[{"user_id":"210","page":"1-6","_id":"17355","language":[{"iso":"eng"}],"date_updated":"2023-09-21T14:27:32Z","year":"2020","title":"Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding","status":"public","author":[{"full_name":"Schemmel, Reinhard","last_name":"Schemmel","first_name":"Reinhard","id":"28647"},{"id":"38259","last_name":"Scheidemann","first_name":"Claus","full_name":"Scheidemann, Claus"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"},{"full_name":"Kirsch, Olaf ","last_name":"Kirsch","first_name":"Olaf "},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"type":"conference","department":[{"_id":"151"}],"date_created":"2020-07-06T07:41:21Z","quality_controlled":"1","abstract":[{"text":"Ultrasonic wire bonding is a process to form electrical connections in electronics well established industry. Typically, a clamping tool is pressed on the wire and forced to vibrate at relative high frequency 40 to 100 kHz. The ultrasonic vibration is transmitted through the wire into the interface between wire and substrate. Due to frictional processes, contamination like oxide layers are removed from the contact zone, the surface roughness is reduced, and with increasing bond duration an metallic connection of wire and substrate is established. It is known that the amount of ultrasonic energy over time directly influences the strength and reliability of the bond connection, but the determination of optimum bond parameters is still a challenging experimental task. For this, in the past different model approaches have been presented, to calculate the bond quality by simulation. Measuring the friction between wire and substrate to validate these models is a challenging task at ultrasonic bonding frequency. Therefore a versatile test rig for bonding experiments at frequencies lower than 1 kHz is setup to get detailed insight into the different phases of the connection process. It includes a piezoelectric force sensor for the measurement of the three-dimensional process forces, an electrodynamic shaker for the vibration excitation and a conventional tension-compression testing machine to apply the bond normal force. Using this test rig, it is possible to observe the different phases of bond formation in detail, validate and enhance existing models and finally optimize bond parameters for different processes.","lang":"eng"}],"publication":"CIPS 2020; 11th International Conference on Integrated Power Electronics Systems","citation":{"ieee":"R. Schemmel, C. Scheidemann, T. Hemsel, O. Kirsch, and W. Sextro, “Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding,” in CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6.","apa":"Schemmel, R., Scheidemann, C., Hemsel, T., Kirsch, O., & Sextro, W. (2020). Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding. CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 1–6.","short":"R. Schemmel, C. Scheidemann, T. Hemsel, O. Kirsch, W. Sextro, in: CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6.","chicago":"Schemmel, Reinhard, Claus Scheidemann, Tobias Hemsel, Olaf Kirsch, and Walter Sextro. “Experimental Analysis and Modelling of Bond Formation in Ultrasonic Heavy Wire Bonding.” In CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 1–6, 2020.","mla":"Schemmel, Reinhard, et al. “Experimental Analysis and Modelling of Bond Formation in Ultrasonic Heavy Wire Bonding.” CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6.","bibtex":"@inproceedings{Schemmel_Scheidemann_Hemsel_Kirsch_Sextro_2020, title={Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding}, booktitle={CIPS 2020; 11th International Conference on Integrated Power Electronics Systems}, author={Schemmel, Reinhard and Scheidemann, Claus and Hemsel, Tobias and Kirsch, Olaf and Sextro, Walter}, year={2020}, pages={1–6} }","ama":"Schemmel R, Scheidemann C, Hemsel T, Kirsch O, Sextro W. Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding. In: CIPS 2020; 11th International Conference on Integrated Power Electronics Systems. ; 2020:1-6."}},{"date_created":"2019-05-20T11:06:33Z","department":[{"_id":"151"}],"type":"book","citation":{"bibtex":"@book{Magnus_Popp_Sextro_2020, title={Schwingungen}, DOI={10.1007/978-3-658-31116-2}, publisher={Springer Vieweg Wiesbaden}, author={Magnus, Kurt and Popp, Karl and Sextro, Walter}, year={2020} }","chicago":"Magnus, Kurt, Karl Popp, and Walter Sextro. Schwingungen. Springer Vieweg Wiesbaden, 2020. https://doi.org/10.1007/978-3-658-31116-2.","ama":"Magnus K, Popp K, Sextro W. Schwingungen. Springer Vieweg Wiesbaden; 2020. doi:10.1007/978-3-658-31116-2","short":"K. Magnus, K. Popp, W. Sextro, Schwingungen, Springer Vieweg Wiesbaden, 2020.","ieee":"K. Magnus, K. Popp, and W. Sextro, Schwingungen. Springer Vieweg Wiesbaden, 2020.","apa":"Magnus, K., Popp, K., & Sextro, W. (2020). Schwingungen. Springer Vieweg Wiesbaden. https://doi.org/10.1007/978-3-658-31116-2","mla":"Magnus, Kurt, et al. Schwingungen. Springer Vieweg Wiesbaden, 2020, doi:10.1007/978-3-658-31116-2."},"abstract":[{"lang":"eng","text":"Schwingungsprobleme in der Technik analysieren, verstehen und beschreiben Schwingungen treten als nützliche oder auch als störende Erscheinungen fast überall in Natur und Technik auf. Deshalb ist es wichtig, sie zu verstehen, zu deuten oder auch in gewünschter Weise zu beeinflussen. Dieses Lehrbuch gibt eine Einführung in die physikalischen Grundlagen und die mathematische Behandlung von Schwingungen. In der aktuellen Auflage wurden der Text und die Bilder überarbeitet sowie konstruktive Hinweise von Fachkollegen berücksichtigt. Der Inhalt Grundbegriffe und Darstellungsmittel - Freie Schwingungen - Selbsterregte Schwingungen - Parametererregte Schwingungen - Erzwungene Schwingungen - Koppelschwingungen - Kontinuumsschwingungen - Chaotische Bewegungen - Aufgaben und Ergebnisse Die Zielgruppe Studierende der Ingenieurwissenschaften, der Physik und der Mathematik, berufstätige Ingenieure"}],"_id":"9857","language":[{"iso":"ger"}],"publisher":"Springer Vieweg Wiesbaden","page":"285","user_id":"210","doi":"10.1007/978-3-658-31116-2","author":[{"full_name":"Magnus, Kurt","first_name":"Kurt","last_name":"Magnus"},{"last_name":"Popp","first_name":"Karl","full_name":"Popp, Karl"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"publication_identifier":{"eisbn":["978-3-658-31116-2"],"isbn":["978-3-658-31115-5"]},"status":"public","year":"2020","title":"Schwingungen","publication_status":"published","date_updated":"2023-09-21T14:02:49Z"},{"title":"Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization","status":"public","year":"2020","publication_identifier":{"isbn":["9781728160498"]},"author":[{"first_name":"Reinhard","last_name":"Schemmel","full_name":"Schemmel, Reinhard","id":"28647"},{"full_name":"Krieger, Viktor","last_name":"Krieger","first_name":"Viktor"},{"id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"publication_status":"published","date_updated":"2023-09-21T14:16:41Z","language":[{"iso":"eng"}],"_id":"17706","user_id":"210","doi":"10.1109/eurosime48426.2020.9152679","publication":"2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)","citation":{"short":"R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, in: 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020.","ama":"Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. In: 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). ; 2020. doi:10.1109/eurosime48426.2020.9152679","chicago":"Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” In 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020. https://doi.org/10.1109/eurosime48426.2020.9152679.","bibtex":"@inproceedings{Schemmel_Krieger_Hemsel_Sextro_2020, title={Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization}, DOI={10.1109/eurosime48426.2020.9152679}, booktitle={2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)}, author={Schemmel, Reinhard and Krieger, Viktor and Hemsel, Tobias and Sextro, Walter}, year={2020} }","mla":"Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020, doi:10.1109/eurosime48426.2020.9152679.","apa":"Schemmel, R., Krieger, V., Hemsel, T., & Sextro, W. (2020). Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). https://doi.org/10.1109/eurosime48426.2020.9152679","ieee":"R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization,” 2020, doi: 10.1109/eurosime48426.2020.9152679."},"date_created":"2020-08-07T09:49:17Z","type":"conference","department":[{"_id":"151"}]},{"department":[{"_id":"151"}],"type":"conference","keyword":["PHM 2019","crack propagation","forecasting","unevenly spaced time series","step ahead prediction","short time series"],"date_created":"2020-08-11T13:32:40Z","quality_controlled":"1","abstract":[{"text":"In all fields, the significance of a reliable and accurate predictive model is almost unquantifiable. With deep domain knowledge, models derived from first principles typically outperforms other models in terms of reliability and accuracy. When it may become a cumbersome or an unachievable task to build or validate such models of complex (non-linear) systems, machine learning techniques are employed to build predictive models. However, the accuracy of such techniques is not only dependent on the hyper-parameters of the chosen algorithm, but also on the amount and quality of data. This paper investigates the application of classical time series forecasting approaches for the reliable prognostics of technical systems, where black box machine learning techniques might not successfully be employed given insufficient amount of data and where first principles models are infeasible due to lack of domain specific data. Forecasting by analogy, forecasting by analytical function fitting, an exponential smoothing forecasting method and the long short-term memory (LSTM) are evaluated and compared against the ground truth data. As a case study, the methods are applied to predict future crack lengths of riveted aluminium plates under cyclic loading. The performance of the predictive models is evaluated based on error metrics leading to a proposal of when to apply which forecasting approach.","lang":"eng"}],"citation":{"ieee":"O. K. Aimiyekagbon, A. Bender, and W. Sextro, “Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data,” in PHM Society European Conference, 2020, vol. 5, no. 1.","apa":"Aimiyekagbon, O. K., Bender, A., & Sextro, W. (2020). Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data. PHM Society European Conference, 5(1).","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Evaluation of Time Series Forecasting Approaches for the Reliable Crack Length Prediction of Riveted Aluminium Plates given Insufficient Data.” PHM Society European Conference, vol. 5, no. 1, 2020.","bibtex":"@inproceedings{Aimiyekagbon_Bender_Sextro_2020, title={Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data}, volume={5}, number={1}, booktitle={PHM Society European Conference}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter}, year={2020} }","chicago":"Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “Evaluation of Time Series Forecasting Approaches for the Reliable Crack Length Prediction of Riveted Aluminium Plates given Insufficient Data.” In PHM Society European Conference, Vol. 5, 2020.","short":"O.K. Aimiyekagbon, A. Bender, W. Sextro, in: PHM Society European Conference, 2020.","ama":"Aimiyekagbon OK, Bender A, Sextro W. Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data. In: PHM Society European Conference. Vol 5. ; 2020."},"issue":"1","publication":"PHM Society European Conference","volume":5,"user_id":"9557","_id":"17810","language":[{"iso":"eng"}],"intvolume":" 5","date_updated":"2023-09-22T09:13:16Z","author":[{"full_name":"Aimiyekagbon, Osarenren Kennedy","first_name":"Osarenren Kennedy","last_name":"Aimiyekagbon","id":"9557"},{"id":"54290","full_name":"Bender, Amelie","last_name":"Bender","first_name":"Amelie"},{"full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro","id":"21220"}],"status":"public","year":"2020","title":"Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data"},{"user_id":"210","ddc":["620"],"publication_date":"15.07.2020","page":"1","_id":"9981","has_accepted_license":"1","status":"public","application_number":"18154730.8","file_date_updated":"2022-09-07T05:17:34Z","citation":{"ieee":"K. Reinke, A. Bender, T. Meyer, W. Sextro, and J. K. Kimotho, “Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.” 2020.","apa":"Reinke, K., Bender, A., Meyer, T., Sextro, W., & Kimotho, J. K. (2020). Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.","mla":"Reinke, Kai, et al. Patent EP 3 358 332 B1: Verfahren Zur Bestimmung Des Beginns Einer Verschleißbedingten Bauteil-Restnutzungsdauer Eines Elastisch Verformbaren Bauteils, Als Strukturteil Und/Oder Lagerteil Eines Geräts. 2020.","bibtex":"@article{Reinke_Bender_Meyer_Sextro_Kimotho_2020, title={Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.}, author={Reinke, Kai and Bender, Amelie and Meyer, Tobias and Sextro, Walter and Kimotho, James Kuria}, year={2020} }","chicago":"Reinke, Kai, Amelie Bender, Tobias Meyer, Walter Sextro, and James Kuria Kimotho. “Patent EP 3 358 332 B1: Verfahren Zur Bestimmung Des Beginns Einer Verschleißbedingten Bauteil-Restnutzungsdauer Eines Elastisch Verformbaren Bauteils, Als Strukturteil Und/Oder Lagerteil Eines Geräts.,” 2020.","ama":"Reinke K, Bender A, Meyer T, Sextro W, Kimotho JK. Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts. Published online 2020.","short":"K. Reinke, A. Bender, T. Meyer, W. Sextro, J.K. Kimotho, (2020)."},"date_updated":"2023-09-28T09:49:19Z","ipn":"EP 3 358 332 B1","year":"2020","title":"Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.","author":[{"first_name":"Kai","last_name":"Reinke","full_name":"Reinke, Kai"},{"first_name":"Amelie","last_name":"Bender","full_name":"Bender, Amelie","id":"54290"},{"full_name":"Meyer, Tobias","first_name":"Tobias","last_name":"Meyer"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"},{"full_name":"Kimotho, James Kuria","first_name":"James Kuria","last_name":"Kimotho"}],"type":"patent","department":[{"_id":"151"}],"file":[{"content_type":"application/pdf","success":1,"file_id":"33277","date_updated":"2022-09-07T05:17:34Z","relation":"main_file","access_level":"closed","file_size":115020,"file_name":"EP000003358332B1_1.pdf","date_created":"2022-09-07T05:17:34Z","creator":"ekubi"}],"date_created":"2019-05-27T09:46:54Z","abstract":[{"text":"Die Erfindung betrifft ein Gerät mit wenigstens einem elastisch verformbaren Bauteil als Strukturteil und/oder Lagerteil, auf das im Betriebsverlauf von wechselnden Betriebszuständen abhängige, unterschiedliche Verformungskräfte einwirken, die zu einem die Bauteilnutzungsdauer begrenzenden Bauteilverschleiß führen, und mit einer Einrichtung zur Bestimmung der Bauteilnutzungsdauer und einer verschleißbedingten Bauteil-Restnutzungsdauer. Erfindungsgemäß wird ein sich zeitversetzt wiederholender, jeweils gleicher Betriebszustand vorbestimmt, dem eine jeweils gleiche Verformungskraft zugeordnet ist, durch die das elastisch verformbare Bauteilmaterial verformt wird. Ein solcher vorbestimmter Betriebszustand wird jeweils von einer Mess- und Auswerteeinheit erkannt und ein Messvorgang durch ein Startsignal selbsttätig gestartet, wobei mit wenigstens einem bauteilzugeordneten Beschleunigungssensor, die aktuelle Beschleunigung der Verformung oder daraus abgeleitete Kennwerte als Kenngröße für eine aktuelle Bauteilsteifigkeit gemessen und jeweils in einer Messkurve gespeichert und verglichen wird.","lang":"ger"}],"ipc":"G01M 13/00","application_date":"01.02.2018"},{"date_created":"2021-09-03T05:58:32Z","department":[{"_id":"152"}],"type":"conference","citation":{"short":"T. Kaul, J. Hentze, W. Sextro, I. Gräßler, in: T. Bertram, B. Corves, I. Gräßler, K. Janschek (Eds.), Fachtagung Mechatronik 2019 Paderborn, 2019, pp. 19–24.","chicago":"Kaul, Thorben, Julian Hentze, Walter Sextro, and Iris Gräßler. “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung.” In Fachtagung Mechatronik 2019 Paderborn, edited by Torsten Bertram, Burkhard Corves, Iris Gräßler, and Klaus Janschek, 19–24, 2019.","apa":"Kaul, T., Hentze, J., Sextro, W., & Gräßler, I. (2019). Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In T. Bertram, B. Corves, I. Gräßler, & K. Janschek (Eds.), Fachtagung Mechatronik 2019 Paderborn (pp. 19–24).","ieee":"T. Kaul, J. Hentze, W. Sextro, and I. Gräßler, “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung,” in Fachtagung Mechatronik 2019 Paderborn, 2019, pp. 19–24.","ama":"Kaul T, Hentze J, Sextro W, Gräßler I. Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In: Bertram T, Corves B, Gräßler I, Janschek K, eds. Fachtagung Mechatronik 2019 Paderborn. ; 2019:19-24.","bibtex":"@inproceedings{Kaul_Hentze_Sextro_Gräßler_2019, title={Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung}, booktitle={Fachtagung Mechatronik 2019 Paderborn}, author={Kaul, Thorben and Hentze, Julian and Sextro, Walter and Gräßler, Iris}, editor={Bertram, Torsten and Corves, Burkhard and Gräßler, Iris and Janschek, KlausEditors}, year={2019}, pages={19–24} }","mla":"Kaul, Thorben, et al. “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung.” Fachtagung Mechatronik 2019 Paderborn, edited by Torsten Bertram et al., 2019, pp. 19–24."},"publication":"Fachtagung Mechatronik 2019 Paderborn","abstract":[{"text":"In der Entwicklung mechatronischer Systeme spielt die Steigerung der Verlässlichkeit und somit auch der Zuverlässigkeit und der funktionalen Sicherheit eine entscheidende Rolle. Die modellbasierte Entwicklung liefert in Kombination mit unterstützender Software einen wichtigen Beitrag zur Absicherung der Verlässlichkeit mechatronischer Systeme in frühen Entwicklungsphasen. In der Nutzungsphase ermöglichen aktuelle Verfahren der Zustandsüberwachung und moderne Methoden der Regelungstechnik eine effektive Absicherung. Modelle aus der Entwicklung mechatronischer Systeme enthalten weitreichende Informationen über die Architektur, das Verhalten und die Verlässlichkeit eines Systems. Diese Modelle können als Grundlage für die Erstellung eines Digitalen Zwillings für die vorausschauende Instandhaltung verwendet und mit Zustandsdaten des realen Systems kombiniert werden. Die Nutzung der Modelle für den Digitalen Zwilling bietet weitreichende Potenziale und vereinfacht dessen Erzeugung. Die Veröffentlichung beschreibt Rahmenbedingungen der Integration und stellt die Potenziale des Digitalen Zwillings zur vorausschauenden Instandhaltung dar.","lang":"eng"}],"_id":"23716","language":[{"iso":"ger"}],"page":"19-24","editor":[{"full_name":"Bertram, Torsten","last_name":"Bertram","first_name":"Torsten"},{"first_name":"Burkhard","last_name":"Corves","full_name":"Corves, Burkhard"},{"full_name":"Gräßler, Iris","first_name":"Iris","last_name":"Gräßler"},{"full_name":"Janschek, Klaus","last_name":"Janschek","first_name":"Klaus"}],"user_id":"21240","conference":{"end_date":"2019-03-28","start_date":"2019-03-27"},"author":[{"full_name":"Kaul, Thorben","last_name":"Kaul","first_name":"Thorben","id":"14802"},{"id":"13342","full_name":"Hentze, Julian","first_name":"Julian","last_name":"Hentze"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"},{"full_name":"Gräßler, Iris","first_name":"Iris","orcid":"0000-0001-5765-971X","last_name":"Gräßler","id":"47565"}],"year":"2019","status":"public","title":"Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung","date_updated":"2022-01-06T06:55:58Z"},{"date_updated":"2022-01-06T06:52:08Z","publication_status":"published","author":[{"full_name":"Dunst, Paul","last_name":"Dunst","first_name":"Paul","id":"22130"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"},{"full_name":"Littmann, Walter ","last_name":"Littmann","first_name":"Walter "},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"title":"Atomization of Fluids with Ultrasound","year":"2019","language":[{"iso":"eng"}],"abstract":[{"text":"In a variety of industrial applications, liquids are atomized to produce aerosols for further processing. Example applications are the coating of surfaces with paints, the application of ultra-thin adhesive layers and the atomization of fuels for the production of combustible dispersions. In this publication different atomizing principles (standing-wave, capillary-wave, vibrating-mesh) are examined and discussed. Using an optimized standing-wave system, tough liquids with viscosities of up to about 100 Pas could be successfully atomized.","lang":"eng"}],"publication":"Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019)","department":[{"_id":"151"}],"keyword":["atomization","ultrasound","standing-wave","capillarywave","vibrating-mesh"],"type":"conference","date_created":"2019-11-07T15:25:30Z","file":[{"content_type":"application/pdf","success":1,"file_id":"14853","date_updated":"2019-11-07T15:22:56Z","relation":"main_file","access_level":"closed","file_size":3850591,"file_name":"Dunst_MFHS_2019.pdf","date_created":"2019-11-07T15:22:56Z","creator":"pdunst"}],"has_accepted_license":"1","conference":{"end_date":"2019-10-04","location":"Enschede, The Netherlands","name":"4th Conference on MicroFluidic Handling Systems","start_date":"2019-10-02"},"status":"public","editor":[{"full_name":"Lötters, Joost","last_name":"Lötters","first_name":"Joost"},{"full_name":"Urban, Gerald","last_name":"Urban","first_name":"Gerald"}],"ddc":["620"],"user_id":"22130","_id":"14852","page":"140-143","quality_controlled":"1","citation":{"short":"P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, W. Sextro, in: J. Lötters, G. Urban (Eds.), Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), Enschede, The Netherlands, 2019, pp. 140–143.","chicago":"Dunst, Paul, Peter Bornmann, Tobias Hemsel, Walter Littmann, and Walter Sextro. “Atomization of Fluids with Ultrasound.” In Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), edited by Joost Lötters and Gerald Urban, 140–43. Enschede, The Netherlands, 2019.","apa":"Dunst, P., Bornmann, P., Hemsel, T., Littmann, W., & Sextro, W. (2019). Atomization of Fluids with Ultrasound. In J. Lötters & G. Urban (Eds.), Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019) (pp. 140–143). Enschede, The Netherlands.","ieee":"P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, and W. Sextro, “Atomization of Fluids with Ultrasound,” in Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), Enschede, The Netherlands, 2019, pp. 140–143.","ama":"Dunst P, Bornmann P, Hemsel T, Littmann W, Sextro W. Atomization of Fluids with Ultrasound. In: Lötters J, Urban G, eds. Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019). Enschede, The Netherlands; 2019:140-143.","bibtex":"@inproceedings{Dunst_Bornmann_Hemsel_Littmann_Sextro_2019, place={Enschede, The Netherlands}, title={Atomization of Fluids with Ultrasound}, booktitle={Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019)}, author={Dunst, Paul and Bornmann, Peter and Hemsel, Tobias and Littmann, Walter and Sextro, Walter}, editor={Lötters, Joost and Urban, GeraldEditors}, year={2019}, pages={140–143} }","mla":"Dunst, Paul, et al. “Atomization of Fluids with Ultrasound.” Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), edited by Joost Lötters and Gerald Urban, 2019, pp. 140–43."},"file_date_updated":"2019-11-07T15:22:56Z","place":"Enschede, The Netherlands"},{"publication_identifier":{"isbn":["978-3-18-092366-6"]},"author":[{"id":"53321","first_name":"Oliver Ernst Caspar","last_name":"Hagedorn","full_name":"Hagedorn, Oliver Ernst Caspar"},{"last_name":"Pielsticker","first_name":"Daniel","full_name":"Pielsticker, Daniel","id":"76966"},{"last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"year":"2019","status":"public","title":"Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen","date_updated":"2022-01-06T06:52:19Z","_id":"15244","language":[{"iso":"ger"}],"publisher":"VDI Verlag GmbH · Düsseldorf 2019","user_id":"53321","citation":{"chicago":"Hagedorn, Oliver Ernst Caspar, Daniel Pielsticker, Tobias Hemsel, and Walter Sextro. “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen.” In 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019, 2019.","short":"O.E.C. Hagedorn, D. Pielsticker, T. Hemsel, W. Sextro, in: 2. VDI-Fachtagung Schwingungen 2019, VDI Verlag GmbH · Düsseldorf 2019, 2019.","ieee":"O. E. C. Hagedorn, D. Pielsticker, T. Hemsel, and W. Sextro, “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen,” in 2. VDI-Fachtagung Schwingungen 2019, 2019.","apa":"Hagedorn, O. E. C., Pielsticker, D., Hemsel, T., & Sextro, W. (2019). Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen. In 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019.","bibtex":"@inproceedings{Hagedorn_Pielsticker_Hemsel_Sextro_2019, title={Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen}, booktitle={2. VDI-Fachtagung Schwingungen 2019}, publisher={VDI Verlag GmbH · Düsseldorf 2019}, author={Hagedorn, Oliver Ernst Caspar and Pielsticker, Daniel and Hemsel, Tobias and Sextro, Walter}, year={2019} }","ama":"Hagedorn OEC, Pielsticker D, Hemsel T, Sextro W. Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen. In: 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019; 2019.","mla":"Hagedorn, Oliver Ernst Caspar, et al. “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen.” 2. VDI-Fachtagung Schwingungen 2019, VDI Verlag GmbH · Düsseldorf 2019, 2019."},"publication":"2. VDI-Fachtagung Schwingungen 2019","date_created":"2019-12-04T11:59:52Z","department":[{"_id":"151"}],"type":"conference"},{"date_created":"2019-05-27T10:31:35Z","department":[{"_id":"151"}],"type":"book","keyword":["Abschlussbericht zum Spitzenclusterprojekt InCuB"],"citation":{"ama":"Sextro W, Brökelmann M. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol VIII. Springer Verlag; 2019. doi:10.1007/978-3-662-55146-2","bibtex":"@book{Sextro_Brökelmann_2019, title={Intelligente Herstellung zuverlässiger Kupferbondverbindungen}, volume={VIII}, DOI={10.1007/978-3-662-55146-2}, publisher={Springer Verlag}, author={Sextro, Walter and Brökelmann, Michael}, year={2019} }","mla":"Sextro, Walter, and Michael Brökelmann. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol. VIII, Springer Verlag, 2019, doi:10.1007/978-3-662-55146-2.","chicago":"Sextro, Walter, and Michael Brökelmann. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol. VIII. Springer Verlag, 2019. https://doi.org/10.1007/978-3-662-55146-2.","short":"W. Sextro, M. Brökelmann, Intelligente Herstellung Zuverlässiger Kupferbondverbindungen, Springer Verlag, 2019.","apa":"Sextro, W., & Brökelmann, M. (2019). Intelligente Herstellung zuverlässiger Kupferbondverbindungen (Vol. VIII). Springer Verlag. https://doi.org/10.1007/978-3-662-55146-2","ieee":"W. Sextro and M. Brökelmann, Intelligente Herstellung zuverlässiger Kupferbondverbindungen, vol. VIII. Springer Verlag, 2019."},"abstract":[{"lang":"ger","text":"Dieses Buch beschreibt basierend auf dem gleichnamigen Innovationsprojekt im Spitzencluster it’s OWL die Entwicklung intelligenter Verfahren und Systeme, um auch unter variablen Produktionsbedingungen eine zuverlässige Massenfertigung von Kupferbondverbindungen sicherzustellen.Dabei wird der gesamte Prozess der Ultraschall-Verbindungsbildung modelliert. Dies beinhaltet u. a. ein Reibmodell mit gekoppeltem Anbindungsmodell, den Ultraschall-Erweichungseffekt und den Verschleiß des Bondwerkzeugs. Zudem wird das Konzept einer selbstoptimierenden Bondmaschine vorgestellt, welche Prozessparameter in Abhängigkeit von Störgrößen wie Verschleiß anpasst.Das Ultraschallbonden mit Aluminiumdraht ist ein etabliertes Fertigungsverfahren zur Kontaktierung von Leistungshalbleitern. Zukünftige Leistungshalbleiterchips erfordern jedoch einen Technologiewechsel zu Kupferdraht. Die Prozessparameter unterscheiden sich dabei deutlich von den bekannten Aluminiumprozessen, ihre Wechselwirkungen sind weitestgehend unbekannt."}],"publisher":"Springer Verlag","_id":"10002","language":[{"iso":"eng"}],"page":"67","volume":"VIII","user_id":"55222","doi":"10.1007/978-3-662-55146-2","author":[{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"},{"first_name":"Michael","last_name":"Brökelmann","full_name":"Brökelmann, Michael"}],"title":"Intelligente Herstellung zuverlässiger Kupferbondverbindungen","status":"public","year":"2019","date_updated":"2022-01-06T06:50:22Z"},{"date_updated":"2022-01-06T06:50:33Z","author":[{"last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie","id":"54290"},{"full_name":"Reinke, Kai","last_name":"Reinke","first_name":"Kai"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"title":"Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement","status":"public","year":"2019","volume":"VDI-Berichte 2346","user_id":"55222","language":[{"iso":"eng"}],"_id":"10255","page":"241-248","abstract":[{"lang":"eng","text":"Gummi-Metall-Teile (GM-Teile) werden zur Schwingungsreduktion u. a. in Windenergieanlagen eingesetzt. Mögliche Anwendungen der Teile liegen in Wellen-, Generator- und Getriebelagerungen, Lagern für die Gondel und ihre Komponenten sowie in Drehmomentstützen. Mit dem Ziel eine prädiktive Instandhaltung zu realisieren, soll eine Zustandsüberwachung für die GM-Teile entwickelt werden. Diese Entwicklung basiert auf der Umsetzung diverser Schritte. Neben der funktionalen Betrachtung wird zwingend auch die konstruktive Integration der Sensoren in das überwachte Teil berücksichtigt. Der Schwerpunkt dieser Arbeit liegt auf der verwendeten Messgröße Temperatur, die mittels ausgewählter Sensorik detektiert wird. Dabei werden Lebensdauerversuche unter instationären Betriebsbedingungen durchgeführt, um diese Messdaten zu generieren. In der Datenauswertung werden sie hinsichtlich der Degradierung des GM-Teils analysiert und für die Ermittlung der nutzbaren Restlebensdauer verwendet. Rubber-metal-elements are used for isolation of vibrations e. g. in wind turbines. Possible applications of the elements are shaft bearings, generator bearings, gearbox bearings, bearings for the nacelle and its components and torque supports. In order to realize predictive maintenance, an accurate condition monitoring system for rubber-metal-elements should be developed. During that development different aspects have to be implemented. Additionally to the functional analysis, the constructive integration of the sensors into the monitored part is mandatory. The focus of this work is on the measured variable temperature, which is detected by means of appropriate sensors. Thereby lifetime tests are run under non-stationary operating conditions to generate temperature measurements. During data analysis, the measured data is analyzed regarding the degradation of the rubber-metal-elements and remaining useful lifetimes are estimated."}],"citation":{"ieee":"A. Bender, K. Reinke, and W. Sextro, “Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement,” in 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, 2019, vol. VDI-Berichte 2346, pp. 241–248.","apa":"Bender, A., Reinke, K., & Sextro, W. (2019). Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement. In 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019 (Vol. VDI-Berichte 2346, pp. 241–248). Bremen 2019.","short":"A. Bender, K. Reinke, W. Sextro, in: 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, Bremen 2019, 2019, pp. 241–248.","chicago":"Bender, Amelie, Kai Reinke, and Walter Sextro. “Konstruktion Und Zustandsüberwachung Eines Gummi-Metall-Teils Mit Integriertem Thermoelement.” In 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, VDI-Berichte 2346:241–48. Bremen 2019, 2019.","mla":"Bender, Amelie, et al. “Konstruktion Und Zustandsüberwachung Eines Gummi-Metall-Teils Mit Integriertem Thermoelement.” 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, vol. VDI-Berichte 2346, 2019, pp. 241–48.","bibtex":"@inproceedings{Bender_Reinke_Sextro_2019, place={Bremen 2019}, title={Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement}, volume={VDI-Berichte 2346}, booktitle={10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019}, author={Bender, Amelie and Reinke, Kai and Sextro, Walter}, year={2019}, pages={241–248} }","ama":"Bender A, Reinke K, Sextro W. Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement. In: 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019. Vol VDI-Berichte 2346. Bremen 2019; 2019:241-248."},"publication":"10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019","department":[{"_id":"151"}],"type":"conference","place":"Bremen 2019","date_created":"2019-06-17T09:36:23Z"},{"year":"2019","status":"public","title":"Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung","author":[{"id":"14802","last_name":"Kaul","first_name":"Thorben","full_name":"Kaul, Thorben"},{"id":"13342","full_name":"Hentze, Julian","last_name":"Hentze","first_name":"Julian"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"},{"full_name":"Gräßler, Iris","last_name":"Gräßler","first_name":"Iris"}],"date_updated":"2022-01-06T06:50:33Z","_id":"10257","language":[{"iso":"eng"}],"user_id":"55222","publication":"Fachtagung Mechatronik 2019 Paderborn","citation":{"chicago":"Kaul, Thorben, Julian Hentze, Walter Sextro, and Iris Gräßler. “Integration von Verlässlichkeitsmodellen Der Entwicklung in Einen Digitalen Zwilling Zur Umsetzung Einer Vorausschauenden Instandhaltung.” In Fachtagung Mechatronik 2019 Paderborn, 2019.","short":"T. Kaul, J. Hentze, W. Sextro, I. Gräßler, in: Fachtagung Mechatronik 2019 Paderborn, 2019.","apa":"Kaul, T., Hentze, J., Sextro, W., & Gräßler, I. (2019). Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In Fachtagung Mechatronik 2019 Paderborn.","ieee":"T. Kaul, J. Hentze, W. Sextro, and I. Gräßler, “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung,” in Fachtagung Mechatronik 2019 Paderborn, 2019.","ama":"Kaul T, Hentze J, Sextro W, Gräßler I. Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In: Fachtagung Mechatronik 2019 Paderborn. ; 2019.","bibtex":"@inproceedings{Kaul_Hentze_Sextro_Gräßler_2019, title={Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung}, booktitle={Fachtagung Mechatronik 2019 Paderborn}, author={Kaul, Thorben and Hentze, Julian and Sextro, Walter and Gräßler, Iris}, year={2019} }","mla":"Kaul, Thorben, et al. “Integration von Verlässlichkeitsmodellen Der Entwicklung in Einen Digitalen Zwilling Zur Umsetzung Einer Vorausschauenden Instandhaltung.” Fachtagung Mechatronik 2019 Paderborn, 2019."},"abstract":[{"lang":"eng","text":"In der Entwicklung mechatronischer Systeme spielt die Steigerung der Verlässlichkeit und somit auch der Zuverlässigkeit und der funktionalen Sicherheit eine entscheidende Rolle. Die modellbasierte Entwicklung liefert in Kombination mit unterstützender Software einen wichtigen Beitrag zur Absicherung der Verlässlichkeit mechatronischer Systeme in frühen Entwicklungsphasen. In der Nutzungsphase ermöglichen aktuelle Verfahren der Zustandsüberwachung und moderne Methoden der Regelungstechnik eine effektive Absicherung. Modelle aus der Entwicklung mechatronischer Systeme enthalten weitreichende Informationen über die Architektur, das Verhalten und die Verlässlichkeit eines Systems. Diese Modelle können als Grundlage für die Erstellung eines Digitalen Zwillings für die vorausschauende Instandhaltung verwendet und mit Zustandsdaten des realen Systems kombiniert werden. Die Nutzung der Modelle für den Digitalen Zwilling bietet weitreichende Potenziale und vereinfacht dessen Erzeugung. Die Veröffentlichung beschreibt Rahmenbedingungen der Integration und stellt die Potenziale des Digitalen Zwillings zur vorausschauenden Instandhaltung dar."}],"date_created":"2019-06-17T12:43:10Z","type":"conference","department":[{"_id":"151"}]},{"abstract":[{"lang":"eng","text":"Für die Zerstäubung hochviskoser Flüssigkeiten werden neben Düsenzerstäubern vor allem UltraschallStehwellenzerstäuber angewendet [1]. Diese ermöglichen ohne weitere Maßnahmen zwar keine gerichtete Zerstäubung, benötigen jedoch im Gegensatz zu Düsenzerstäubern keine hohen Drücke und haben keine hohen Austrittsgeschwindigkeiten. Zur Erzeugung der Ultraschallwellen werden typischerweise piezoelektrische, mit Bolzen verschraubte LangevinWandler verwendet [1-4], die eine starke Schallabstrahlung bei einer elektrischen Eingangsleistung von bis zu einigen Kilowatt erzeugen können. Wie bei jedem anderen schwingenden System emittiert der Ultraschallwandler zunächst eine Wanderwelle. Mit einem Reflektor, der gegenüber der Sonotrode angeordnet ist, wird eine stehende Welle erzeugt. Im Resonanzabstand zwischen Reflektor und Wandler werden abgestrahlte und reflektierte Wellen so überlagert, dass höhere Schalldruckamplituden erzielt werden. Ein einfacher Ansatz zur Maximierung des Schallpegels im Stehwellenfeld ist die Erhöhung der Schwingungsamplituden des Wandlers, die jedoch zu Schäden oder zumindest zu einer Verringerung der Lebensdauer führen kann. Hohe Schalldrücke werden auch bei geringen Abständen zwischen Wandler und Reflektor erreicht. Das Volumen des Schallfeldes ist in diesem Fall jedoch für die meisten Prozesse zu klein. Ein weiterer Ansatz ist die Verwendung zweier entgegengesetzt angeordneter Wandler [5]. In diesem Fall erfordert jedoch die Erzeugung einer stehenden Welle eine genaue Abstimmung von Frequenz und Phase beider Wandler, was eine komplexe Steuerung erfordert. Ebenso ist es möglich, geometrische Randbedingungen des Stehwellensystems zu optimieren, sodass es zu optimaler Interferenz der Wellen kommt. Im Folgenden wird der Anschaulichkeit halber vereinfachend angenommen, dass der Wandler an seiner Sonotrodenoberfläche einzelne Schallstrahlen aussendet, die in Nähe des Wandlers nahezu parallel verlaufen und sich mit zunehmender Entfernung vom Wandler auffächern. Ein einfaches Stehwellensystem, bestehend aus ebener Sonotrode und ebenem Reflektor, erzeugt bei kleinem Abstand zwischen Sonotrode und Reflektor sehr hohe Schallpegel, da nahezu sämtliche ausgesandten Schallstrahlen in Richtung der Sonotrode reflektiert werden positive Interferenz entsteht. Erhöht man jedoch den Abstand zwischen Sonotrode und Reflektor, so nehmen die Verluste durch Schallstrahlen, die den Prozessraum verlassen, zu. Wie Abbildung 1 gezeigt, werden nur Schallstrahlen, die in etwa parallel zur Rotationsachse verlaufen, zum Wandler zurück reflektiert und tragen zum Stehwellenfeld bei. Die Strahlen haben zudem abhängig vom Abstrahlwinkel unterschiedliche Weglängen. Die Stehwellenbedingung ist demnach nur für Strahlen in der Nähe der Rotationsachse exakt erfüllt. Um dies zu vermeiden, müssen die Geometrien von Wandler und Reflektor optimiert werden. In den folgenden Abschnitten wird zunächst ein Optimierungsansatz vorgestellt. Mithilfe eines FiniteElemente-Modells werden die Auswirkungen einer optimierten Geometrie auf den maximalen Schalldruckpegel untersucht. Ergebnisse werden durch Messungen an einem experimentellen Aufbau eines Stehwellensystems validiert. Es wird gezeigt, wie sich die Optimierung der geometrischen Randbedingungen auf die Zerstäubung hochviskoser Flüssigkeiten auswirkt."}],"citation":{"mla":"Dunst, Paul, et al. “Modellbasierte Und Experimentelle Charakterisierung von Intensiven Ultraschall-Stehwellenfeldern Für Die Zerstäubung Hochviskoser Flüssigkeiten.” DAGA 2019, 2019.","bibtex":"@inproceedings{Dunst_Hemsel_Bornmann_Littmann_Sextro_2019, title={Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten}, booktitle={DAGA 2019}, author={Dunst, Paul and Hemsel, Tobias and Bornmann, Peter and Littmann, Walter and Sextro, Walter}, year={2019} }","ama":"Dunst P, Hemsel T, Bornmann P, Littmann W, Sextro W. Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten. In: DAGA 2019. ; 2019.","ieee":"P. Dunst, T. Hemsel, P. Bornmann, W. Littmann, and W. Sextro, “Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten,” in DAGA 2019, Rostock, 2019.","apa":"Dunst, P., Hemsel, T., Bornmann, P., Littmann, W., & Sextro, W. (2019). Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten. In DAGA 2019. Rostock.","chicago":"Dunst, Paul, Tobias Hemsel, Peter Bornmann, Walter Littmann, and Walter Sextro. “Modellbasierte Und Experimentelle Charakterisierung von Intensiven Ultraschall-Stehwellenfeldern Für Die Zerstäubung Hochviskoser Flüssigkeiten.” In DAGA 2019, 2019.","short":"P. Dunst, T. Hemsel, P. Bornmann, W. Littmann, W. Sextro, in: DAGA 2019, 2019."},"publication":"DAGA 2019","department":[{"_id":"151"}],"type":"conference","date_created":"2019-06-17T13:01:47Z","date_updated":"2022-01-06T06:50:33Z","conference":{"end_date":"2019-03-21","start_date":"2019-03-18","name":"Deutsche Jahrestagung für Akustik - DAGA 2019","location":"Rostock"},"author":[{"full_name":"Dunst, Paul","first_name":"Paul","last_name":"Dunst","id":"22130"},{"id":"210","last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"last_name":"Littmann","first_name":"Walter ","full_name":"Littmann, Walter "},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"year":"2019","status":"public","title":"Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten","user_id":"22130","_id":"10258","language":[{"iso":"eng"}]},{"publication":"Fachtagung Mechatronik 2019","citation":{"mla":"Schütte, Jan, et al. “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen.” Fachtagung Mechatronik 2019, Universitätsbibliothek Paderborn, 2019, 2019, doi:10.17619/UNIPB/1-777.","bibtex":"@inproceedings{Schütte_Sextro_Kohl_2019, place={Paderborn}, title={Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen}, DOI={10.17619/UNIPB/1-777}, booktitle={Fachtagung Mechatronik 2019}, publisher={Universitätsbibliothek Paderborn, 2019}, author={Schütte, Jan and Sextro, Walter and Kohl, Sergej}, year={2019} }","ama":"Schütte J, Sextro W, Kohl S. Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen. In: Fachtagung Mechatronik 2019. Universitätsbibliothek Paderborn, 2019; 2019. doi:10.17619/UNIPB/1-777","ieee":"J. Schütte, W. Sextro, and S. Kohl, “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen,” presented at the Fachtagung Mechatronik 2019, Paderborn, 2019, doi: 10.17619/UNIPB/1-777.","apa":"Schütte, J., Sextro, W., & Kohl, S. (2019). Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen. Fachtagung Mechatronik 2019. Fachtagung Mechatronik 2019, Paderborn. https://doi.org/10.17619/UNIPB/1-777","short":"J. Schütte, W. Sextro, S. Kohl, in: Fachtagung Mechatronik 2019, Universitätsbibliothek Paderborn, 2019, Paderborn, 2019.","chicago":"Schütte, Jan, Walter Sextro, and Sergej Kohl. “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen.” In Fachtagung Mechatronik 2019. Paderborn: Universitätsbibliothek Paderborn, 2019, 2019. https://doi.org/10.17619/UNIPB/1-777."},"abstract":[{"lang":"ger","text":"Die Achse als einzige Verbindung zwischen Fahrzeugaufbau und Rad hat die Hauptaufgabe das Rad auf der Straße zuführen. Kinematisch betrachtet übernimmt die Radaufhängung, als Teil der Achse, die Funktion, zwischen Rad und Fahrzeugaufbaueinen vertikalen Freiheitsgrad zur Aufnahme von Fahrbahnunebenheiten zu realisieren. Die aus der RadhubundElastokinematik resultierenden Radstellungsänderungen bestimmen dabei maßgeblich die Fahrdynamik. Zur objektivenBeurteilung von Radaufhängungen ist eine genaue Charakterisierung der Radhub- und Elastokinematik erforderlich.Daher wurde zur Identifikation der kinematischen, elastokinematischen und dynamischen Radaufhängungseigenschaftenam Lehrstuhl für Dynamik und Mechatronik der Universität Paderborn ein Halbachsprüfstand entwickelt. Bei der Auslegungwurde Wert auf ein möglichst breites Einsatzspektrum gelegt. Es können verschiedene Typen von Einzelradaufhängungenin Serien- oder Prototypenkonfiguration am Prüfstand analysiert werden. Er ermöglicht eine Identifikation derdynamischen Radstellungsänderungen unter verschiedenen fahrdynamischen Lastfällen und regellosen Anregungen."}],"date_created":"2020-01-09T10:00:32Z","place":"Paderborn","type":"conference","department":[{"_id":"151"}],"year":"2019","title":"Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen","status":"public","author":[{"first_name":"Jan","orcid":"0000-0001-9025-9742","last_name":"Schütte","full_name":"Schütte, Jan","id":"22109"},{"full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro","id":"21220"},{"last_name":"Kohl","first_name":"Sergej","full_name":"Kohl, Sergej"}],"conference":{"location":"Paderborn","start_date":"27.03.2019","name":"Fachtagung Mechatronik 2019","end_date":"28.03.2019"},"publication_status":"published","date_updated":"2024-05-27T07:49:25Z","language":[{"iso":"ger"}],"_id":"15475","publisher":"Universitätsbibliothek Paderborn, 2019","user_id":"22109","doi":"10.17619/UNIPB/1-777"},{"citation":{"bibtex":"@article{Schemmel_Hemsel_Dymel_Hunstig_Brökelmann_Sextro_2019, title={Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding}, volume={295}, DOI={10.1016/j.sna.2019.04.025}, journal={Sensors and Actuators A: Physical}, author={Schemmel, Reinhard and Hemsel, Tobias and Dymel, Collin and Hunstig, Matthias and Brökelmann, Michael and Sextro, Walter}, year={2019}, pages={653–662} }","ama":"Schemmel R, Hemsel T, Dymel C, Hunstig M, Brökelmann M, Sextro W. Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding. Sensors and Actuators A: Physical. 2019;295:653-662. doi:10.1016/j.sna.2019.04.025","mla":"Schemmel, Reinhard, et al. “Using Complex Multi-Dimensional Vibration Trajectories in Ultrasonic Bonding and Welding.” Sensors and Actuators A: Physical, vol. 295, 2019, pp. 653–62, doi:10.1016/j.sna.2019.04.025.","chicago":"Schemmel, Reinhard, Tobias Hemsel, Collin Dymel, Matthias Hunstig, Michael Brökelmann, and Walter Sextro. “Using Complex Multi-Dimensional Vibration Trajectories in Ultrasonic Bonding and Welding.” Sensors and Actuators A: Physical 295 (2019): 653–62. https://doi.org/10.1016/j.sna.2019.04.025.","short":"R. Schemmel, T. Hemsel, C. Dymel, M. Hunstig, M. Brökelmann, W. Sextro, Sensors and Actuators A: Physical 295 (2019) 653–662.","ieee":"R. Schemmel, T. Hemsel, C. Dymel, M. Hunstig, M. Brökelmann, and W. Sextro, “Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding,” Sensors and Actuators A: Physical, vol. 295, pp. 653–662, 2019, doi: 10.1016/j.sna.2019.04.025.","apa":"Schemmel, R., Hemsel, T., Dymel, C., Hunstig, M., Brökelmann, M., & Sextro, W. (2019). Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding. Sensors and Actuators A: Physical, 295, 653–662. https://doi.org/10.1016/j.sna.2019.04.025"},"quality_controlled":"1","project":[{"name":"Hochleistungsbonden in energieeffizienten Leistungshalbleitermodulen","grant_number":"MP-1-1-015","_id":"93"}],"page":"653 - 662","_id":"10334","user_id":"210","volume":295,"status":"public","date_created":"2019-07-01T07:32:07Z","type":"journal_article","keyword":["Ultrasonic bonding","Ultrasonic welding","Multi-dimensional bonding","Complex vibration","Multi-frequent","Two-dimensional friction model"],"department":[{"_id":"151"}],"publication":"Sensors and Actuators A: Physical","abstract":[{"lang":"eng","text":"Ultrasonic joining is a common industrial process. In the electronics industry it is used to form electrical connections, including those of dissimilar materials. Multiple influencing factors in ultrasonic joining are known and extensively investigated; process parameters like ultrasonic power, bond force, and bonding frequency of the ultrasonic vibration are known to have a high impact on a reliable joining process and need to be adapted for each new application with different geometry or materials. This contribution is focused on increasing ultrasonic power transmitted to the interface and keeping mechanical stresses during ultrasonic bonding low by using a multi-dimensional ultrasonic transducer concept. Bonding results for a new designed connector pin in IGBT-modules achieved by multi- and one-dimensional bonding are discussed."}],"language":[{"iso":"eng"}],"doi":"10.1016/j.sna.2019.04.025","year":"2019","title":"Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding","publication_identifier":{"issn":["0924-4247"]},"author":[{"first_name":"Reinhard","last_name":"Schemmel","full_name":"Schemmel, Reinhard","id":"28647"},{"id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"},{"id":"66833","full_name":"Dymel, Collin","first_name":"Collin","last_name":"Dymel"},{"full_name":"Hunstig, Matthias","last_name":"Hunstig","first_name":"Matthias"},{"last_name":"Brökelmann","first_name":"Michael","full_name":"Brökelmann, Michael"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"date_updated":"2023-09-21T14:12:15Z","intvolume":" 295"},{"publication_status":"published","date_updated":"2023-09-22T07:31:53Z","publication_identifier":{"isbn":["978-981-11-2724-3"]},"author":[{"full_name":"Bender, Amelie","last_name":"Bender","first_name":"Amelie","id":"54290"},{"full_name":"Schinke, Lennart","first_name":"Lennart","last_name":"Schinke"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"title":"Remaining useful lifetime prediction based on adaptive failure thresholds","year":"2019","language":[{"iso":"eng"}],"main_file_link":[{"url":"http://rpsonline.com.sg/proceedings/9789811127243/html/0445.xml","open_access":"1"}],"abstract":[{"text":"Remaining useful lifetime (RUL) predictions as part of a condition monitoring system are focused in more and more research and industrial applications. To establish an efficient and precise estimate of the RUL of a technical product, different uncertainties have to be handled. To minimize the uncertainties of the RUL estimation, a reliable and accurate prognostic approach as well as a good failure threshold are important. Regarding the failure threshold, most often an expert sets a fixed failure threshold. However, neither the a priori known failure threshold nor a fixedthreshold value are feasible in every application. Especially in the case of varying characteristics of the monitored system, an adaptive failure threshold is of great importance concerning the accuracy of the RUL estimation. Rubber-metal-elements, which are used in a wide range of applications for vibration and sound isolation, are mon-itored by thermocouples to allow for lifetime predictions. Therefore, the element’s state is described by its temper-ature during its service life. Aiming to establish accurate RUL predictions of a rubber-metal-element, uncertainties due to nonlinear material characteristics and changing operational conditions have to be considered. Consequently, different temperature-based failure threshold definitions are implemented and compared within a particle filtering approach. ","lang":"eng"}],"publication":"Proceedings of the 29th European Safety and Reliability Conference (ESREL2019)","issue":"29","department":[{"_id":"151"}],"keyword":["RUL prediction","adaptive threshold","prognostics","condition monitoring"],"type":"conference","date_created":"2019-09-30T08:49:19Z","conference":{"location":"Hannover","name":"29th European Safety and Reliability Conference ","start_date":"2019.09.22","end_date":"2019.09.26"},"status":"public","editor":[{"last_name":"Beer","first_name":"Michael","full_name":"Beer, Michael"},{"full_name":"Zio, Enrico","first_name":"Enrico","last_name":"Zio"}],"user_id":"54290","_id":"13460","page":"1262-1269","quality_controlled":"1","citation":{"mla":"Bender, Amelie, et al. “Remaining Useful Lifetime Prediction Based on Adaptive Failure Thresholds.” Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, no. 29, 2019, pp. 1262–69.","bibtex":"@inproceedings{Bender_Schinke_Sextro_2019, title={Remaining useful lifetime prediction based on adaptive failure thresholds}, number={29}, booktitle={Proceedings of the 29th European Safety and Reliability Conference (ESREL2019)}, author={Bender, Amelie and Schinke, Lennart and Sextro, Walter}, editor={Beer, Michael and Zio, Enrico}, year={2019}, pages={1262–1269} }","ama":"Bender A, Schinke L, Sextro W. Remaining useful lifetime prediction based on adaptive failure thresholds. In: Beer M, Zio E, eds. Proceedings of the 29th European Safety and Reliability Conference (ESREL2019). ; 2019:1262-1269.","ieee":"A. Bender, L. Schinke, and W. Sextro, “Remaining useful lifetime prediction based on adaptive failure thresholds,” in Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), Hannover, 2019, no. 29, pp. 1262–1269.","apa":"Bender, A., Schinke, L., & Sextro, W. (2019). Remaining useful lifetime prediction based on adaptive failure thresholds. In M. Beer & E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019) (Issue 29, pp. 1262–1269).","chicago":"Bender, Amelie, Lennart Schinke, and Walter Sextro. “Remaining Useful Lifetime Prediction Based on Adaptive Failure Thresholds.” In Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, 1262–69, 2019.","short":"A. Bender, L. Schinke, W. Sextro, in: M. Beer, E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), 2019, pp. 1262–1269."},"oa":"1"},{"quality_controlled":"1","citation":{"chicago":"Kaul, Thorben, Amelie Bender, and Walter Sextro. “Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems.” In Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, 2340–47, 2019.","short":"T. Kaul, A. Bender, W. Sextro, in: M. Beer, E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), 2019, pp. 2340–2347.","apa":"Kaul, T., Bender, A., & Sextro, W. (2019). Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems. In M. Beer & E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019) (Issue 29, pp. 2340–2347).","ieee":"T. Kaul, A. Bender, and W. Sextro, “Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems,” in Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), Hannover, 2019, no. 29, pp. 2340–2347.","ama":"Kaul T, Bender A, Sextro W. Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems. In: Beer M, Zio E, eds. Proceedings of the 29th European Safety and Reliability Conference (ESREL2019). ; 2019:2340-2347.","bibtex":"@inproceedings{Kaul_Bender_Sextro_2019, title={Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems}, number={29}, booktitle={Proceedings of the 29th European Safety and Reliability Conference (ESREL2019)}, author={Kaul, Thorben and Bender, Amelie and Sextro, Walter}, editor={Beer, Michael and Zio, Enrico}, year={2019}, pages={2340–2347} }","mla":"Kaul, Thorben, et al. “Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems.” Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, no. 29, 2019, pp. 2340–47."},"oa":"1","status":"public","conference":{"start_date":"2019.09.22","name":"Proceedings of the European Safety and Reliability Conference (ESREL2019)","location":"Hannover","end_date":"2019.09.26"},"user_id":"210","editor":[{"full_name":"Beer, Michael","last_name":"Beer","first_name":"Michael"},{"full_name":"Zio, Enrico","last_name":"Zio","first_name":"Enrico"}],"page":"2340-2347","_id":"13461","abstract":[{"text":"As the emerging digitalization of technical systems offers immense opportunities to be exploited by means of bigdata analysis, ubiquitous computing and largely networked systems, the digital twin comes into focus to combineall these aspects to an attendant model of an individual system during design phase as well as during operation.Since state-of-art technical systems are growing increasingly complex due to inherent intelligence and increasingfunctionality, i. e. autonomous behavior so far, it becomes considerably challenging to ensure reliability for thosesystems. Many methods were developed to support a reliability focused design or reliability-by-design approachesto tackle this challenge during design process. In field, data-based methods, i. e. condition monitoring enabled bythe rise of machine learning approaches, are exploited to ensure a reliable operation based on the current conditionof the monitored system. In order to take advantage of existing models of system reliability during design phaseand condition monitoring systems during operation, a method is proposed to combine both approaches in order toset up a digital twin with focus on system reliability. The base model of the digital twin is taken from the systemreliability model from the design phase and is used during operation and therein updated to the current reliabilitybased on the state estimation of the condition monitoring system. The approach is illustrated with a case study of arolling bearing test rig.","lang":"eng"}],"issue":"29","publication":"Proceedings of the 29th European Safety and Reliability Conference (ESREL2019)","type":"conference","department":[{"_id":"151"}],"date_created":"2019-09-30T09:16:16Z","publication_status":"published","date_updated":"2023-09-28T08:49:27Z","year":"2019","title":"Digital Twin for Reliability Analysis During Design and Operation of Mechatronic Systems","author":[{"first_name":"Thorben","last_name":"Kaul","full_name":"Kaul, Thorben","id":"14802"},{"full_name":"Bender, Amelie","last_name":"Bender","first_name":"Amelie","id":"54290"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"}],"publication_identifier":{"isbn":[" 978-981-11-2724-3"]},"main_file_link":[{"url":"http://rpsonline.com.sg/proceedings/9789811127243/pdf/0876.pdf","open_access":"1"}],"language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"_id":"9987","page":"1025-1033","user_id":"55222","author":[{"last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie","id":"54290"},{"full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro","id":"21220"}],"year":"2018","title":"A particle filtering approach for temperature based prognostics","status":"public","date_updated":"2019-09-30T08:01:18Z","place":"Trondheim, Norway","date_created":"2019-05-27T09:56:44Z","department":[{"_id":"151"}],"type":"conference","citation":{"bibtex":"@inproceedings{Bender_Sextro_2018, place={Trondheim, Norway}, title={A particle filtering approach for temperature based prognostics}, booktitle={Safety and Reliability – Safe Societies in a Changing World}, author={Bender, Amelie and Sextro, Walter}, year={2018}, pages={1025–1033} }","ama":"Bender A, Sextro W. A particle filtering approach for temperature based prognostics. In: Safety and Reliability – Safe Societies in a Changing World. Trondheim, Norway; 2018:1025-1033.","mla":"Bender, Amelie, and Walter Sextro. “A Particle Filtering Approach for Temperature Based Prognostics.” Safety and Reliability – Safe Societies in a Changing World, 2018, pp. 1025–33.","chicago":"Bender, Amelie, and Walter Sextro. “A Particle Filtering Approach for Temperature Based Prognostics.” In Safety and Reliability – Safe Societies in a Changing World, 1025–33. Trondheim, Norway, 2018.","short":"A. Bender, W. Sextro, in: Safety and Reliability – Safe Societies in a Changing World, Trondheim, Norway, 2018, pp. 1025–1033.","ieee":"A. Bender and W. Sextro, “A particle filtering approach for temperature based prognostics,” in Safety and Reliability – Safe Societies in a Changing World, 2018, pp. 1025–1033.","apa":"Bender, A., & Sextro, W. (2018). A particle filtering approach for temperature based prognostics. In Safety and Reliability – Safe Societies in a Changing World (pp. 1025–1033). Trondheim, Norway."},"publication":"Safety and Reliability – Safe Societies in a Changing World","abstract":[{"text":"Rubber-metal-elements are used in a wide range of applications for vibration and sound isola- tion. Nowadays it is state of the art to calculate the lifetimes of these elements under mechanical stress prior to their service life. To establish more reliable and safer rubber-metal-elements, continuous monitoring by dif- ferent sensors can be used. Especially prognostics enable a rise in reliability, availability and safety. To estab- lish these advantages, estimating the remaining useful lifetime of rubber-metal-elements should be realized during its service life based on current information on its condition. Therefore a suitable measure to monitor the condition of the element is necessary. This work focuses on temperature signals. This approach allows in- cluding the ambient temperature and thereby involving changing operating conditions. For estimating the RUL of rubber-metal-elements a model-based prognostics approach based on particle filtering is proposed. Its performance is analyzed regarding relevant parameters to enable the best performance for the applied data.","lang":"eng"}],"quality_controlled":"1"},{"date_created":"2019-05-27T10:13:10Z","type":"journal_article","department":[{"_id":"151"}],"publication":"ACTUATOR 2018; 16th International Conference on New Actuators","citation":{"bibtex":"@article{Dunst_Bornmann_Hemsel_Littmann_Sextro_2018, title={Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders}, journal={ACTUATOR 2018; 16th International Conference on New Actuators}, author={Dunst, Paul and Bornmann, Peter and Hemsel, Tobias and Littmann, Walter. and Sextro, Walter}, year={2018}, pages={142–145} }","short":"P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, W. Sextro, ACTUATOR 2018; 16th International Conference on New Actuators (2018) 142–145.","ama":"Dunst P, Bornmann P, Hemsel T, Littmann W, Sextro W. Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders. ACTUATOR 2018; 16th International Conference on New Actuators. 2018:142-145.","chicago":"Dunst, Paul, Peter Bornmann, Tobias Hemsel, Walter. Littmann, and Walter Sextro. “Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders.” ACTUATOR 2018; 16th International Conference on New Actuators, 2018, 142–45.","ieee":"P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, and W. Sextro, “Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders,” ACTUATOR 2018; 16th International Conference on New Actuators, pp. 142–145, 2018.","apa":"Dunst, P., Bornmann, P., Hemsel, T., Littmann, W., & Sextro, W. (2018). Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders. ACTUATOR 2018; 16th International Conference on New Actuators, 142–145.","mla":"Dunst, Paul, et al. “Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders.” ACTUATOR 2018; 16th International Conference on New Actuators, 2018, pp. 142–45."},"quality_controlled":"1","abstract":[{"lang":"eng","text":"The handling of fine powders is an important task in modern production processes. However, as fine powders strongly tend to adhesion and agglomeration, their processing with conventional methods is difficult or impossible. Especially when processing small amounts of highly sensitive fine powders, conventional methods reach their technical limits. In process steps such as dosing, transport, and especially mixing of fine powders new methods are required. Apart from the well-known method of manipulating powder properties by adding chemical additives, this contribution aims at improving the handling of dry fine powders by using vibrations at different frequencies. Modules are presented, which enable the continuous dosing, the homogeneous mixing and the transport of dry fine powders. Finally, these modules are combined for the production of a homogeneous mixture of two dry fine powders."}],"page":"142-145","language":[{"iso":"eng"}],"_id":"9990","user_id":"55222","title":"Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders","year":"2018","status":"public","author":[{"id":"22130","first_name":"Paul","last_name":"Dunst","full_name":"Dunst, Paul"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"},{"first_name":"Walter.","last_name":"Littmann","full_name":"Littmann, Walter."},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"}],"date_updated":"2019-09-16T09:45:13Z"},{"date_updated":"2019-09-16T09:44:54Z","title":"Vibration-Assisted Handling of Dry Fine Powders","status":"public","year":"2018","author":[{"first_name":"Paul","last_name":"Dunst","full_name":"Dunst, Paul","id":"22130"},{"last_name":"Bornmann","first_name":"Peter","full_name":"Bornmann, Peter"},{"last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias","id":"210"},{"full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro","id":"21220"}],"doi":"10.3390/act7020018","user_id":"55222","page":"1-11","language":[{"iso":"eng"}],"_id":"9991","abstract":[{"lang":"eng","text":"Abstract:Since fine powders tend strongly to adhesion and agglomeration, their processing withconventional methods is difficult or impossible. Typically, in order to enable the handling of finepowders, chemicals are added to increase the flowability and reduce adhesion. This contributionshows that instead of additives also vibrations can be used to increase the flowability, to reduceadhesion and cohesion, and thus to enable or improve processes such as precision dosing, mixing,and transport of very fine powders. The methods for manipulating powder properties are describedin detail and prototypes for experimental studies are presented. It is shown that the handling of finepowders can be improved by using low-frequency, high-frequency or a combination of low- andhigh-frequency vibration."}],"quality_controlled":"1","publication":"Actuators 2018, 7(2).","citation":{"chicago":"Dunst, Paul, Peter Bornmann, Tobias Hemsel, and Walter Sextro. “Vibration-Assisted Handling of Dry Fine Powders.” Actuators 2018, 7(2)., 2018, 1–11. https://doi.org/10.3390/act7020018.","short":"P. Dunst, P. Bornmann, T. Hemsel, W. Sextro, Actuators 2018, 7(2). (2018) 1–11.","apa":"Dunst, P., Bornmann, P., Hemsel, T., & Sextro, W. (2018). Vibration-Assisted Handling of Dry Fine Powders. Actuators 2018, 7(2)., 1–11. https://doi.org/10.3390/act7020018","ieee":"P. Dunst, P. Bornmann, T. Hemsel, and W. Sextro, “Vibration-Assisted Handling of Dry Fine Powders,” Actuators 2018, 7(2)., pp. 1–11, 2018.","ama":"Dunst P, Bornmann P, Hemsel T, Sextro W. Vibration-Assisted Handling of Dry Fine Powders. Actuators 2018, 7(2). 2018:1-11. doi:10.3390/act7020018","bibtex":"@article{Dunst_Bornmann_Hemsel_Sextro_2018, title={Vibration-Assisted Handling of Dry Fine Powders}, DOI={10.3390/act7020018}, journal={Actuators 2018, 7(2).}, author={Dunst, Paul and Bornmann, Peter and Hemsel, Tobias and Sextro, Walter}, year={2018}, pages={1–11} }","mla":"Dunst, Paul, et al. “Vibration-Assisted Handling of Dry Fine Powders.” Actuators 2018, 7(2)., 2018, pp. 1–11, doi:10.3390/act7020018."},"type":"journal_article","keyword":["powder handling","flowability","dosing","transport","mixing","dispersion","piezoelectricactuators","vibrations"],"department":[{"_id":"151"}],"date_created":"2019-05-27T10:16:16Z"},{"language":[{"iso":"eng"}],"_id":"9992","page":"1-6","user_id":"210","author":[{"last_name":"Dymel","first_name":"Collin","full_name":"Dymel, Collin","id":"66833"},{"full_name":"Eichwald, Paul","last_name":"Eichwald","first_name":"Paul"},{"first_name":"Reinhard","last_name":"Schemmel","full_name":"Schemmel, Reinhard","id":"28647"},{"full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel","id":"210"},{"first_name":"Michael","last_name":"Brökelmann","full_name":"Brökelmann, Michael"},{"last_name":"Hunstig","first_name":"Matthias","full_name":"Hunstig, Matthias"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"title":"Numerical and statistical investigation of weld formation in a novel two-dimensional copper-copper bonding process","status":"public","year":"2018","date_updated":"2020-05-07T05:33:56Z","date_created":"2019-05-27T10:18:10Z","department":[{"_id":"151"}],"type":"conference","keyword":["ultrasonic wire-bonding","bond-tool design","parameter identification","statistical engineering"],"citation":{"mla":"Dymel, Collin, et al. “Numerical and Statistical Investigation of Weld Formation in a Novel Two-Dimensional Copper-Copper Bonding Process.” (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany), 2018, pp. 1–6.","ama":"Dymel C, Eichwald P, Schemmel R, et al. Numerical and statistical investigation of weld formation in a novel two-dimensional copper-copper bonding process. In: (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany). ; 2018:1-6.","bibtex":"@inproceedings{Dymel_Eichwald_Schemmel_Hemsel_Brökelmann_Hunstig_Sextro_2018, title={Numerical and statistical investigation of weld formation in a novel two-dimensional copper-copper bonding process}, booktitle={(Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany)}, author={Dymel, Collin and Eichwald, Paul and Schemmel, Reinhard and Hemsel, Tobias and Brökelmann, Michael and Hunstig, Matthias and Sextro, Walter}, year={2018}, pages={1–6} }","apa":"Dymel, C., Eichwald, P., Schemmel, R., Hemsel, T., Brökelmann, M., Hunstig, M., & Sextro, W. (2018). Numerical and statistical investigation of weld formation in a novel two-dimensional copper-copper bonding process. In (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany) (pp. 1–6).","ieee":"C. Dymel et al., “Numerical and statistical investigation of weld formation in a novel two-dimensional copper-copper bonding process,” in (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany), 2018, pp. 1–6.","chicago":"Dymel, Collin, Paul Eichwald, Reinhard Schemmel, Tobias Hemsel, Michael Brökelmann, Matthias Hunstig, and Walter Sextro. “Numerical and Statistical Investigation of Weld Formation in a Novel Two-Dimensional Copper-Copper Bonding Process.” In (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany), 1–6, 2018.","short":"C. Dymel, P. Eichwald, R. Schemmel, T. Hemsel, M. Brökelmann, M. Hunstig, W. Sextro, in: (Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany), 2018, pp. 1–6."},"publication":"(Proceedings of 7th Electronics System-Integration Technology Conference, Dresden, Germany)","project":[{"name":"Hochleistungsbonden in energieeffizienten Leistungshalbleitermodulen","grant_number":"MP-1-1-015","_id":"93"}],"abstract":[{"text":"State-of-the-art industrial compact high power electronic packages require copper-copper interconnections with larger cross sections made by ultrasonic bonding. In comparison to aluminium-copper, copper-copper interconnections require increased normal forces and ultrasonic power, which might lead to substrate damage due to increased mechanical stresses. One option to raise friction energy without increasing vibration amplitude between wire and substrate or bonding force is the use of two-dimensional vibration. The first part of this contribution reports on the development of a novel bonding system that executes two-dimensional vibrations of a tool-tip to bond a nail- like pin onto a copper substrate. Since intermetallic bonds only form properly when surfaces are clean, oxide free and activated, the geometries of tool-tip and pin were optimised using finite element analysis. To maximize the area of the bonded annulus the distribution of normal pressure was optimized by varying the convexity of the bottom side of the pin. Second, a statistical model obtained from an experimental parameter study shows the influence of different bonding parameters on the bond result. To find bonding parameters with the minimum number of tests, the experiments have been planned using a D-optimal experimental design approach.","lang":"eng"}],"quality_controlled":"1"}]