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Proceedings Paper

Precise calculation of piezoelectric switching techniques for vibration damping
Author(s): Marcus Neubauer; Jörg Wallaschek
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Paper Abstract

Piezoelectric shunt damping is new technique to damp mechanical vibrations of structures. Because of the piezoelectric effect, vibration energy is converted into electrical energy. In the attached network some part of the energy is dissipated. Switching shunts offer the possibility to adapt to varying excitation frequencies. In this paper, the damping performance of different switching techniques are calculated considering all important network parameters and non-idealities in the switching boards. Measurements on a clamped beam are performed to validate the results, and the switching techniques are applied to a squealing disc brake. It is shown that due to the piezoelectric shunt damping the sound pressure level can be reduced considerably.

Paper Details

Date Published: 7 April 2009
PDF: 11 pages
Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 72881I (7 April 2009); doi: 10.1117/12.815809
Show Author Affiliations
Marcus Neubauer, Institute for Dynamics and Vibration Research (Germany)
Jörg Wallaschek, Institute for Dynamics and Vibration Research (Germany)


Published in SPIE Proceedings Vol. 7288:
Active and Passive Smart Structures and Integrated Systems 2009
Mehdi Ahmadian; Mehrdad N. Ghasemi-Nejhad, Editor(s)

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