A broadband semi passive piezoelectric technique for structural damping

Lionel Petit; Elie Lefeuvre; Claude Richard; Daniel Guyomar

doi:10.1117/12.532716

29 July 2004 A broadband semi passive piezoelectric technique for structural damping

Lionel Petit, Elie Lefeuvre, Claude Richard, Daniel Guyomar

Proceedings Volume 5386, Smart Structures and Materials 2004: Damping and Isolation; (2004) https://doi.org/10.1117/12.532716
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

The damping of vibration resonance is a crucial problem for light and elongated structures. Different kinds of solutions have been developed in order to address the problem of volume or mass, or temperature dependence which are common to the passive approach. In the semi-passive technique proposed here, damping is obtained through the use of piezoelectric patches bonded on the structure. These piezoelements are controlled with a very simple approach only requiring switches which are driven periodically and synchronously with the structure motion. The overall control circuit requires a very few amount of energy. Results obtained on a beam and on a plate demonstrate that this self-adaptive technique is able to control simultaneously different modes on a broad frequency range.

Citation Download Citation

Lionel Petit, Elie Lefeuvre, Claude Richard, and Daniel Guyomar "A broadband semi passive piezoelectric technique for structural damping", Proc. SPIE 5386, Smart Structures and Materials 2004: Damping and Isolation, (29 July 2004); https://doi.org/10.1117/12.532716

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