schäfer, Wilhelm"},{"full_name":"Trächtler, Ansgar","first_name":"Ansgar","last_name":"Trächtler"}],"user_id":"55222","_id":"9753","publisher":"Heinz Nixdorf Institut, Universität Paderborn","page":"129-141","status":"public","department":[{"_id":"151"}],"type":"conference","keyword":["Piezoelektrischer Trägheitsmotoren"],"date_created":"2019-05-13T10:05:14Z","abstract":[{"lang":"eng","text":"Piezoelektrische Trägheitsmotoren nutzen die Trägheit einer bewegten Masse, um diese in kleinen Schritten durch abwechselnde Haft- und Gleitphasen voranzutreiben. Eine Kernfrage bei der Entwicklung eines piezoelektrischen Trägheitsmotors ist, welches elektrische Ansteuersignal für das gewünschte Motorverhalten optimal ist. Das elektrische Signal führt zu einer Bewegung des piezoelektrischen Aktors und damit der Antriebsstange, die den reibschlüssigen Vortrieb bewirkt. Entsprechend wird diese Fragestellung in zwei Teilen untersucht: Anhand eines Starrkörpermodells werden zunächst Bewegungsverläufe für die Antriebsstange ermittelt, mit denen die maximale Geschwindigkeit erreicht wird. Dabei werden drei Antriebsmodi identifiziert. Mit allen kann eine höhere Geschwindigkeit als mit der heute häufig verwendeten Sägezahnanregung erreicht werden. Anschließend wird ein einfaches dynamisches Modell eines piezoelektrischen Aktors genutzt, um die notwendigen elektrischen Ansteuersignale für die verschiedenen Antriebsmodi zu bestimmen. Es zeigt sich, dass das gewählte einfache Modell hierzu nur bedingt geeignet ist."}],"publication":"7. Paderborner Workshop Entwurf mechatronischer Systeme","language":[{"iso":"eng"}],"series_title":"HNI-Verlagsschriftenreihe","intvolume":"       272","date_updated":"2022-01-06T07:04:19Z","author":[{"full_name":"Hunstig, Matthias","last_name":"Hunstig","first_name":"Matthias"},{"full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias","id":"210"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"publication_identifier":{"issn":["0924-4247"]},"year":"2010","title":"Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren"},{"user_id":"55222","page":"657-661","language":[{"iso":"eng"}],"_id":"9754","date_updated":"2022-01-06T07:04:19Z","year":"2010","status":"public","title":"Improving the Performance of Piezoelectric Inertia Motors","author":[{"last_name":"Hunstig","first_name":"Matthias","full_name":"Hunstig, Matthias"},{"full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel","id":"210"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"publication_identifier":{"issn":["0924-4247"]},"type":"conference","department":[{"_id":"151"}],"date_created":"2019-05-13T10:10:31Z","quality_controlled":"1","abstract":[{"lang":"eng","text":"A model based design approach for improved piezoelectric inertia motors is presented. Three velocityoptimized movement patterns for the driving body have been derived. The influence of the motor parameters and the process of designing an application specific motor with maximum velocity are shown. A simple dynamic model of the piezoelectric actuator is used to calculate the voltage signal for achieving the desired movement pattern. Observed distortions of the optimum pattern, their influence on the motion of the driven body and different methods to reduce them are discussed."}],"publication":"ACTUATOR 2010 Conference Proceedings","citation":{"short":"M. Hunstig, T. Hemsel, W. Sextro, in: ACTUATOR 2010 Conference Proceedings, 2010, pp. 657–661.","chicago":"Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Improving the Performance of Piezoelectric Inertia Motors.” In <i>ACTUATOR 2010 Conference Proceedings</i>, 657–61, 2010.","ieee":"M. Hunstig, T. Hemsel, and W. Sextro, “Improving the Performance of Piezoelectric Inertia Motors,” in <i>ACTUATOR 2010 Conference Proceedings</i>, 2010, pp. 657–661.","apa":"Hunstig, M., Hemsel, T., &#38; Sextro, W. (2010). Improving the Performance of Piezoelectric Inertia Motors. In <i>ACTUATOR 2010 Conference Proceedings</i> (pp. 657–661).","bibtex":"@inproceedings{Hunstig_Hemsel_Sextro_2010, title={Improving the Performance of Piezoelectric Inertia Motors}, booktitle={ACTUATOR 2010 Conference Proceedings}, author={Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter}, year={2010}, pages={657–661} }","ama":"Hunstig M, Hemsel T, Sextro W. Improving the Performance of Piezoelectric Inertia Motors. In: <i>ACTUATOR 2010 Conference Proceedings</i>. ; 2010:657-661.","mla":"Hunstig, Matthias, et al. “Improving the Performance of Piezoelectric Inertia Motors.” <i>ACTUATOR 2010 Conference Proceedings</i>, 2010, pp. 657–61."}},{"department":[{"_id":"151"}],"type":"conference","place":"Wien, Österreich","date_created":"2019-05-13T10:11:42Z","citation":{"chicago":"Kraft , Verena, C. Bauch, M. Nückel, and Tobias Hemsel. “Konzeption Und Aufbau Eines Langzeitforschungsstandes Zur Lichttechnischen Charakterisierung von Organischen Leuchtdioden (OLEDs).” In <i>19. Gemeinschaftstagung LICHT 2010</i>. Wien, Österreich, 2010.","short":"V. Kraft , C. Bauch, M. Nückel, T. Hemsel, in: 19. Gemeinschaftstagung LICHT 2010, Wien, Österreich, 2010.","ieee":"V. Kraft , C. Bauch, M. Nückel, and T. Hemsel, “Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs),” in <i>19. Gemeinschaftstagung LICHT 2010</i>, 2010.","apa":"Kraft , V., Bauch, C., Nückel, M., &#38; Hemsel, T. (2010). Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs). In <i>19. Gemeinschaftstagung LICHT 2010</i>. Wien, Österreich.","bibtex":"@inproceedings{Kraft _Bauch_Nückel_Hemsel_2010, place={Wien, Österreich}, title={Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs)}, booktitle={19. Gemeinschaftstagung LICHT 2010}, author={Kraft , Verena and Bauch, C. and Nückel, M. and Hemsel, Tobias}, year={2010} }","ama":"Kraft  V, Bauch C, Nückel M, Hemsel T. Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs). In: <i>19. Gemeinschaftstagung LICHT 2010</i>. Wien, Österreich; 2010.","mla":"Kraft , Verena, et al. “Konzeption Und Aufbau Eines Langzeitforschungsstandes Zur Lichttechnischen Charakterisierung von Organischen Leuchtdioden (OLEDs).” <i>19. Gemeinschaftstagung LICHT 2010</i>, 2010."},"publication":"19. Gemeinschaftstagung LICHT 2010","popular_science":"1","user_id":"55222","_id":"9755","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:04:19Z","author":[{"full_name":"Kraft , Verena","last_name":"Kraft ","first_name":"Verena"},{"first_name":"C.","last_name":"Bauch","full_name":"Bauch, C."},{"last_name":"Nückel","first_name":"M.","full_name":"Nückel, M."},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"}],"status":"public","title":"Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs)","year":"2010"},{"citation":{"short":"E.-G. Lierke, W. Littmann, T. Hemsel, Veröffentlichung Der Universität Paderborn (2010).","chicago":"Lierke, Ernst-Günter, Walter Littmann, and Tobias Hemsel. “Zur Theorie Der Piezoelektrischen Ultraschallverbundschwinger Mit Praktischen Schlussfolgerungen Für Den Entwicklungsingenieur.” <i>Veröffentlichung Der Universität Paderborn</i>, 2010.","ieee":"E.-G. Lierke, W. Littmann, and T. Hemsel, “Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur,” <i>Veröffentlichung der Universität Paderborn</i>, 2010.","apa":"Lierke, E.-G., Littmann, W., &#38; Hemsel, T. (2010). Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur. <i>Veröffentlichung Der Universität Paderborn</i>.","bibtex":"@article{Lierke_Littmann_Hemsel_2010, title={Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur}, journal={Veröffentlichung der Universität Paderborn}, author={Lierke, Ernst-Günter and Littmann, Walter and Hemsel, Tobias}, year={2010} }","ama":"Lierke E-G, Littmann W, Hemsel T. Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur. <i>Veröffentlichung der Universität Paderborn</i>. 2010.","mla":"Lierke, Ernst-Günter, et al. “Zur Theorie Der Piezoelektrischen Ultraschallverbundschwinger Mit Praktischen Schlussfolgerungen Für Den Entwicklungsingenieur.” <i>Veröffentlichung Der Universität Paderborn</i>, 2010."},"publication":"Veröffentlichung der Universität Paderborn","abstract":[{"lang":"eng","text":"Dieser Beitrag fasst die bekannten analytischen Berechnungsmethoden für piezoelektrische Ultraschallverbundschwinger zusammen und gibt anhand typischer Beispiele Anleitungen zur Lösung theoretischer und technischer Fragen bei deren Entwicklung. Zunächst werden die passiven, in der Regel metallischen Komponenten von Verbundschwingern als Stab- oder Plattensysteme mit homogen verteilten Feder-, Masse und Dämpfungseigenschaften beschrieben. Hier breitet sich die Schwingungsenergie in Form stehender und fortschreitender Wellen zum akustischen Verbraucher hin aus. Es folgt eine gleichwertige und schaltungstreue Darstellung durch elektrische oder mechanische Vierpole, die für den Entwicklungsingenieur leichter zu handhaben sind und in Netzwerken direkt mit Masons Ersatzschaltung des piezoelektrischen Wandlers gekoppelt werden können. Danach werden die wichtigsten, messtechnisch zugänglichen Parameter anhand eines in Resonanznähe zulässigen Ersatzmodells mit konzentrierten elektrischen bzw. mechanischen Komponenten definiert. Als Schwerpunkt wird anschließend deren analytische Berechnung und messtechnische Verifizierung an typischen Beispielen demonstriert. Es folgen wichtige technische Informationen über Frequenzkorrekturen, Schallgeschwindigkeitsdispersion, Leistungs- und Belastbarkeitsgrenzen der Komponenten und andere wertvolle praktische Hinweise."}],"date_created":"2019-05-13T10:14:21Z","department":[{"_id":"151"}],"type":"journal_article","author":[{"last_name":"Lierke","first_name":"Ernst-Günter","full_name":"Lierke, Ernst-Günter"},{"last_name":"Littmann","first_name":"Walter","full_name":"Littmann, Walter"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"}],"publication_identifier":{"issn":["1948-5719"]},"status":"public","title":"Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur","year":"2010","date_updated":"2022-01-06T07:04:19Z","_id":"9756","language":[{"iso":"eng"}],"user_id":"55222"},{"user_id":"55222","language":[{"iso":"eng"}],"_id":"9757","date_updated":"2022-01-06T07:04:19Z","title":"The experimental research of piezoelectric actuator with two vectors of polarization direction","year":"2010","status":"public","publication_identifier":{"issn":["1948-5719"]},"author":[{"first_name":"Raimundas","last_name":"Lucinskis","full_name":"Lucinskis, Raimundas"},{"first_name":"Dalius","last_name":"Mazeika","full_name":"Mazeika, Dalius"},{"full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel","id":"210"},{"full_name":"Bansevicius, Ramutis","first_name":"Ramutis","last_name":"Bansevicius"}],"type":"journal_article","department":[{"_id":"151"}],"date_created":"2019-05-13T10:18:38Z","quality_controlled":"1","publication":"MECHANIKA","citation":{"ama":"Lucinskis R, Mazeika D, Hemsel T, Bansevicius R. The experimental research of piezoelectric actuator with two vectors of polarization direction. <i>MECHANIKA</i>. 2010.","bibtex":"@article{Lucinskis_Mazeika_Hemsel_Bansevicius_2010, title={The experimental research of piezoelectric actuator with two vectors of polarization direction}, journal={MECHANIKA}, author={Lucinskis, Raimundas and Mazeika, Dalius and Hemsel, Tobias and Bansevicius, Ramutis}, year={2010} }","mla":"Lucinskis, Raimundas, et al. “The Experimental Research of Piezoelectric Actuator with Two Vectors of Polarization Direction.” <i>MECHANIKA</i>, 2010.","short":"R. Lucinskis, D. Mazeika, T. Hemsel, R. Bansevicius, MECHANIKA (2010).","chicago":"Lucinskis, Raimundas, Dalius Mazeika, Tobias Hemsel, and Ramutis Bansevicius. “The Experimental Research of Piezoelectric Actuator with Two Vectors of Polarization Direction.” <i>MECHANIKA</i>, 2010.","apa":"Lucinskis, R., Mazeika, D., Hemsel, T., &#38; Bansevicius, R. (2010). The experimental research of piezoelectric actuator with two vectors of polarization direction. <i>MECHANIKA</i>.","ieee":"R. Lucinskis, D. Mazeika, T. Hemsel, and R. Bansevicius, “The experimental research of piezoelectric actuator with two vectors of polarization direction,” <i>MECHANIKA</i>, 2010."}},{"date_created":"2019-05-13T10:19:43Z","department":[{"_id":"151"}],"keyword":["Lead-free piezoelectric material","KNN","Hydrothermal method"],"type":"journal_article","issue":"4","publication":"Journal of Korean Physical Society","abstract":[{"text":"As a lead-free piezoelectric ceramics, (K,Na)NbO$_{3}$ is a promising material because of its good piezoelectric properties. In this study, (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics were synthesized from a KNbO$_{3}$ and NaNbO$_{3}$ mixture powder prepared by the hydrothermal reaction. The hydrothermal reaction enables the production of high quality powder for the ceramics fabrication process. To obtain (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics, these two powders KNbO$_{3}$ and NaNbO$_{3}$ were mixed and then sintered together. X-Ray diffraction analysis revealed that the solid solution ceramics (K$_{1-x}$Na$_{x}$)NbO$_{3}$ was produced by the sintering process. The K/Na ratio in (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics was optimized for the best piezoelectric properties. The optimized forms was (K$_{0.48}$Na$_{0.52}$)NbO$_{3}$, which showed the following piezoelectric properties; k$_{33}$=0.56, d$_{33}$=114pC/N. In addition, the ferroelectric properties, P$_{r}$=7.72mC/cm$^{2}$, E$_{c}$=857V/mm, and the Curie temperature T$_{c}$=420$_{o}$C were also measured.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.3938/jkps.57.924","publication_identifier":{"issn":["1948-5719"]},"author":[{"full_name":"Maeda, Takafumi","first_name":"Takafumi","last_name":"Maeda"},{"first_name":"Norihito","last_name":"Takiguchi","full_name":"Takiguchi, Norihito"},{"last_name":"Morita","first_name":"Takeshi","full_name":"Morita, Takeshi"},{"last_name":"Ishikawa","first_name":"Mutsuo","full_name":"Ishikawa, Mutsuo"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"}],"title":"Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics","year":"2010","intvolume":"        57","date_updated":"2022-01-06T07:04:19Z","citation":{"short":"T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, T. Hemsel, Journal of Korean Physical Society 57 (2010) 924–928.","chicago":"Maeda, Takafumi, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, and Tobias Hemsel. “Hydrothermal (K1-XNax)NbO3 Lead-Free Piezoelectric Ceramics.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 924–28. <a href=\"https://doi.org/10.3938/jkps.57.924\">https://doi.org/10.3938/jkps.57.924</a>.","apa":"Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., &#38; Hemsel, T. (2010). Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 924–928. <a href=\"https://doi.org/10.3938/jkps.57.924\">https://doi.org/10.3938/jkps.57.924</a>","ieee":"T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, and T. Hemsel, “Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 924–928, 2010.","ama":"Maeda T, Takiguchi N, Morita T, Ishikawa M, Hemsel T. Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics. <i>Journal of Korean Physical Society</i>. 2010;57(4):924-928. doi:<a href=\"https://doi.org/10.3938/jkps.57.924\">10.3938/jkps.57.924</a>","bibtex":"@article{Maeda_Takiguchi_Morita_Ishikawa_Hemsel_2010, title={Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.924\">10.3938/jkps.57.924</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias}, year={2010}, pages={924–928} }","mla":"Maeda, Takafumi, et al. “Hydrothermal (K1-XNax)NbO3 Lead-Free Piezoelectric Ceramics.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 924–28, doi:<a href=\"https://doi.org/10.3938/jkps.57.924\">10.3938/jkps.57.924</a>."},"quality_controlled":"1","_id":"9758","page":"924-928","volume":57,"user_id":"55222","status":"public"},{"status":"public","user_id":"55222","volume":64,"page":"125-128","_id":"9759","quality_controlled":"1","citation":{"ieee":"T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, and T. Hemsel, “(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders,” <i>Materials Letters</i>, vol. 64, no. 2, pp. 125–128, 2010.","apa":"Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., &#38; Hemsel, T. (2010). (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders. <i>Materials Letters</i>, <i>64</i>(2), 125–128. <a href=\"https://doi.org/10.1016/j.matlet.2009.10.012\">https://doi.org/10.1016/j.matlet.2009.10.012</a>","chicago":"Maeda, Takafumi, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, and Tobias Hemsel. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized from Hydrothermal Powders.” <i>Materials Letters</i> 64, no. 2 (2010): 125–28. <a href=\"https://doi.org/10.1016/j.matlet.2009.10.012\">https://doi.org/10.1016/j.matlet.2009.10.012</a>.","short":"T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, T. Hemsel, Materials Letters 64 (2010) 125–128.","mla":"Maeda, Takafumi, et al. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized from Hydrothermal Powders.” <i>Materials Letters</i>, vol. 64, no. 2, 2010, pp. 125–28, doi:<a href=\"https://doi.org/10.1016/j.matlet.2009.10.012\">10.1016/j.matlet.2009.10.012</a>.","bibtex":"@article{Maeda_Takiguchi_Morita_Ishikawa_Hemsel_2010, title={(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders}, volume={64}, DOI={<a href=\"https://doi.org/10.1016/j.matlet.2009.10.012\">10.1016/j.matlet.2009.10.012</a>}, number={2}, journal={Materials Letters}, author={Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias}, year={2010}, pages={125–128} }","ama":"Maeda T, Takiguchi N, Morita T, Ishikawa M, Hemsel T. (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders. <i>Materials Letters</i>. 2010;64(2):125-128. doi:<a href=\"https://doi.org/10.1016/j.matlet.2009.10.012\">10.1016/j.matlet.2009.10.012</a>"},"date_updated":"2022-01-06T07:04:19Z","intvolume":"        64","year":"2010","title":"(K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders","publication_identifier":{"issn":["1948-5719"]},"author":[{"full_name":"Maeda, Takafumi","last_name":"Maeda","first_name":"Takafumi"},{"full_name":"Takiguchi, Norihito","first_name":"Norihito","last_name":"Takiguchi"},{"full_name":"Morita, Takeshi","last_name":"Morita","first_name":"Takeshi"},{"last_name":"Ishikawa","first_name":"Mutsuo","full_name":"Ishikawa, Mutsuo"},{"full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias","id":"210"}],"doi":"10.1016/j.matlet.2009.10.012","language":[{"iso":"eng"}],"abstract":[{"text":"Among various lead-free piezoelectric materials, (K,Na)NbO$_{3}$ is a very promising candidate. In this study, (K,Na)NbO$_{3}$ ceramics were sintered from mixed (K,Na)NbO$_{3}$ and NaNbO$_{3}$ powders prepared by hydrothermal reaction. These two powders were mixed with distilled water in a KNbO$_{3}$/NaNbO$_{3}$ molar ratio of 1. After sintering the mixed powder, the solid solution of (Na,K)NbO$_{3}$ ceramics was obtained. The electrical properties such as the electromechanical coupling factors k$_{p}$ and k$_{33}$, the mechanical quality factor, Q$_{m}$, and the piezoelectric constant d$_{33}$ of the sintered (K,Na)NbO$_{3}$ ceramics were 0.32, 0.48, 71 (radial mode), 118 ((33)mode), and 107 pC/N, respectively.","lang":"eng"}],"publication":"Materials Letters","issue":"2","keyword":["Lead-free piezoelectric material","(K","Na)NbO$_{3}$ ceramics","Sintering solid solution","Piezoelectric properties"],"type":"journal_article","department":[{"_id":"151"}],"date_created":"2019-05-13T10:21:17Z"},{"date_updated":"2022-01-06T07:04:19Z","author":[{"first_name":"Christoph","last_name":"Sondermann-Wölke","full_name":"Sondermann-Wölke, Christoph"},{"last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"},{"full_name":"Gausemeier, Jürgen","last_name":"Gausemeier","first_name":"Jürgen"},{"full_name":"Pook, Sebastian","first_name":"Sebastian","last_name":"Pook"}],"title":"Guideline for the dependability-oriented design of self-optimizing systems","year":"2010","status":"public","user_id":"55222","doi":"10.1109/INDIN.2010.5549490","_id":"9760","language":[{"iso":"eng"}],"page":"739 -744","quality_controlled":"1","abstract":[{"lang":"eng","text":"Self-optimizing systems are able to adapt their behavior autonomously according to their current self-determined objectives. Unforeseen influences could lead to dependability-critical behavior of the system. Methods are required which secure self-optimizing systems during operation. These methods to increase the dependability of the system should already be taken into consideration in the design process. This paper presents a guideline for the dependability-oriented design of self-optimizing systems, which integrates established classical methods like failure mode and effects analysis as well as methods based on self-optimization. On the one hand self-optimization is used to increase the dependability of the system by integrating objectives like safety, availability, and reliability to the objectives of the system. On the other hand methods are required to ensure the self-optimization itself. As basis for this guideline serves the principle solution of the system. The six phases of the guideline extend the design process and lead to an enhanced principle solution. Additionally, the guideline illustrates phases to implement and validate the self-optimizing system. The proposed guideline is applied to an innovative rail-bound vehicle, called RailCab, which is equipped with self-optimizing function modules."}],"citation":{"mla":"Sondermann-Wölke, Christoph, et al. “Guideline for the Dependability-Oriented Design of Self-Optimizing Systems.” <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference On</i>, 2010, pp. 739–44, doi:<a href=\"https://doi.org/10.1109/INDIN.2010.5549490\">10.1109/INDIN.2010.5549490</a>.","ama":"Sondermann-Wölke C, Hemsel T, Sextro W, Gausemeier J, Pook S. Guideline for the dependability-oriented design of self-optimizing systems. In: <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference On</i>. ; 2010:739-744. doi:<a href=\"https://doi.org/10.1109/INDIN.2010.5549490\">10.1109/INDIN.2010.5549490</a>","bibtex":"@inproceedings{Sondermann-Wölke_Hemsel_Sextro_Gausemeier_Pook_2010, title={Guideline for the dependability-oriented design of self-optimizing systems}, DOI={<a href=\"https://doi.org/10.1109/INDIN.2010.5549490\">10.1109/INDIN.2010.5549490</a>}, booktitle={Industrial Informatics (INDIN), 2010 8th IEEE International Conference on}, author={Sondermann-Wölke, Christoph and Hemsel, Tobias and Sextro, Walter and Gausemeier, Jürgen and Pook, Sebastian}, year={2010}, pages={739–744} }","apa":"Sondermann-Wölke, C., Hemsel, T., Sextro, W., Gausemeier, J., &#38; Pook, S. (2010). Guideline for the dependability-oriented design of self-optimizing systems. In <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference on</i> (pp. 739–744). <a href=\"https://doi.org/10.1109/INDIN.2010.5549490\">https://doi.org/10.1109/INDIN.2010.5549490</a>","ieee":"C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, and S. Pook, “Guideline for the dependability-oriented design of self-optimizing systems,” in <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference on</i>, 2010, pp. 739–744.","short":"C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, S. Pook, in: Industrial Informatics (INDIN), 2010 8th IEEE International Conference On, 2010, pp. 739–744.","chicago":"Sondermann-Wölke, Christoph, Tobias Hemsel, Walter Sextro, Jürgen Gausemeier, and Sebastian Pook. “Guideline for the Dependability-Oriented Design of Self-Optimizing Systems.” In <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference On</i>, 739–44, 2010. <a href=\"https://doi.org/10.1109/INDIN.2010.5549490\">https://doi.org/10.1109/INDIN.2010.5549490</a>."},"publication":"Industrial Informatics (INDIN), 2010 8th IEEE International Conference on","department":[{"_id":"151"}],"type":"conference","keyword":["RailCab","dependability-critical behavior","dependability-oriented design","failure mode","rail-bound vehicle","secure self-optimizing systems","self-optimizing function modules","optimisation","railways","self-adjusting systems"],"date_created":"2019-05-13T10:25:26Z"},{"user_id":"55222","volume":3,"page":"65 - 74","language":[{"iso":"eng"}],"_id":"9761","date_updated":"2022-01-06T07:04:19Z","intvolume":"         3","status":"public","year":"2010","title":"Integration of Condition Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance Module","author":[{"full_name":"Sondermann-Wölke, Christoph","last_name":"Sondermann-Wölke","first_name":"Christoph"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"keyword":["dependability","condition monitoring","selfoptimization","active railway guidance module"],"type":"journal_article","department":[{"_id":"151"}],"date_created":"2019-05-13T10:27:02Z","abstract":[{"lang":"eng","text":"New mechatronic systems, called self-optimizing systems, are able to adapt their behavior according to environmental, user and system specific influences. Self-optimizing systems are complex and due to their non-deterministic behavior comprise hidden risks, which cannot be foreseen in the design phase of the system. Therefore, modifications of the ISO 17359 condition monitoring policy for being able to cope with this new kind of systems are presented. Besides avoiding critical situations evoked by self-optimization, the proposed concept uses self-optimization to increase the dependability of the system. This concept is applied to the active guidance module of an innovative rail-bound vehicle. First test drives provide information for the enhancement of the implementation of realtime switching to appropriate control strategies. The different control strategies are investigated in detail. It is illustrated that influences on the system like different track sections or the desired velocity of the RailCab effect the system and can lead to a higher amount of flange contacts, which indicate higher wear and thus a reduction of the availability of the system. Therefore, these influences should be minded within the condition monitoring policy. Consequently, this article presents the condition monitoring policy for self-optimizing function modules and its application to the active railway guidance module."}],"quality_controlled":"1","publication":"International Journal On Advances in Intelligent Systems","issue":"1 - 3","citation":{"ieee":"C. Sondermann-Wölke and W. Sextro, “Integration of Condition Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance Module,” <i>International Journal On Advances in Intelligent Systems</i>, vol. 3, no. 1–3, pp. 65–74, 2010.","apa":"Sondermann-Wölke, C., &#38; Sextro, W. (2010). Integration of Condition Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance Module. <i>International Journal On Advances in Intelligent Systems</i>, <i>3</i>(1–3), 65–74.","short":"C. Sondermann-Wölke, W. Sextro, International Journal On Advances in Intelligent Systems 3 (2010) 65–74.","chicago":"Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition Monitoring in Self-Optimizing Function Modules Applied to the Active Railway Guidance Module.” <i>International Journal On Advances in Intelligent Systems</i> 3, no. 1–3 (2010): 65–74.","mla":"Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition Monitoring in Self-Optimizing Function Modules Applied to the Active Railway Guidance Module.” <i>International Journal On Advances in Intelligent Systems</i>, vol. 3, no. 1–3, 2010, pp. 65–74.","bibtex":"@article{Sondermann-Wölke_Sextro_2010, title={Integration of Condition Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance Module}, volume={3}, number={1–3}, journal={International Journal On Advances in Intelligent Systems}, author={Sondermann-Wölke, Christoph and Sextro, Walter}, year={2010}, pages={65–74} }","ama":"Sondermann-Wölke C, Sextro W. Integration of Condition Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance Module. <i>International Journal On Advances in Intelligent Systems</i>. 2010;3(1-3):65-74."}},{"quality_controlled":"1","citation":{"bibtex":"@inproceedings{Sondermann-Wölke_Sextro_Geisler_Trächtler_2010, place={Paderborn}, series={HNI-Verlagsschriftenreihe}, title={Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls}, volume={272}, booktitle={Entwurf mechatronischer Systeme}, author={Sondermann-Wölke, Christoph and Sextro, Walter and Geisler, Jens and Trächtler, Ansgar}, editor={Gausemeier, Jürgen and Rammig, Frans Josef and Trächtler, AnsgarEditors}, year={2010}, pages={411–420}, collection={HNI-Verlagsschriftenreihe} }","chicago":"Sondermann-Wölke, Christoph, Walter Sextro, Jens Geisler, and Ansgar Trächtler. “Experimentelle Untersuchung Der Selbstoptimierung Innerhalb Des RailCab-Spurführungsmoduls.” In <i>Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier, Frans Josef Rammig, and Ansgar Trächtler, 272:411–20. HNI-Verlagsschriftenreihe. Paderborn, 2010.","ama":"Sondermann-Wölke C, Sextro W, Geisler J, Trächtler A. Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls. In: Gausemeier J, Rammig FJ, Trächtler A, eds. <i>Entwurf Mechatronischer Systeme</i>. Vol 272. HNI-Verlagsschriftenreihe. Paderborn; 2010:411-420.","short":"C. Sondermann-Wölke, W. Sextro, J. Geisler, A. Trächtler, in: J. Gausemeier, F.J. Rammig, A. Trächtler (Eds.), Entwurf Mechatronischer Systeme, Paderborn, 2010, pp. 411–420.","ieee":"C. Sondermann-Wölke, W. Sextro, J. Geisler, and A. Trächtler, “Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls,” in <i>Entwurf mechatronischer Systeme</i>, 2010, vol. 272, pp. 411–420.","mla":"Sondermann-Wölke, Christoph, et al. “Experimentelle Untersuchung Der Selbstoptimierung Innerhalb Des RailCab-Spurführungsmoduls.” <i>Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier et al., vol. 272, 2010, pp. 411–20.","apa":"Sondermann-Wölke, C., Sextro, W., Geisler, J., &#38; Trächtler, A. (2010). Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls. In J. Gausemeier, F. J. Rammig, &#38; A. Trächtler (Eds.), <i>Entwurf mechatronischer Systeme</i> (Vol. 272, pp. 411–420). Paderborn."},"place":"Paderborn","status":"public","volume":272,"editor":[{"first_name":"Jürgen","last_name":"Gausemeier","full_name":"Gausemeier, Jürgen"},{"first_name":"Frans Josef","last_name":"Rammig","full_name":"Rammig, Frans Josef"},{"last_name":"Trächtler","first_name":"Ansgar","full_name":"Trächtler, Ansgar"}],"user_id":"55222","_id":"9762","page":"411 - 420","abstract":[{"lang":"eng","text":"Die erweiterten Möglichkeiten der Informationsverarbeitung mechatronischer Systeme erlauben es, mechatronische Systeme selbstoptimierend zu gestalten. Dabei bezieht sich die Selbstoptimierung auf die Fähigkeit des Systems, sich an die aktuelle Umfeldsituation anzupassen; wobei das System im Allgemeinen mehrere relevante Ziele verfolgt. Wurde eine Umfeldveränderung bemerkt, so müssen diese Ziele an die neue Situation angepasst und das resultierende Verhalten ausgewählt werden. In diesem Beitrag wird das selbstoptimierende Spurführungsmodul näher untersucht. Das Spurführungsmodul ist Bestandteil eines innovativen schienengebundenen Verkehrssystems, genannt RailCab, und dient zur Lenkung des einzelnen Fahrzeugs. Ziele des Spurführungsmoduls bestehen darin, die Verlässlichkeit des Spurführungsmoduls zu erhöhen sowie möglichst wenig Energie zu verbrauchen. Um kritische Systemzustände zu erkennen bzw. frühzeitig zu verhindern wird eine Vorgehensweise zur Einrichtung einer Zustandsüberwachung für selbstoptimierende Systeme beschrieben. Diese wird auf dem realen Versuchsträger im Maßstab 1:2,5 implementiert. Die Auswertung von Versuchsfahrten zeigt, dass gerade beim Auftreten eines Fehlers das Umschalten vom Ziel ''Energieverbrauch minimieren`` auf das Ziel ''Verlässlichkeit maximieren`` sinnvoll ist."}],"publication":"Entwurf mechatronischer Systeme","department":[{"_id":"151"}],"type":"conference","keyword":["Selbstoptimierung","Spurführungsmodul"],"date_created":"2019-05-13T10:28:04Z","intvolume":"       272","date_updated":"2022-01-06T07:04:19Z","author":[{"first_name":"Christoph","last_name":"Sondermann-Wölke","full_name":"Sondermann-Wölke, Christoph"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"},{"full_name":"Geisler, Jens","first_name":"Jens","last_name":"Geisler"},{"first_name":"Ansgar","last_name":"Trächtler","full_name":"Trächtler, Ansgar"}],"title":"Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls","year":"2010","series_title":"HNI-Verlagsschriftenreihe","language":[{"iso":"eng"}]},{"date_updated":"2022-01-06T07:04:19Z","status":"public","title":"Increasing the reliability of a self-optimizing railway guidance system","year":"2010","publication_identifier":{"issn":["0149-144X"]},"author":[{"full_name":"Sondermann-Wölke, Christoph","last_name":"Sondermann-Wölke","first_name":"Christoph"},{"first_name":"Jens","last_name":"Geisler","full_name":"Geisler, Jens"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"}],"doi":"10.1109/RAMS.2010.5448080","user_id":"55222","page":"1 -6","language":[{"iso":"eng"}],"_id":"9763","quality_controlled":"1","abstract":[{"text":"Recent advances in information processing enable new kinds of technical systems, called self-optimizing systems. These systems are able to adapt their objectives and their behavior according to the current situation and influences autonomously. This behavior adaptation is non-deterministic and hence self-optimization is a risk to the system, e.g. if the result of the self-optimization process does not match the suddenly changed situation. In contrary, self-optimization could be used to increase the dependability by pursuing objectives like reliability and availability. In our preceding publications we introduced the so called multi-level dependability concept to cope with this new kind of systems (cf. [6]). This concept comprises the monitoring of the system behavior, the classification of the current situation, and the selection of the appropriate measure, if reliability limits are exceeded. In this paper we present for the first time experimental results. The dependability concept is implemented in the self-optimizing active guidance system of a railway vehicle. The test drives illustrate clearly that the proposed concept is able to cope with, e.g., sensor failures, and is able to increase the reliability and availability of the active guidance module.","lang":"eng"}],"publication":"Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual","citation":{"chicago":"Sondermann-Wölke, Christoph, Jens Geisler, and Walter Sextro. “Increasing the Reliability of a Self-Optimizing Railway Guidance System.” In <i>Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i>, 1–6, 2010. <a href=\"https://doi.org/10.1109/RAMS.2010.5448080\">https://doi.org/10.1109/RAMS.2010.5448080</a>.","short":"C. Sondermann-Wölke, J. Geisler, W. Sextro, in: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.","ieee":"C. Sondermann-Wölke, J. Geisler, and W. Sextro, “Increasing the reliability of a self-optimizing railway guidance system,” in <i>Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i>, 2010, pp. 1–6.","apa":"Sondermann-Wölke, C., Geisler, J., &#38; Sextro, W. (2010). Increasing the reliability of a self-optimizing railway guidance system. In <i>Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i> (pp. 1–6). <a href=\"https://doi.org/10.1109/RAMS.2010.5448080\">https://doi.org/10.1109/RAMS.2010.5448080</a>","bibtex":"@inproceedings{Sondermann-Wölke_Geisler_Sextro_2010, title={Increasing the reliability of a self-optimizing railway guidance system}, DOI={<a href=\"https://doi.org/10.1109/RAMS.2010.5448080\">10.1109/RAMS.2010.5448080</a>}, booktitle={Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter}, year={2010}, pages={1–6} }","ama":"Sondermann-Wölke C, Geisler J, Sextro W. Increasing the reliability of a self-optimizing railway guidance system. In: <i>Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i>. ; 2010:1-6. doi:<a href=\"https://doi.org/10.1109/RAMS.2010.5448080\">10.1109/RAMS.2010.5448080</a>","mla":"Sondermann-Wölke, Christoph, et al. “Increasing the Reliability of a Self-Optimizing Railway Guidance System.” <i>Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i>, 2010, pp. 1–6, doi:<a href=\"https://doi.org/10.1109/RAMS.2010.5448080\">10.1109/RAMS.2010.5448080</a>."},"type":"conference","keyword":["availability","dependability concept","multilevel dependability concept","railway vehicle","reliability","self optimizing active guidance system","self optimizing railway guidance system","situation classification","system behavior monitoring","optimal control","railways","reliability theory","self-adjusting systems"],"department":[{"_id":"151"}],"date_created":"2019-05-13T10:35:39Z"}]