Nonlinear piezoelectric vibration absorbers

Gregory S. Agnes; Daniel J. Inman

doi:10.1117/12.239092

1 May 1996 Nonlinear piezoelectric vibration absorbers

Gregory S. Agnes, Daniel J. Inman

Proceedings Volume 2720, Smart Structures and Materials 1996: Passive Damping and Isolation; (1996) https://doi.org/10.1117/12.239092
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

Abstract

The effect of quadratic nonlinear electrical shunts on the performance of piezoelectric vibration absorbers is presented. The equations of motion are derived in a format suitable for perturbation analysis. An electrical shunt containing cubic and quadratic elements is coupled to the structure via the piezoelectric effect. Nonlinearities are introduced as a combination of the square and/or cube of the charge flowing in the linear inductive-resistive (LR) shunt. Tuning the shunt near a structural mode causes mechanical energy to be transformed to electrical energy and dissipated by the resistive element in the shunt in a manner analogous to a damped vibration absorber. Analysis is carried out using the method of multiple scales. Simulation results are also presented.

Citation Download Citation

Gregory S. Agnes and Daniel J. Inman "Nonlinear piezoelectric vibration absorbers", Proc. SPIE 2720, Smart Structures and Materials 1996: Passive Damping and Isolation, (1 May 1996); https://doi.org/10.1117/12.239092

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