[{"volume":20,"author":[{"first_name":"Maik","last_name":"Mracek","full_name":"Mracek, Maik"},{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"full_name":"Sattel, Thomas","last_name":"Sattel","first_name":"Thomas"},{"first_name":"Piotr","full_name":"Vasiljev, Piotr","last_name":"Vasiljev"},{"last_name":"Wallaschek","full_name":"Wallaschek, Jörg","first_name":"Jörg"}],"date_updated":"2022-01-06T07:04:16Z","doi":"10.1007/s10832-007-9123-5","publication_identifier":{"issn":["1385-3449"]},"page":"153-158","intvolume":"        20","citation":{"ama":"Mracek M, Hemsel T, Sattel T, Vasiljev P, Wallaschek J. Driving concepts for bundled ultrasonic linear motors. <i>Journal of Electroceramics</i>. 2008;20(3-4):153-158. doi:<a href=\"https://doi.org/10.1007/s10832-007-9123-5\">10.1007/s10832-007-9123-5</a>","ieee":"M. Mracek, T. Hemsel, T. Sattel, P. Vasiljev, and J. Wallaschek, “Driving concepts for bundled ultrasonic linear motors,” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, pp. 153–158, 2008.","chicago":"Mracek, Maik, Tobias Hemsel, Thomas Sattel, Piotr Vasiljev, and Jörg Wallaschek. “Driving Concepts for Bundled Ultrasonic Linear Motors.” <i>Journal of Electroceramics</i> 20, no. 3–4 (2008): 153–58. <a href=\"https://doi.org/10.1007/s10832-007-9123-5\">https://doi.org/10.1007/s10832-007-9123-5</a>.","apa":"Mracek, M., Hemsel, T., Sattel, T., Vasiljev, P., &#38; Wallaschek, J. (2008). Driving concepts for bundled ultrasonic linear motors. <i>Journal of Electroceramics</i>, <i>20</i>(3–4), 153–158. <a href=\"https://doi.org/10.1007/s10832-007-9123-5\">https://doi.org/10.1007/s10832-007-9123-5</a>","bibtex":"@article{Mracek_Hemsel_Sattel_Vasiljev_Wallaschek_2008, title={Driving concepts for bundled ultrasonic linear motors}, volume={20}, DOI={<a href=\"https://doi.org/10.1007/s10832-007-9123-5\">10.1007/s10832-007-9123-5</a>}, number={3–4}, journal={Journal of Electroceramics}, publisher={Springer US}, author={Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Vasiljev, Piotr and Wallaschek, Jörg}, year={2008}, pages={153–158} }","short":"M. Mracek, T. Hemsel, T. Sattel, P. Vasiljev, J. Wallaschek, Journal of Electroceramics 20 (2008) 153–158.","mla":"Mracek, Maik, et al. “Driving Concepts for Bundled Ultrasonic Linear Motors.” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, Springer US, 2008, pp. 153–58, doi:<a href=\"https://doi.org/10.1007/s10832-007-9123-5\">10.1007/s10832-007-9123-5</a>."},"department":[{"_id":"151"}],"user_id":"55222","_id":"9571","type":"journal_article","status":"public","date_created":"2019-04-29T12:27:25Z","publisher":"Springer US","title":"Driving concepts for bundled ultrasonic linear motors","issue":"3-4","quality_controlled":"1","year":"2008","language":[{"iso":"eng"}],"keyword":["Ultrasonic linear motor","High power","Control","Modeling","Characteristics"],"publication":"Journal of Electroceramics","abstract":[{"text":"Several positioning tasks demand translatory drive instead of rotary motion. To achieve drives that are capable, e.g., to drive the sunroof of a car or to lift a car's window, multiple miniaturized motors can be combined. But in this case many other questions arise: The electromechanical behavior of the individual motors differs slightly, the motor characteristics are strongly dependent on the driving parameters and the driven load, many applications need some extra power for special cases like overcoming higher forces periodically. Thus, the bundle of motors has to act well-organized and at last controlled to get an optimized drive that is not oversized and costly.","lang":"eng"}]},{"title":"The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems","date_created":"2019-04-29T12:36:03Z","author":[{"first_name":"Christoph","last_name":"Sondermann-Wölke","full_name":"Sondermann-Wölke, Christoph"},{"last_name":"Geisler","full_name":"Geisler, Jens","first_name":"Jens"},{"first_name":"Thomas","last_name":"Müler","full_name":"Müler, Thomas"},{"full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar"},{"first_name":"Joachim","last_name":"Böcker","full_name":"Böcker, Joachim"}],"date_updated":"2022-01-06T07:04:16Z","citation":{"apa":"Sondermann-Wölke, C., Geisler, J., Müler, T., Trächtler, A., &#38; Böcker, J. (2008). The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems. In <i>ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)</i>. New York.","bibtex":"@inproceedings{Sondermann-Wölke_Geisler_Müler_Trächtler_Böcker_2008, place={New York}, title={The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems}, booktitle={ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Müler, Thomas and Trächtler, Ansgar and Böcker, Joachim}, year={2008} }","mla":"Sondermann-Wölke, Christoph, et al. “The Active Guidance Module of a Rail-Bound Vehicle as an Application for the Dependability Oriented Design in Self-Optimizing Systems.” <i>ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)</i>, 2008.","short":"C. Sondermann-Wölke, J. Geisler, T. Müler, A. Trächtler, J. Böcker, in: ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE), New York, 2008.","ama":"Sondermann-Wölke C, Geisler J, Müler T, Trächtler A, Böcker J. The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems. In: <i>ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)</i>. New York; 2008.","chicago":"Sondermann-Wölke, Christoph, Jens Geisler, Thomas Müler, Ansgar Trächtler, and Joachim Böcker. “The Active Guidance Module of a Rail-Bound Vehicle as an Application for the Dependability Oriented Design in Self-Optimizing Systems.” In <i>ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)</i>. New York, 2008.","ieee":"C. Sondermann-Wölke, J. Geisler, T. Müler, A. Trächtler, and J. Böcker, “The active guidance module of a rail-bound vehicle as an application for the dependability oriented design in self-optimizing systems,” in <i>ASME 2008 -- International Design Engineering Technical Conferences \\&#38; Computers and Information in Engineering Conference (IDETC/CIE)</i>, 2008."},"place":"New York","year":"2008","language":[{"iso":"eng"}],"department":[{"_id":"151"}],"user_id":"55222","_id":"9573","status":"public","abstract":[{"lang":"eng","text":"Integrating dependability in self-optimizing systems is a challenging task. Self-optimizing systems incorporate on the one hand the opportunity to apply novel solutions to complex mechatronic systems, but on the other hand constitute a possible risk because of non-determined behavior. The dependability concept in this paper covers both aspects: Increasing safety with selfoptimization and minimizing the risk of self-optimization. This dependability concept is combined with the self-optimization process of the active guidance module which is currently under development at the Collaborative Research Center 614 at the University of Paderborn."}],"publication":"ASME 2008 -- International Design Engineering Technical Conferences \\& Computers and Information in Engineering Conference (IDETC/CIE)","type":"conference"},{"type":"journal_article","status":"public","_id":"9574","user_id":"55222","department":[{"_id":"151"}],"publication_identifier":{"issn":["1385-3449"]},"citation":{"chicago":"Stroop, Ralf, David Oliva Uribe, Melisa Orta Martinez, Michael Brökelmann, Tobias Hemsel, and Jörg Wallaschek. “Tactile Tissue Characterisation by Piezoelectric Systems.” <i>Journal of Electroceramics</i> 20, no. 3–4 (2008): 237–41. <a href=\"https://doi.org/10.1007/s10832-007-9183-6\">https://doi.org/10.1007/s10832-007-9183-6</a>.","ieee":"R. Stroop, D. O. Uribe, M. O. Martinez, M. Brökelmann, T. Hemsel, and J. Wallaschek, “Tactile tissue characterisation by piezoelectric systems,” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, pp. 237–241, 2008.","ama":"Stroop R, Uribe DO, Martinez MO, Brökelmann M, Hemsel T, Wallaschek J. Tactile tissue characterisation by piezoelectric systems. <i>Journal of Electroceramics</i>. 2008;20(3-4):237-241. doi:<a href=\"https://doi.org/10.1007/s10832-007-9183-6\">10.1007/s10832-007-9183-6</a>","bibtex":"@article{Stroop_Uribe_Martinez_Brökelmann_Hemsel_Wallaschek_2008, title={Tactile tissue characterisation by piezoelectric systems}, volume={20}, DOI={<a href=\"https://doi.org/10.1007/s10832-007-9183-6\">10.1007/s10832-007-9183-6</a>}, number={3–4}, journal={Journal of Electroceramics}, publisher={Springer US}, author={Stroop, Ralf and Uribe, David Oliva and Martinez, Melisa Orta and Brökelmann, Michael and Hemsel, Tobias and Wallaschek, Jörg}, year={2008}, pages={237–241} }","short":"R. Stroop, D.O. Uribe, M.O. Martinez, M. Brökelmann, T. Hemsel, J. Wallaschek, Journal of Electroceramics 20 (2008) 237–241.","mla":"Stroop, Ralf, et al. “Tactile Tissue Characterisation by Piezoelectric Systems.” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, Springer US, 2008, pp. 237–41, doi:<a href=\"https://doi.org/10.1007/s10832-007-9183-6\">10.1007/s10832-007-9183-6</a>.","apa":"Stroop, R., Uribe, D. O., Martinez, M. O., Brökelmann, M., Hemsel, T., &#38; Wallaschek, J. (2008). Tactile tissue characterisation by piezoelectric systems. <i>Journal of Electroceramics</i>, <i>20</i>(3–4), 237–241. <a href=\"https://doi.org/10.1007/s10832-007-9183-6\">https://doi.org/10.1007/s10832-007-9183-6</a>"},"page":"237-241","intvolume":"        20","date_updated":"2022-01-06T07:04:16Z","author":[{"first_name":"Ralf","full_name":"Stroop, Ralf","last_name":"Stroop"},{"first_name":"David Oliva","full_name":"Uribe, David Oliva","last_name":"Uribe"},{"full_name":"Martinez, Melisa Orta","last_name":"Martinez","first_name":"Melisa Orta"},{"full_name":"Brökelmann, Michael","last_name":"Brökelmann","first_name":"Michael"},{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"first_name":"Jörg","full_name":"Wallaschek, Jörg","last_name":"Wallaschek"}],"volume":20,"doi":"10.1007/s10832-007-9183-6","publication":"Journal of Electroceramics","abstract":[{"text":"For devices having non-linear contact, load plays a fundamental role. Variations in the characteristics of the load cause change in eigenfrequency and amplitude of the vibration. In most technical applications, this unwanted behaviour is cancelled by the use of control algorithms. However, multiple applications, like bond quality monitoring or chemical and pressure sensors, have found that the load may be characterised by interpreting the change in characteristics of a resonant vibrating device used as a sensor. Surgical resection of tumours is a very difficult task. After localising the tumour by the use of imaging techniques, the resection demands the surgeon to decide where and what to resect based on visual and tactile differentiation of tumour and healthy tissue. Exactness of this process could be enhanced if we can provide the surgeon with a device capable of evaluating mechanical characteristics of the tissue much more accurately than the surgeon himself can do. As the mechanical characteristics of tumour and healthy tissue differ but slightly, the task is to design a system with high sensitivity. Therefore, we have developed a resonant actuator-sensor that allows the differentiation among distinct media that have similar mechanical characteristics to tumour and healthy tissue using a piezoelectric bimorph. The design is based on the detection and evaluation of frequency shift and amplitude variation of the fundamental and higher harmonics using one layer for the resonant excitation of vibration and the other one as the sensing element.","lang":"eng"}],"keyword":["Piezo ceramics","Bimorph","Tactile sensor","Tumour tissue"],"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"3-4","year":"2008","publisher":"Springer US","date_created":"2019-04-29T12:50:44Z","title":"Tactile tissue characterisation by piezoelectric systems"},{"keyword":["Contact measurements","Vibro-impact","Ultrasonic application"],"language":[{"iso":"eng"}],"publication":"Journal of Electroceramics","abstract":[{"lang":"eng","text":"Many ultrasonic processes are based on the mechanical contact of oscillating parts. Within ultrasonic machining (drilling, milling, grinding) micro impacts lead to abrasion at the processed workpiece and hopefully do not damage the tool. In ultrasonic motors ideally neither part gets worn. Thus the appropriate design of contact partners as well as their kinematics is a substantial task during the development of such devices. A first step to optimize contact mechanics is to understand their behavior and dependencies on parameter variations, such as vibration amplitude and pre-stress of the impacting parts. For a detailed understanding models validated with convincing experimental data from measurements are absolutely essential. This paper focuses on simple vibro-impact experiments which can be used as benchmark data for future models. The setup of the experiment and first experimental investigations are described in detail."}],"publisher":"Springer US","date_created":"2019-04-29T13:06:13Z","title":"Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes","quality_controlled":"1","issue":"3-4","year":"2008","_id":"9575","department":[{"_id":"151"}],"user_id":"55222","type":"journal_article","status":"public","date_updated":"2022-01-06T07:04:16Z","volume":20,"author":[{"full_name":"Twiefel, Jens","last_name":"Twiefel","first_name":"Jens"},{"last_name":"Potthast","full_name":"Potthast, Christian","first_name":"Christian"},{"last_name":"Mracek","full_name":"Mracek, Maik","first_name":"Maik"},{"first_name":"Tobias","last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias"},{"first_name":"Thomas","full_name":"Sattel, Thomas","last_name":"Sattel"},{"full_name":"Wallaschek, Jörg","last_name":"Wallaschek","first_name":"Jörg"}],"doi":"10.1007/s10832-007-9169-4","publication_identifier":{"issn":["1385-3449"]},"intvolume":"        20","page":"209-214","citation":{"ieee":"J. Twiefel, C. Potthast, M. Mracek, T. Hemsel, T. Sattel, and J. Wallaschek, “Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes,” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, pp. 209–214, 2008.","chicago":"Twiefel, Jens, Christian Potthast, Maik Mracek, Tobias Hemsel, Thomas Sattel, and Jörg Wallaschek. “Fundamental Experiments as Benchmark Problems for Modeling Ultrasonic Micro-Impact Processes.” <i>Journal of Electroceramics</i> 20, no. 3–4 (2008): 209–14. <a href=\"https://doi.org/10.1007/s10832-007-9169-4\">https://doi.org/10.1007/s10832-007-9169-4</a>.","ama":"Twiefel J, Potthast C, Mracek M, Hemsel T, Sattel T, Wallaschek J. Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes. <i>Journal of Electroceramics</i>. 2008;20(3-4):209-214. doi:<a href=\"https://doi.org/10.1007/s10832-007-9169-4\">10.1007/s10832-007-9169-4</a>","apa":"Twiefel, J., Potthast, C., Mracek, M., Hemsel, T., Sattel, T., &#38; Wallaschek, J. (2008). Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes. <i>Journal of Electroceramics</i>, <i>20</i>(3–4), 209–214. <a href=\"https://doi.org/10.1007/s10832-007-9169-4\">https://doi.org/10.1007/s10832-007-9169-4</a>","bibtex":"@article{Twiefel_Potthast_Mracek_Hemsel_Sattel_Wallaschek_2008, title={Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes}, volume={20}, DOI={<a href=\"https://doi.org/10.1007/s10832-007-9169-4\">10.1007/s10832-007-9169-4</a>}, number={3–4}, journal={Journal of Electroceramics}, publisher={Springer US}, author={Twiefel, Jens and Potthast, Christian and Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Wallaschek, Jörg}, year={2008}, pages={209–214} }","mla":"Twiefel, Jens, et al. “Fundamental Experiments as Benchmark Problems for Modeling Ultrasonic Micro-Impact Processes.” <i>Journal of Electroceramics</i>, vol. 20, no. 3–4, Springer US, 2008, pp. 209–14, doi:<a href=\"https://doi.org/10.1007/s10832-007-9169-4\">10.1007/s10832-007-9169-4</a>.","short":"J. Twiefel, C. Potthast, M. Mracek, T. Hemsel, T. Sattel, J. Wallaschek, Journal of Electroceramics 20 (2008) 209–214."}},{"quality_controlled":"1","publication_identifier":{"issn":["1075-6787"]},"citation":{"apa":"Uribe, D. O., Stroop, R., Hemsel, T., &#38; Wallaschek, J. (2008). Development of a biomedical tissue differentiation system using piezoelectric actuators. In <i>Frequency Control Symposium, 2008 IEEE International</i> (pp. 91–94). <a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">https://doi.org/10.1109/FREQ.2008.4622963</a>","mla":"Uribe, David Oliva, et al. “Development of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.” <i>Frequency Control Symposium, 2008 IEEE International</i>, 2008, pp. 91–94, doi:<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>.","bibtex":"@inproceedings{Uribe_Stroop_Hemsel_Wallaschek_2008, title={Development of a biomedical tissue differentiation system using piezoelectric actuators}, DOI={<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>}, booktitle={Frequency Control Symposium, 2008 IEEE International}, author={Uribe, David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg}, year={2008}, pages={91–94} }","short":"D.O. Uribe, R. Stroop, T. Hemsel, J. Wallaschek, in: Frequency Control Symposium, 2008 IEEE International, 2008, pp. 91–94.","ama":"Uribe DO, Stroop R, Hemsel T, Wallaschek J. Development of a biomedical tissue differentiation system using piezoelectric actuators. In: <i>Frequency Control Symposium, 2008 IEEE International</i>. ; 2008:91-94. doi:<a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">10.1109/FREQ.2008.4622963</a>","chicago":"Uribe, David Oliva, Ralf Stroop, Tobias Hemsel, and Jörg Wallaschek. “Development of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.” In <i>Frequency Control Symposium, 2008 IEEE International</i>, 91–94, 2008. <a href=\"https://doi.org/10.1109/FREQ.2008.4622963\">https://doi.org/10.1109/FREQ.2008.4622963</a>.","ieee":"D. O. Uribe, R. Stroop, T. Hemsel, and J. Wallaschek, “Development of a biomedical tissue differentiation system using piezoelectric actuators,” in <i>Frequency Control Symposium, 2008 IEEE International</i>, 2008, pp. 91–94."},"page":"91-94","year":"2008","author":[{"full_name":"Uribe, David Oliva","last_name":"Uribe","first_name":"David Oliva"},{"first_name":"Ralf","last_name":"Stroop","full_name":"Stroop, Ralf"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"full_name":"Wallaschek, Jörg","last_name":"Wallaschek","first_name":"Jörg"}],"date_created":"2019-04-29T13:07:39Z","date_updated":"2022-01-06T07:04:16Z","doi":"10.1109/FREQ.2008.4622963","title":"Development of a biomedical tissue differentiation system using piezoelectric actuators","type":"conference","publication":"Frequency Control Symposium, 2008 IEEE International","status":"public","abstract":[{"text":"In neurosurgery, delineation of tumor boundaries during resection of brain tumors is of substantial relevance. During operation distinction between tumor and healthy tissue rely on the abilities of the surgeon based on visual and tactile differentiation. In this paper a high sensitivity actuator-sensor system using a piezoelectric bimorph is presented. Frequency shift and transfer function of the bimorphpsilas voltages are detected and evaluated. Sensorpsilas sensitivity is evaluated using two frequency controls strategies: A phase-locked loop (PLL) and a self-oscillating circuit. Results of measurements conducted on gel-phantoms are presented and discussed.","lang":"eng"}],"user_id":"55222","department":[{"_id":"151"}],"_id":"9576","language":[{"iso":"eng"}],"keyword":["biomedical measurement","brain","cancer","neurophysiology","phantoms","phase locked loops","piezoelectric actuators","surgery","tactile sensors","transfer functions","tumours","PLL","biomedical tissue differentiation system","brain tumor resection","frequency control","frequency shift","gel-phantom","high sensitivity actuator-sensor system","neurosurgery","phase-locked loop","piezoelectric actuators","piezoelectric bimorph","self-oscillating circuit","sensor sensitivity","tactile differentiation","tactile sensor system","transfer function","tumor boundary","visual differentiation","Biomedical measurements","Circuits","Frequency control","Neoplasms","Neurosurgery","Phase locked loops","Piezoelectric actuators","Surges","Transfer functions","Voltage"]},{"date_updated":"2022-01-06T12:22:51Z","ipc":"H01L 41/09, B60J 1/17","date_created":"2019-04-29T12:28:53Z","author":[{"first_name":"Volker","full_name":"Rischmueller, Volker","last_name":"Rischmueller"},{"full_name":"Wallaschek, Jörg","last_name":"Wallaschek","first_name":"Jörg"},{"full_name":"Froehlich, Peter","last_name":"Froehlich","first_name":"Peter"},{"first_name":"Walter","last_name":"Haussecker","full_name":"Haussecker, Walter"},{"full_name":"Rieger, Vincent","last_name":"Rieger","first_name":"Vincent"},{"last_name":"Twiefel","full_name":"Twiefel, Jens","first_name":"Jens"},{"last_name":"Guenther","full_name":"Guenther, Dirk","first_name":"Dirk"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"}],"ipn":"EP000002156480B1","title":"Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit","application_number":"DE102007021339A1 ","application_date":"07.05.2007","year":"2008","citation":{"ama":"Rischmueller V, Wallaschek J, Froehlich P, et al. Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit. Published online 2008.","ieee":"V. Rischmueller <i>et al.</i>, “Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit.” 2008.","chicago":"Rischmueller, Volker, Jörg Wallaschek, Peter Froehlich, Walter Haussecker, Vincent Rieger, Jens Twiefel, Dirk Guenther, and Tobias Hemsel. “Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit,” 2008.","short":"V. Rischmueller, J. Wallaschek, P. Froehlich, W. Haussecker, V. Rieger, J. Twiefel, D. Guenther, T. Hemsel, (2008).","bibtex":"@article{Rischmueller_Wallaschek_Froehlich_Haussecker_Rieger_Twiefel_Guenther_Hemsel_2008, title={Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit}, author={Rischmueller, Volker and Wallaschek, Jörg and Froehlich, Peter and Haussecker, Walter and Rieger, Vincent and Twiefel, Jens and Guenther, Dirk and Hemsel, Tobias}, year={2008} }","mla":"Rischmueller, Volker, et al. <i>Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit</i>. 2008.","apa":"Rischmueller, V., Wallaschek, J., Froehlich, P., Haussecker, W., Rieger, V., Twiefel, J., Guenther, D., &#38; Hemsel, T. (2008). <i>Patent EP2156480: Piezoelektrische Antriebsvorrichtung / Piezoelectric Drive Unit</i>."},"publication_date":"21.12.2011","_id":"9572","user_id":"210","department":[{"_id":"151"}],"type":"patent","status":"public"},{"type":"conference","publication":"27. Internationales Mju-Symposium/Bremsen-Fachtagung","status":"public","_id":"9560","series_title":"12","user_id":"55222","department":[{"_id":"151"}],"language":[{"iso":"eng"}],"issue":"657","place":"Bad Neuenahr","year":"2007","citation":{"apa":"Tonchev, A., Hirschberg, W., Sextro, W., Major, Z., &#38; Neges, J. (2007). Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe. In <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i> (pp. 29–49). Bad Neuenahr: VDI Verlag GmbH.","bibtex":"@inproceedings{Tonchev_Hirschberg_Sextro_Major_Neges_2007, place={Bad Neuenahr}, series={12}, title={Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe}, number={657}, booktitle={27. Internationales Mju-Symposium/Bremsen-Fachtagung}, publisher={VDI Verlag GmbH}, author={Tonchev, Anton and Hirschberg, Wolfgang and Sextro, Walter and Major, Zoltan and Neges, Josef}, year={2007}, pages={29–49}, collection={12} }","mla":"Tonchev, Anton, et al. “Modellierung Der Hysterese- Und Adhäsionseffekte Zwischen Bremsbelag Und Bremsscheibe.” <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, no. 657, VDI Verlag GmbH, 2007, pp. 29–49.","short":"A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, J. Neges, in: 27. Internationales Mju-Symposium/Bremsen-Fachtagung, VDI Verlag GmbH, Bad Neuenahr, 2007, pp. 29–49.","chicago":"Tonchev, Anton, Wolfgang Hirschberg, Walter Sextro, Zoltan Major, and Josef Neges. “Modellierung Der Hysterese- Und Adhäsionseffekte Zwischen Bremsbelag Und Bremsscheibe.” In <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, 29–49. 12. Bad Neuenahr: VDI Verlag GmbH, 2007.","ieee":"A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, and J. Neges, “Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe,” in <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, 2007, no. 657, pp. 29–49.","ama":"Tonchev A, Hirschberg W, Sextro W, Major Z, Neges J. Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe. In: <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>. 12. Bad Neuenahr: VDI Verlag GmbH; 2007:29-49."},"page":"29 - 49","date_updated":"2022-01-06T07:04:16Z","publisher":"VDI Verlag GmbH","author":[{"first_name":"Anton","last_name":"Tonchev","full_name":"Tonchev, Anton"},{"full_name":"Hirschberg, Wolfgang","last_name":"Hirschberg","first_name":"Wolfgang"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"},{"full_name":"Major, Zoltan","last_name":"Major","first_name":"Zoltan"},{"full_name":"Neges, Josef","last_name":"Neges","first_name":"Josef"}],"date_created":"2019-04-29T10:03:13Z","title":"Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe"},{"issue":"657","citation":{"chicago":"Tonchev, Anton, Wolfgang Hirschberg, Walter Sextro, Zoltan Major, and Josef Neges. “Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc.” In <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, 144–63. 12. Bad Neuenahr: VDI Verlag GmbH, 2007.","ieee":"A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, and J. Neges, “Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc,” in <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, 2007, no. 657, pp. 144–163.","ama":"Tonchev A, Hirschberg W, Sextro W, Major Z, Neges J. Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc. In: <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>. 12. Bad Neuenahr: VDI Verlag GmbH; 2007:144-163.","apa":"Tonchev, A., Hirschberg, W., Sextro, W., Major, Z., &#38; Neges, J. (2007). Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc. In <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i> (pp. 144–163). Bad Neuenahr: VDI Verlag GmbH.","bibtex":"@inproceedings{Tonchev_Hirschberg_Sextro_Major_Neges_2007, place={Bad Neuenahr}, series={12}, title={Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc}, number={657}, booktitle={27. Internationales Mju-Symposium/Bremsen-Fachtagung}, publisher={VDI Verlag GmbH}, author={Tonchev, Anton and Hirschberg, Wolfgang and Sextro, Walter and Major, Zoltan and Neges, Josef}, year={2007}, pages={144–163}, collection={12} }","short":"A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, J. Neges, in: 27. Internationales Mju-Symposium/Bremsen-Fachtagung, VDI Verlag GmbH, Bad Neuenahr, 2007, pp. 144–163.","mla":"Tonchev, Anton, et al. “Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc.” <i>27. Internationales Mju-Symposium/Bremsen-Fachtagung</i>, no. 657, VDI Verlag GmbH, 2007, pp. 144–63."},"page":"144-163","place":"Bad Neuenahr","year":"2007","author":[{"full_name":"Tonchev, Anton","last_name":"Tonchev","first_name":"Anton"},{"last_name":"Hirschberg","full_name":"Hirschberg, Wolfgang","first_name":"Wolfgang"},{"first_name":"Walter","id":"21220","full_name":"Sextro, Walter","last_name":"Sextro"},{"last_name":"Major","full_name":"Major, Zoltan","first_name":"Zoltan"},{"first_name":"Josef","full_name":"Neges, Josef","last_name":"Neges"}],"date_created":"2019-04-29T10:08:11Z","publisher":"VDI Verlag GmbH","date_updated":"2022-01-06T07:04:16Z","title":"Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc","type":"conference","publication":"27. Internationales Mju-Symposium/Bremsen-Fachtagung","status":"public","user_id":"55222","series_title":"12","department":[{"_id":"151"}],"_id":"9561","language":[{"iso":"eng"}]},{"citation":{"apa":"Camarena Gandia, F., Hemsel, T., Espinosa, V., Twiefel, J., Ardid, M., Martinez-Mora, J., &#38; Gandia, J. B. (2007). Non-destructive ultrasonic test of orange dehydration. In <i>Proceedings of 19th international congress on Acoustics, Madrid</i>.","mla":"Camarena Gandia, Francisco, et al. “Non-Destructive Ultrasonic Test of Orange Dehydration.” <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","bibtex":"@inproceedings{Camarena Gandia_Hemsel_Espinosa_Twiefel_Ardid_Martinez-Mora_Gandia_2007, title={Non-destructive ultrasonic test of orange dehydration}, booktitle={Proceedings of 19th international congress on Acoustics, Madrid}, author={Camarena Gandia, Francisco and Hemsel, Tobias and Espinosa, Victor and Twiefel, Jens and Ardid, Miquel and Martinez-Mora, Joan and Gandia, Joan Babtiste}, year={2007} }","short":"F. Camarena Gandia, T. Hemsel, V. Espinosa, J. Twiefel, M. Ardid, J. Martinez-Mora, J.B. Gandia, in: Proceedings of 19th International Congress on Acoustics, Madrid, 2007.","ieee":"F. Camarena Gandia <i>et al.</i>, “Non-destructive ultrasonic test of orange dehydration,” in <i>Proceedings of 19th international congress on Acoustics, Madrid</i>, 2007.","chicago":"Camarena Gandia, Francisco, Tobias Hemsel, Victor Espinosa, Jens Twiefel, Miquel Ardid, Joan Martinez-Mora, and Joan Babtiste Gandia. “Non-Destructive Ultrasonic Test of Orange Dehydration.” In <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","ama":"Camarena Gandia F, Hemsel T, Espinosa V, et al. Non-destructive ultrasonic test of orange dehydration. In: <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>. ; 2007."},"year":"2007","quality_controlled":"1","title":"Non-destructive ultrasonic test of orange dehydration","author":[{"first_name":"Francisco","full_name":"Camarena Gandia, Francisco","last_name":"Camarena Gandia"},{"first_name":"Tobias","id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel"},{"full_name":"Espinosa, Victor","last_name":"Espinosa","first_name":"Victor"},{"last_name":"Twiefel","full_name":"Twiefel, Jens","first_name":"Jens"},{"last_name":"Ardid","full_name":"Ardid, Miquel","first_name":"Miquel"},{"full_name":"Martinez-Mora, Joan","last_name":"Martinez-Mora","first_name":"Joan"},{"last_name":"Gandia","full_name":"Gandia, Joan Babtiste","first_name":"Joan Babtiste"}],"date_created":"2019-04-29T10:11:16Z","date_updated":"2022-01-06T07:04:16Z","status":"public","abstract":[{"text":"Penetration tests (Magness-Taylor, force/deformation, Kramer multiblade shear) applied directly over the peel of the fruit are the most acceptable methods for measuring firmness and turgidity of fruits and vegetables [1, 2]. To replace these destructive and mechanical penetration methods by non-destructive ultrasonic measurements implies a great advance in order to obtain fast studies about the state of the fruit at the time of harvest, during storage, and in the distribution points. Moreover, there are other advantages since this technique can be fast, non-destructive, fully automated, and performed on-line [1]. Within this context, the objective of this study was to examine the relationship between physico-mechanical characteristics (oil-gland break stress, thickness and dehydration) and ultrasonic characteristics in the ``Salustiana'' orange peel during the complete dehydration process of the orange at ambient conditions. After a description of the measurement system [3], the fruit selection procedure and the measurement protocol, we analyze the results of the change of physico-mechanical and ultrasonic properties in the orange peel and their change with storage time.","lang":"eng"}],"type":"conference","publication":"Proceedings of 19th international congress on Acoustics, Madrid","language":[{"iso":"eng"}],"user_id":"55222","department":[{"_id":"151"}],"_id":"9562"},{"year":"2007","place":"Düsseldorf","page":"147-161","intvolume":"      2022","citation":{"ama":"Genzo A, Sextro W, Panning L. Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten. In: <i>VDI-Berichte</i>. Vol 2022. Düsseldorf: VDI Verlag GmbH; 2007:147-161.","chicago":"Genzo, Alexander, Walter Sextro, and Lars Panning. “Schwingungsverhalten Elastischer Körper Mit Nichtlinearen Kopplungen in Ausgedehnten Reibkontakten.” In <i>VDI-Berichte</i>, 2022:147–61. Düsseldorf: VDI Verlag GmbH, 2007.","ieee":"A. Genzo, W. Sextro, and L. Panning, “Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten,” in <i>VDI-Berichte</i>, 2007, vol. 2022, pp. 147–161.","short":"A. Genzo, W. Sextro, L. Panning, in: VDI-Berichte, VDI Verlag GmbH, Düsseldorf, 2007, pp. 147–161.","bibtex":"@inproceedings{Genzo_Sextro_Panning_2007, place={Düsseldorf}, title={Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten}, volume={2022}, booktitle={VDI-Berichte}, publisher={VDI Verlag GmbH}, author={Genzo, Alexander and Sextro, Walter and Panning, Lars}, year={2007}, pages={147–161} }","mla":"Genzo, Alexander, et al. “Schwingungsverhalten Elastischer Körper Mit Nichtlinearen Kopplungen in Ausgedehnten Reibkontakten.” <i>VDI-Berichte</i>, vol. 2022, VDI Verlag GmbH, 2007, pp. 147–61.","apa":"Genzo, A., Sextro, W., &#38; Panning, L. (2007). Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten. In <i>VDI-Berichte</i> (Vol. 2022, pp. 147–161). Düsseldorf: VDI Verlag GmbH."},"date_updated":"2022-01-06T07:04:16Z","publisher":"VDI Verlag GmbH","volume":2022,"date_created":"2019-04-29T10:17:42Z","author":[{"full_name":"Genzo, Alexander","last_name":"Genzo","first_name":"Alexander"},{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"},{"full_name":"Panning, Lars","last_name":"Panning","first_name":"Lars"}],"title":"Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten","publication":"VDI-Berichte","type":"conference","status":"public","_id":"9563","department":[{"_id":"151"}],"user_id":"55222","language":[{"iso":"eng"}]},{"publication_identifier":{"issn":["0022-460X"]},"quality_controlled":"1","intvolume":"       308","page":"441 - 446","citation":{"apa":"Hemsel, T., Stroop, R., Oliva Uribe, D., &#38; Wallaschek, J. (2007). Resonant vibrating sensors for tactile tissue differentiation. <i>Journal of Sound and Vibration</i>, <i>308</i>, 441–446. <a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">https://doi.org/10.1016/j.jsv.2007.03.063</a>","mla":"Hemsel, Tobias, et al. “Resonant Vibrating Sensors for Tactile Tissue Differentiation.” <i>Journal of Sound and Vibration</i>, vol. 308, 2007, pp. 441–46, doi:<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>.","short":"T. Hemsel, R. Stroop, D. Oliva Uribe, J. Wallaschek, Journal of Sound and Vibration 308 (2007) 441–446.","bibtex":"@article{Hemsel_Stroop_Oliva Uribe_Wallaschek_2007, title={Resonant vibrating sensors for tactile tissue differentiation}, volume={308}, DOI={<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>}, journal={Journal of Sound and Vibration}, author={Hemsel, Tobias and Stroop, Ralf and Oliva Uribe, David and Wallaschek, Jörg}, year={2007}, pages={441–446} }","ama":"Hemsel T, Stroop R, Oliva Uribe D, Wallaschek J. Resonant vibrating sensors for tactile tissue differentiation. <i>Journal of Sound and Vibration</i>. 2007;308:441-446. doi:<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>","chicago":"Hemsel, Tobias, Ralf Stroop, David Oliva Uribe, and Jörg Wallaschek. “Resonant Vibrating Sensors for Tactile Tissue Differentiation.” <i>Journal of Sound and Vibration</i> 308 (2007): 441–46. <a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">https://doi.org/10.1016/j.jsv.2007.03.063</a>.","ieee":"T. Hemsel, R. Stroop, D. Oliva Uribe, and J. Wallaschek, “Resonant vibrating sensors for tactile tissue differentiation,” <i>Journal of Sound and Vibration</i>, vol. 308, pp. 441–446, 2007."},"year":"2007","volume":308,"date_created":"2019-04-29T10:20:03Z","author":[{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"last_name":"Stroop","full_name":"Stroop, Ralf","first_name":"Ralf"},{"full_name":"Oliva Uribe, David","last_name":"Oliva Uribe","first_name":"David"},{"last_name":"Wallaschek","full_name":"Wallaschek, Jörg","first_name":"Jörg"}],"date_updated":"2022-01-06T07:04:16Z","doi":"10.1016/j.jsv.2007.03.063","title":"Resonant vibrating sensors for tactile tissue differentiation","publication":"Journal of Sound and Vibration","type":"journal_article","status":"public","abstract":[{"text":"Surgical resection of brain tumours is a difficult task. To enhance surgery results, a tactile sensor is wanted that gives better resolution and sensitivity than the human tactile sense. The characteristics of resonant vibrating piezoelectric elements change with varying load. This allows for calculation of mechanical load parameters by measuring electrical quantities. Different setups of piezoelectric sensors have been used to investigate soft materials. Finally, a piezoelectric bimorph sensor gave good results for distinguishing tissue mimicking gel-phantoms with different gelatine concentrations. ","lang":"eng"}],"department":[{"_id":"151"}],"user_id":"55222","_id":"9564","language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"user_id":"55222","department":[{"_id":"151"}],"_id":"9565","status":"public","type":"conference","publication":"Proceedings of 19th international congress on Acoustics, Madrid","title":"Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation","date_created":"2019-04-29T10:21:57Z","author":[{"full_name":"Lierke, Ernst-Günter","last_name":"Lierke","first_name":"Ernst-Günter"},{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"}],"date_updated":"2022-01-06T07:04:16Z","citation":{"apa":"Lierke, E.-G., &#38; Hemsel, T. (2007). Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation. In <i>Proceedings of 19th international congress on Acoustics, Madrid</i>.","short":"E.-G. Lierke, T. Hemsel, in: Proceedings of 19th International Congress on Acoustics, Madrid, 2007.","bibtex":"@inproceedings{Lierke_Hemsel_2007, title={Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation}, booktitle={Proceedings of 19th international congress on Acoustics, Madrid}, author={Lierke, Ernst-Günter and Hemsel, Tobias}, year={2007} }","mla":"Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation.” <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","chicago":"Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation.” In <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","ieee":"E.-G. Lierke and T. Hemsel, “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation,” in <i>Proceedings of 19th international congress on Acoustics, Madrid</i>, 2007.","ama":"Lierke E-G, Hemsel T. Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation. In: <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>. ; 2007."},"year":"2007","quality_controlled":"1"},{"_id":"9566","department":[{"_id":"151"}],"user_id":"55222","language":[{"iso":"eng"}],"publication":"Proceedings of Symposium on Ultrasonic Electronics","type":"journal_article","status":"public","date_updated":"2022-01-06T07:04:16Z","volume":28,"date_created":"2019-04-29T10:23:26Z","author":[{"first_name":"Takashi","full_name":"Shigematsu , Takashi","last_name":"Shigematsu "},{"first_name":"Takeshi","full_name":"Morita, Takeshi","last_name":"Morita"},{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"}],"title":"Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate","quality_controlled":"1","year":"2007","page":"439 - 440","intvolume":"        28","citation":{"ama":"Shigematsu  T, Morita T, Hemsel T. Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate. <i>Proceedings of Symposium on Ultrasonic Electronics</i>. 2007;28:439-440.","chicago":"Shigematsu , Takashi, Takeshi Morita, and Tobias Hemsel. “Fundamental Study on A Thickness-Shear Transformer Using X-Cut Lithium Niobate.” <i>Proceedings of Symposium on Ultrasonic Electronics</i> 28 (2007): 439–40.","ieee":"T. Shigematsu , T. Morita, and T. Hemsel, “Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate,” <i>Proceedings of Symposium on Ultrasonic Electronics</i>, vol. 28, pp. 439–440, 2007.","bibtex":"@article{Shigematsu _Morita_Hemsel_2007, title={Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate}, volume={28}, journal={Proceedings of Symposium on Ultrasonic Electronics}, author={Shigematsu , Takashi and Morita, Takeshi and Hemsel, Tobias}, year={2007}, pages={439–440} }","mla":"Shigematsu , Takashi, et al. “Fundamental Study on A Thickness-Shear Transformer Using X-Cut Lithium Niobate.” <i>Proceedings of Symposium on Ultrasonic Electronics</i>, vol. 28, 2007, pp. 439–40.","short":"T. Shigematsu , T. Morita, T. Hemsel, Proceedings of Symposium on Ultrasonic Electronics 28 (2007) 439–440.","apa":"Shigematsu , T., Morita, T., &#38; Hemsel, T. (2007). Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate. <i>Proceedings of Symposium on Ultrasonic Electronics</i>, <i>28</i>, 439–440."}},{"publication":"Journal of Turbomachinery","type":"journal_article","status":"public","abstract":[{"text":"Numerical predictions of the forced vibration of a disk assembly including frictional effects between the shrouds are presented concerning engineering needs for the blade design process. Assuming a tuned disk assembly, numerical static, free, and then forced vibration analyses of a shrouded turbine blade measured in the spin pit are performed systematically. For the excitation forces of an air jet evaluated from the fairly linear behavior of the experimental blade resonance peaks, the reliability of the proposed approach is validated through the very close agreement of the computed and measured resonant peaks. These resonant peaks demonstrate either a fairly linear behavior or a nonlinear one like the jump effect of blade resonance amplitudes, or elastic impacts between the shrouds. Also, the damping performance for different contact configurations between the shrouds is numerically analyzed. These numerical results indicate that the shrouds generate higher frictional damping for small angles (0{\\^a}30deg) between the circumferential direction and the normal vector to the contact surface.","lang":"eng"}],"department":[{"_id":"151"}],"user_id":"55222","_id":"9567","language":[{"iso":"eng"}],"issue":"1","quality_controlled":"1","publication_identifier":{"issn":["0889-504X"]},"intvolume":"       130","page":"011002-011002","citation":{"ieee":"J. Szwedowicz, R. Visser, W. Sextro, and P. A. Masserey, “On Nonlinear Forced Vibration of Shrouded Turbine Blades,” <i>Journal of Turbomachinery</i>, vol. 130, no. 1, pp. 011002–011002, 2007.","chicago":"Szwedowicz, J, R Visser, Walter Sextro, and P. A Masserey. “On Nonlinear Forced Vibration of Shrouded Turbine Blades.” <i>Journal of Turbomachinery</i> 130, no. 1 (2007): 011002–011002.","ama":"Szwedowicz J, Visser R, Sextro W, Masserey PA. On Nonlinear Forced Vibration of Shrouded Turbine Blades. <i>Journal of Turbomachinery</i>. 2007;130(1):011002-011002.","bibtex":"@article{Szwedowicz_Visser_Sextro_Masserey_2007, title={On Nonlinear Forced Vibration of Shrouded Turbine Blades}, volume={130}, number={1}, journal={Journal of Turbomachinery}, author={Szwedowicz, J and Visser, R and Sextro, Walter and Masserey, P. A}, year={2007}, pages={011002–011002} }","short":"J. Szwedowicz, R. Visser, W. Sextro, P.A. Masserey, Journal of Turbomachinery 130 (2007) 011002–011002.","mla":"Szwedowicz, J., et al. “On Nonlinear Forced Vibration of Shrouded Turbine Blades.” <i>Journal of Turbomachinery</i>, vol. 130, no. 1, 2007, pp. 011002–011002.","apa":"Szwedowicz, J., Visser, R., Sextro, W., &#38; Masserey, P. A. (2007). On Nonlinear Forced Vibration of Shrouded Turbine Blades. <i>Journal of Turbomachinery</i>, <i>130</i>(1), 011002–011002."},"year":"2007","volume":130,"date_created":"2019-04-29T10:25:57Z","author":[{"full_name":"Szwedowicz, J","last_name":"Szwedowicz","first_name":"J"},{"first_name":"R","full_name":"Visser, R","last_name":"Visser"},{"first_name":"Walter","last_name":"Sextro","id":"21220","full_name":"Sextro, Walter"},{"last_name":"Masserey","full_name":"Masserey, P. A","first_name":"P. A"}],"date_updated":"2022-01-06T07:04:16Z","title":"On Nonlinear Forced Vibration of Shrouded Turbine Blades"},{"status":"public","publication":"Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators","type":"conference","language":[{"iso":"eng"}],"department":[{"_id":"151"}],"user_id":"55222","series_title":"HNI Verlagsschriftenreihe","_id":"9532","page":"481","citation":{"ama":"Becker C, Wedman S, Hemsel T. Design and Construction of a 3D-Scanning-Laservibrometer. In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:481.","ieee":"C. Becker, S. Wedman, and T. Hemsel, “Design and Construction of a 3D-Scanning-Laservibrometer,” in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, no. Band 180, p. 481.","chicago":"Becker, C, S Wedman, and Tobias Hemsel. “Design and Construction of a 3D-Scanning-Laservibrometer.” In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 481. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.","apa":"Becker, C., Wedman, S., &#38; Hemsel, T. (2006). Design and Construction of a 3D-Scanning-Laservibrometer. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i> (p. 481). Paderborn, Germany.","mla":"Becker, C., et al. “Design and Construction of a 3D-Scanning-Laservibrometer.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006, p. 481.","bibtex":"@inproceedings{Becker_Wedman_Hemsel_2006, place={Paderborn, Germany}, series={HNI Verlagsschriftenreihe}, title={Design and Construction of a 3D-Scanning-Laservibrometer}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}, author={Becker, C and Wedman, S and Hemsel, Tobias}, year={2006}, pages={481}, collection={HNI Verlagsschriftenreihe} }","short":"C. Becker, S. Wedman, T. Hemsel, in: Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006, p. 481."},"year":"2006","place":"Paderborn, Germany","issue":"Band 180","title":"Design and Construction of a 3D-Scanning-Laservibrometer","date_created":"2019-04-29T08:47:33Z","author":[{"first_name":"C","full_name":"Becker, C","last_name":"Becker"},{"first_name":"S","full_name":"Wedman, S","last_name":"Wedman"},{"full_name":"Hemsel, Tobias","id":"210","last_name":"Hemsel","first_name":"Tobias"}],"date_updated":"2022-01-06T07:04:16Z"},{"_id":"9533","user_id":"55222","department":[{"_id":"151"}],"keyword":["Piezoelectric transducer"],"language":[{"iso":"eng"}],"type":"journal_article","publication":"Ultrasonics","abstract":[{"text":"The design of piezoelectric transducers is usually based on single-objective optimization only. In most practical applications of piezoelectric transducers, however, there exist multiple design objectives that often are contradictory to each other by their very nature. It is impossible to find a solution at which each objective function gets its optimal value simultaneously. Our design approach is to first find a set of Pareto-optimal solutions, which can be considered to be best compromises among multiple design objectives. Among these Pareto-optimal solutions, the designer can then select the one solution which he considers to be the best one. In this paper we investigate the optimal design of a Langevin transducer. The design problem is formulated mathematically as a constrained multiobjective optimization problem. The maximum vibration amplitude and the minimum electrical input power are considered as optimization objectives. Design variables involve continuous variables (dimensions of the transducer) and discrete variables (the number of piezoelectric rings and material types). In order to formulate the optimization problem, the behavior of piezoelectric transducers is modeled using the transfer matrix method based on analytical models. Multiobjective evolutionary algorithms are applied in the optimization process and a set of Pareto-optimal designs is calculated. The optimized results are analyzed and the preferred design is determined. ","lang":"eng"}],"status":"public","date_updated":"2022-01-06T07:04:16Z","date_created":"2019-04-29T08:50:23Z","author":[{"full_name":"Fu, Bo","last_name":"Fu","first_name":"Bo"},{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"full_name":"Wallaschek, Jörg","last_name":"Wallaschek","first_name":"Jörg"}],"volume":"44, Supplement","title":"Piezoelectric transducer design via multiobjective optimization","doi":"10.1016/j.ultras.2006.05.087","publication_identifier":{"issn":["0041-624X"]},"quality_controlled":"1","year":"2006","citation":{"apa":"Fu, B., Hemsel, T., &#38; Wallaschek, J. (2006). Piezoelectric transducer design via multiobjective optimization. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>, e747–e752. <a href=\"https://doi.org/10.1016/j.ultras.2006.05.087\">https://doi.org/10.1016/j.ultras.2006.05.087</a>","mla":"Fu, Bo, et al. “Piezoelectric Transducer Design via Multiobjective Optimization.” <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp. e747–52, doi:<a href=\"https://doi.org/10.1016/j.ultras.2006.05.087\">10.1016/j.ultras.2006.05.087</a>.","bibtex":"@article{Fu_Hemsel_Wallaschek_2006, title={Piezoelectric transducer design via multiobjective optimization}, volume={44, Supplement}, DOI={<a href=\"https://doi.org/10.1016/j.ultras.2006.05.087\">10.1016/j.ultras.2006.05.087</a>}, journal={Ultrasonics}, author={Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}, year={2006}, pages={e747–e752} }","short":"B. Fu, T. Hemsel, J. Wallaschek, Ultrasonics 44, Supplement (2006) e747–e752.","ama":"Fu B, Hemsel T, Wallaschek J. Piezoelectric transducer design via multiobjective optimization. <i>Ultrasonics</i>. 2006;44, Supplement:e747-e752. doi:<a href=\"https://doi.org/10.1016/j.ultras.2006.05.087\">10.1016/j.ultras.2006.05.087</a>","ieee":"B. Fu, T. Hemsel, and J. Wallaschek, “Piezoelectric transducer design via multiobjective optimization,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e747–e752, 2006.","chicago":"Fu, Bo, Tobias Hemsel, and Jörg Wallaschek. “Piezoelectric Transducer Design via Multiobjective Optimization.” <i>Ultrasonics</i> 44, Supplement (2006): e747–52. <a href=\"https://doi.org/10.1016/j.ultras.2006.05.087\">https://doi.org/10.1016/j.ultras.2006.05.087</a>."},"page":"e747 - e752"},{"language":[{"iso":"eng"}],"user_id":"55222","series_title":"HNI Verlagsschriftenreihe","department":[{"_id":"151"}],"_id":"9534","status":"public","type":"conference","publication":"Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators","title":"Multiobjective optimization of piezoelectric transducers using evolutionary algorithms","date_created":"2019-04-29T08:52:41Z","author":[{"full_name":"Fu, Bo","last_name":"Fu","first_name":"Bo"},{"first_name":"Tobias","last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias"},{"first_name":"Jörg","full_name":"Wallaschek, Jörg","last_name":"Wallaschek"}],"date_updated":"2022-01-06T07:04:16Z","citation":{"apa":"Fu, B., Hemsel, T., &#38; Wallaschek, J. (2006). Multiobjective optimization of piezoelectric transducers using evolutionary algorithms. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i> (pp. 223–228). Paderborn, Germany.","mla":"Fu, Bo, et al. “Multiobjective Optimization of Piezoelectric Transducers Using Evolutionary Algorithms.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006, pp. 223–28.","bibtex":"@inproceedings{Fu_Hemsel_Wallaschek_2006, place={Paderborn, Germany}, series={HNI Verlagsschriftenreihe}, title={Multiobjective optimization of piezoelectric transducers using evolutionary algorithms}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}, author={Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}, year={2006}, pages={223–228}, collection={HNI Verlagsschriftenreihe} }","short":"B. Fu, T. Hemsel, J. Wallaschek, in: Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 223–228.","chicago":"Fu, Bo, Tobias Hemsel, and Jörg Wallaschek. “Multiobjective Optimization of Piezoelectric Transducers Using Evolutionary Algorithms.” In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 223–28. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.","ieee":"B. Fu, T. Hemsel, and J. Wallaschek, “Multiobjective optimization of piezoelectric transducers using evolutionary algorithms,” in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 223–228.","ama":"Fu B, Hemsel T, Wallaschek J. Multiobjective optimization of piezoelectric transducers using evolutionary algorithms. In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:223-228."},"page":"223-228","place":"Paderborn, Germany","year":"2006","issue":"Band 180"},{"type":"conference","publication":"Proceedings of ISMA - International conference on noise and vibration engineering","status":"public","_id":"9535","user_id":"55222","department":[{"_id":"151"}],"keyword":["Noise","Vibration engineering"],"language":[{"iso":"eng"}],"year":"2006","citation":{"apa":"Genzo, A., &#38; Sextro, W. (2006). Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts. In <i>Proceedings of ISMA - International conference on noise and vibration engineering</i> (pp. 51–52).","short":"A. Genzo, W. Sextro, in: Proceedings of ISMA - International Conference on Noise and Vibration Engineering, 2006, pp. 51–52.","bibtex":"@inproceedings{Genzo_Sextro_2006, title={Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts}, booktitle={Proceedings of ISMA - International conference on noise and vibration engineering}, author={Genzo, Alexander and Sextro, Walter}, year={2006}, pages={51–52} }","mla":"Genzo, Alexander, and Walter Sextro. “Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts.” <i>Proceedings of ISMA - International Conference on Noise and Vibration Engineering</i>, 2006, pp. 51–52.","chicago":"Genzo, Alexander, and Walter Sextro. “Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts.” In <i>Proceedings of ISMA - International Conference on Noise and Vibration Engineering</i>, 51–52, 2006.","ieee":"A. Genzo and W. Sextro, “Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts,” in <i>Proceedings of ISMA - International conference on noise and vibration engineering</i>, 2006, pp. 51–52.","ama":"Genzo A, Sextro W. Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts. In: <i>Proceedings of ISMA - International Conference on Noise and Vibration Engineering</i>. ; 2006:51-52."},"page":"51-52","date_updated":"2022-01-06T07:04:16Z","date_created":"2019-04-29T08:54:27Z","author":[{"first_name":"Alexander","full_name":"Genzo, Alexander","last_name":"Genzo"},{"last_name":"Sextro","id":"21220","full_name":"Sextro, Walter","first_name":"Walter"}],"title":"Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts"},{"abstract":[{"text":"This paper presents a model for unsteady longitudinal slippage of a loaded rubber wheel. The aim of modelling was to calculate the dynamical contact behavior in a numerical efficient way. Further on, simulation results are compared to experimental data.","lang":"eng"}],"publication":"Analysis and Simulation of Contact Problems","language":[{"iso":"eng"}],"year":"2006","quality_controlled":"1","title":"Unsteady rolling contact of rubber wheels","publisher":"Springer Berlin Heidelberg","date_created":"2019-04-29T08:55:49Z","editor":[{"first_name":"Peter","full_name":"Wriggers, Peter","last_name":"Wriggers"},{"full_name":"Nackenhorst, Udo","last_name":"Nackenhorst","first_name":"Udo"}],"status":"public","type":"book_chapter","_id":"9536","department":[{"_id":"151"}],"series_title":"Lecture Notes in Applied and Computational Mechanics","user_id":"55222","page":"261-270","intvolume":"        27","citation":{"bibtex":"@inbook{Gutzeit_Sextro_Kröger_2006, series={Lecture Notes in Applied and Computational Mechanics}, title={Unsteady rolling contact of rubber wheels}, volume={27}, DOI={<a href=\"https://doi.org/10.1007/3-540-31761-9_29\">10.1007/3-540-31761-9_29</a>}, booktitle={Analysis and Simulation of Contact Problems}, publisher={Springer Berlin Heidelberg}, author={Gutzeit, F and Sextro, Walter and Kröger, Matthias}, editor={Wriggers, Peter and Nackenhorst, UdoEditors}, year={2006}, pages={261–270}, collection={Lecture Notes in Applied and Computational Mechanics} }","mla":"Gutzeit, F., et al. “Unsteady Rolling Contact of Rubber Wheels.” <i>Analysis and Simulation of Contact Problems</i>, edited by Peter Wriggers and Udo Nackenhorst, vol. 27, Springer Berlin Heidelberg, 2006, pp. 261–70, doi:<a href=\"https://doi.org/10.1007/3-540-31761-9_29\">10.1007/3-540-31761-9_29</a>.","short":"F. Gutzeit, W. Sextro, M. Kröger, in: P. Wriggers, U. Nackenhorst (Eds.), Analysis and Simulation of Contact Problems, Springer Berlin Heidelberg, 2006, pp. 261–270.","apa":"Gutzeit, F., Sextro, W., &#38; Kröger, M. (2006). Unsteady rolling contact of rubber wheels. In P. Wriggers &#38; U. Nackenhorst (Eds.), <i>Analysis and Simulation of Contact Problems</i> (Vol. 27, pp. 261–270). Springer Berlin Heidelberg. <a href=\"https://doi.org/10.1007/3-540-31761-9_29\">https://doi.org/10.1007/3-540-31761-9_29</a>","ieee":"F. Gutzeit, W. Sextro, and M. Kröger, “Unsteady rolling contact of rubber wheels,” in <i>Analysis and Simulation of Contact Problems</i>, vol. 27, P. Wriggers and U. Nackenhorst, Eds. Springer Berlin Heidelberg, 2006, pp. 261–270.","chicago":"Gutzeit, F, Walter Sextro, and Matthias Kröger. “Unsteady Rolling Contact of Rubber Wheels.” In <i>Analysis and Simulation of Contact Problems</i>, edited by Peter Wriggers and Udo Nackenhorst, 27:261–70. Lecture Notes in Applied and Computational Mechanics. Springer Berlin Heidelberg, 2006. <a href=\"https://doi.org/10.1007/3-540-31761-9_29\">https://doi.org/10.1007/3-540-31761-9_29</a>.","ama":"Gutzeit F, Sextro W, Kröger M. Unsteady rolling contact of rubber wheels. In: Wriggers P, Nackenhorst U, eds. <i>Analysis and Simulation of Contact Problems</i>. Vol 27. Lecture Notes in Applied and Computational Mechanics. Springer Berlin Heidelberg; 2006:261-270. doi:<a href=\"https://doi.org/10.1007/3-540-31761-9_29\">10.1007/3-540-31761-9_29</a>"},"publication_identifier":{"isbn":["978-3-540-31760-9"]},"doi":"10.1007/3-540-31761-9_29","date_updated":"2022-01-06T07:04:16Z","volume":27,"author":[{"full_name":"Gutzeit, F","last_name":"Gutzeit","first_name":"F"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"},{"last_name":"Kröger","full_name":"Kröger, Matthias","first_name":"Matthias"}]},{"year":"2006","place":"Paderborn, Germany","page":"183-186","citation":{"apa":"Hemsel, T., Henning, C., Kauczor, C., &#38; Littmann, W. (2006). Powder coating fabrication by ultrasonic standing wave atomizer. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i> (pp. 183–186). Paderborn, Germany.","short":"T. Hemsel, C. Henning, C. Kauczor, W. Littmann, in: Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 183–186.","bibtex":"@inproceedings{Hemsel_Henning_Kauczor_Littmann_2006, place={Paderborn, Germany}, series={HNI Verlagsschriftenreihe}, title={Powder coating fabrication by ultrasonic standing wave atomizer}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}, author={Hemsel, Tobias and Henning, C and Kauczor, Christopher and Littmann, Walter}, year={2006}, pages={183–186}, collection={HNI Verlagsschriftenreihe} }","mla":"Hemsel, Tobias, et al. “Powder Coating Fabrication by Ultrasonic Standing Wave Atomizer.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006, pp. 183–86.","ama":"Hemsel T, Henning C, Kauczor C, Littmann W. Powder coating fabrication by ultrasonic standing wave atomizer. In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:183-186.","ieee":"T. Hemsel, C. Henning, C. Kauczor, and W. Littmann, “Powder coating fabrication by ultrasonic standing wave atomizer,” in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 183–186.","chicago":"Hemsel, Tobias, C Henning, Christopher Kauczor, and Walter Littmann. “Powder Coating Fabrication by Ultrasonic Standing Wave Atomizer.” In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>, 183–86. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006."},"issue":"Band 180","title":"Powder coating fabrication by ultrasonic standing wave atomizer","date_updated":"2022-01-06T07:04:16Z","date_created":"2019-04-29T08:59:10Z","author":[{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"full_name":"Henning, C","last_name":"Henning","first_name":"C"},{"full_name":"Kauczor, Christopher","last_name":"Kauczor","first_name":"Christopher"},{"full_name":"Littmann, Walter","last_name":"Littmann","first_name":"Walter"}],"status":"public","publication":"Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators","type":"conference","language":[{"iso":"eng"}],"_id":"9537","department":[{"_id":"151"}],"series_title":"HNI Verlagsschriftenreihe","user_id":"55222"}]