Nonlinear problems in electrothermoelasticity
Nonlinear problems in electrothermoelasticity
复制标题
电热弹性非线性问题
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
S. Erofeev
中科院分区：
文献类型：
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作者：
S. Erofeev
解决问题的电弹性的纵向振动的压电杆在纵向领域和径向振动的压电圆盘与极化沿着其厚度（在附件型固定的情况下）的结果。考虑到陶瓷的物理化学性质的温度依赖性，并且关于陶瓷的自加热获得压电元件的温度场。所获得的非线性依赖性进行比较的线性部分的解决方案。为了计算和设计压电器件时考虑压电介质中的热现象，提出了一个优化的模型。
Results of solving problems of electroelasticity for longitudinal vibrations of a piezoelectric rod in a longitudinal field and for radial vibrations of a piezodisk with polarization along its thickness (in the case of an attachment-type fixation) are presented. The temperature dependence of the physicochemical properties of the ceramics is taken into account, and the temperature field of the piezoelement is obtained with regard to self-heating of the ceramics. The obtained nonlinear dependences are compared with a linear part of the solution. For calculating and designing piezoelectronic devices with thermal phenomena in the piezomedium taken into account, an optimal version of the model is proposed.