PIEZOTHERMOELASTICITY AND PRECISION CONTROL OF PIEZOELECTRIC SYSTEMS - THEORY AND FINITE-ELEMENT ANALYSIS

被引：168

作者：

TZOU, HS

YE, R

机构：

[1] Department of Mechanical Engineering, University of Kentucky, Lexington, KY

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 1994年 / 116卷 / 04期

关键词：

16;

D O I：

10.1115/1.2930454

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Piezothermoelastic effects of distributed piezoelectric sensor/actuator and structural systems are studied. Distributed controls (static and dynamic) of piezoelectric laminates subjected to a steady-state temperature field are investigated. Piezothermoelastic constitutive equations are defined, followed by three energy functionals for the displacement, electric, and temperature fields, respectively. A new 3-D piezothermoelastic thin hexahedron finite element with three internal degrees of freedom is formulated using a variational formulation which includes thermal, electric, and mechanical energies. A system equation for the piezoelectric continuum exposed to combined displacement, electric, and temperature fields is formulated. Distributed sensing and control equations of piezoelectric laminates in a temperature field are derived. Thermal influences on the sensing and control of piezoelectric PZT/steel laminates are investigated in case studies.

引用

页码：489 / 495

页数：7

共 16 条

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