Actively tuned solid state piezoelectric vibration absorber

Author(s):  
Christopher L. Davis ◽  
George A. Lesieutre
1994 ◽  
Vol 5 (4) ◽  
pp. 559-566 ◽  
Author(s):  
Joseph J. Hollkamp ◽  
Thomas F. Starchville

Author(s):  
B. Lossouarn ◽  
J.-F. Deü ◽  
G. Kerschen

The objective of this study is to develop the first fully passive nonlinear piezoelectric tuned vibration absorber (NPTVA). The NPTVA is designed to mitigate a specific resonance of a nonlinear host structure. To avoid the use of synthetic inductors which require external power, closed magnetic circuits in ferrite material realize the large inductance values required by vibration mitigation at low frequencies. The saturation of an additional passive inductor is then exploited to build the nonlinearity in the NPTVA. The performance of the proposed device is demonstrated both numerically and experimentally. This article is part of the theme issue ‘Nonlinear energy transfer in dynamical and acoustical systems’.


2016 ◽  
Vol 28 (9) ◽  
pp. 1115-1129 ◽  
Author(s):  
P Soltani ◽  
G Kerschen ◽  
G Tondreau ◽  
A Deraemaeker

The objective of this paper is to derive an approximate closed-form solution to the [Formula: see text] optimization of piezoelectric materials shunted with inductive-resistive passive electrical circuits in the presence of damping in the primary structure. To this end, the homotopy perturbation method (HPM) is utilized in which the zero-order solution is the recently-developed exact solution for an undamped primary system. Simplified, though accurate, expressions for the optimum frequency and damping ratios are also provided.


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