Wolf, Kai-Dietrich (2001)
Electromechanical Energy Conversion in Asymmetric Piezoelectric Bending Actuators.
Technische Universität Darmstadt
Dissertation, Erstveröffentlichung
Kurzbeschreibung (Abstract)
Piezoelectric materials can be conveniently used to build actuators which convert electrical into mechanical energy and vice versa. In structures containing beam and plate members, piezoelectric patches are employed to control flexural vibrations and optimization of the design and placement of these patches has been a concern in the development of 'smart structures' and ultrasonic motors. Rather than looking at detailed models of particular systems, it is desirable to find an optimum design of a piezoelectric patch by general consideration of energy conversion in piezoelectric layers subject to bending deformation. The electromechanical coupling factor (EMCF) and the actuator power factor are measures for the actuators ability to transform energy and can be utilized as design criteria to determine an optimum thickness of a piezoelectric patch. Compared to current designs of bending actuators, results indicate that thicker piezoelectric layers lead to better energy conversion.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2001 | ||||
Autor(en): | Wolf, Kai-Dietrich | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Electromechanical Energy Conversion in Asymmetric Piezoelectric Bending Actuators | ||||
Sprache: | Englisch | ||||
Referenten: | Irschik, Prof. Dipl Hans | ||||
Berater: | Hagedorn, Prof. Dr. Peter | ||||
Publikationsjahr: | 15 Januar 2001 | ||||
Ort: | Darmstadt | ||||
Verlag: | Technische Universität | ||||
Datum der mündlichen Prüfung: | 29 Mai 2000 | ||||
URL / URN: | urn:nbn:de:tuda-tuprints-944 | ||||
Kurzbeschreibung (Abstract): | Piezoelectric materials can be conveniently used to build actuators which convert electrical into mechanical energy and vice versa. In structures containing beam and plate members, piezoelectric patches are employed to control flexural vibrations and optimization of the design and placement of these patches has been a concern in the development of 'smart structures' and ultrasonic motors. Rather than looking at detailed models of particular systems, it is desirable to find an optimum design of a piezoelectric patch by general consideration of energy conversion in piezoelectric layers subject to bending deformation. The electromechanical coupling factor (EMCF) and the actuator power factor are measures for the actuators ability to transform energy and can be utilized as design criteria to determine an optimum thickness of a piezoelectric patch. Compared to current designs of bending actuators, results indicate that thicker piezoelectric layers lead to better energy conversion. |
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Alternatives oder übersetztes Abstract: |
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Freie Schlagworte: | EMCF, bending actuator, piezoelectric layer, energy conversion, optimal thickness, power factor, PZT, flexural vibration | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik | ||||
Fachbereich(e)/-gebiet(e): | Studienbereiche 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Dynamik und Schwingungen 16 Fachbereich Maschinenbau > Fachgebiet Systemzuverlässigkeit, Adaptronik und Maschinenakustik (SAM) Studienbereiche > Studienbereich Mechanik |
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Hinterlegungsdatum: | 17 Okt 2008 09:20 | ||||
Letzte Änderung: | 04 Feb 2019 10:48 | ||||
PPN: | |||||
Referenten: | Irschik, Prof. Dipl Hans | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 29 Mai 2000 | ||||
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