Power generation and shunt damping performance of a single crystal lead magnesium niobate-lead zirconate titanate unimorph: Analysis and experiment

被引：64

作者：

Erturk, A. ^{[1
]}

Bilgen, O. ^{[2
]}

Inman, D. J. ^{[2
]}

机构：

[1] Virginia Polytech Inst & State Univ, Dept Engn Sci & Mech, Ctr Intelligent Mat Syst & Struct, Blacksburg, VA 24061 USA

[2] Virginia Polytech Inst & State Univ, Dept Mech Engn, Ctr Intelligent Mat Syst & Struct, Blacksburg, VA 24061 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 22期

关键词：

lead compounds; piezoceramics; piezoelectric transducers; piezoelectricity;

D O I：

10.1063/1.3040011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter investigates the power generation and shunt damping performance of the single crystal piezoelectric ceramic lead magnesium niobate-lead zirconate titanate (PMN-PZT) analytically and experimentally. PMN-PZT is a recently developed interface for energy harvesting and shunt damping with its large piezoelectric constant (-2252 pm/V) and coupling coefficient (0.95) for the transverse piezoelectric mode. A unimorph PMN-PZT cantilever with an aluminum substrate is tested under base excitation and its electromechanical response is predicted with a coupled distributed parameter model. The power generation performance of the device is 138 mu W/(g(2) cm(3)) at 1744 Hz, causing 84% tip vibration attenuation due to the resistive shunt damping effect.

引用

页数：3

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