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变温环境对压电圆板频率主动控制的影响
引用本文:周又和,郑晓静.变温环境对压电圆板频率主动控制的影响[J].力学学报,1998,30(1):58-64.
作者姓名:周又和  郑晓静
作者单位:兰州大学力学系,730000
基金项目:国家自然科学基金,国家教委留学回国人员基金,优秀年轻教师基金
摘    要:定量研究了具有几何非线性热弹性压电圆板的频率压电控制特征,考察了环境温度改变引起的热弹性效应和非线性大振幅振动对其控制特性的影响等.研究结果表明:环境温度的变化使压电控制的固有频率受到影响,而在压电电压较大时,振幅对振动频率影响不大.

关 键 词:几何非线性  热弹性  压电圆板  主动控制  变温

EFFECT OF CHANGING TEMPERATURE ON ACTIVE CONTROL OF VIBRATING FREQUENCY OF PIEZOELECTRIC CIRCULAR PLATES 1)
Zhou Youhe,Zheng Xiaojing.EFFECT OF CHANGING TEMPERATURE ON ACTIVE CONTROL OF VIBRATING FREQUENCY OF PIEZOELECTRIC CIRCULAR PLATES 1)[J].chinese journal of theoretical and applied mechanics,1998,30(1):58-64.
Authors:Zhou Youhe  Zheng Xiaojing
Abstract:This paper is to quantitatively study the characteristics of active control of vibrating frequency of a piezothermoelectric circular plate with nonlinear deformation, and the effect of changing temperature of environment and the large amplitude of vibration on the characteristics.The results show that the changing temperature of environment of the plate has influence on the controlled frequency of vibration of the plate by means of piezoelectric voltage. When the controlled voltage is high enough, the effect of vibrating amplitude on the characteristic of voltage-vibrating frequency is not notable.
Keywords:nonlinear geometricity  thromoelasticity  piezoelectric circular plate  active control  effect of changing temperature  
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