An impedance-based system modeling technique has been developed to determine the output forces of multiple piezoelectric (PZT) patch actuators on an active structure to produce a known vibration response. In the analysis of the dynamic response of a structure driven by multiple PZT patches, the proposed model includes not only the dynamic interactions between the PZT patch and the host structure but also the impedance couplings among PZT patches. Therefore this approach can apply to a structure with multiple PZT actuators. Furthermore, the bending stiffness and the thickness of a PZT patch that are proved to be important as increases of excitation frequency are included in the proposed impedance model. Examples are given to demonstrate how to synthesize a known vibration response and how to suppress vibration response at an arbitrary location on structures using this technique.
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April 2001
Technical Papers
Applications of the Impedance Method on Multiple Piezoelectric Actuators Driven Structures
C. C. Cheng, Associate Professor, Mem. ASME,
C. C. Cheng, Associate Professor, Mem. ASME
Department of Mechanical Engineering, National Chung Cheng University Chia-Yi, 621 Taiwan, R.O.C.
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P. W. Wang, Graduate Research Assistant
P. W. Wang, Graduate Research Assistant
Department of Mechanical Engineering, National Chung Cheng University Chia-Yi, 621 Taiwan, R.O.C.
Search for other works by this author on:
C. C. Cheng, Associate Professor, Mem. ASME
Department of Mechanical Engineering, National Chung Cheng University Chia-Yi, 621 Taiwan, R.O.C.
P. W. Wang, Graduate Research Assistant
Department of Mechanical Engineering, National Chung Cheng University Chia-Yi, 621 Taiwan, R.O.C.
Contributed by the Technical Committee on Vibration and Sound for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received November 1999; revised December 2000. Associate Editor: K. W. Wang.
J. Vib. Acoust. Apr 2001, 123(2): 262-268 (7 pages)
Published Online: December 1, 2000
Article history
Received:
November 1, 1999
Revised:
December 1, 2000
Citation
Cheng, C. C., and Wang, P. W. (December 1, 2000). "Applications of the Impedance Method on Multiple Piezoelectric Actuators Driven Structures ." ASME. J. Vib. Acoust. April 2001; 123(2): 262–268. https://doi.org/10.1115/1.1362322
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