论文成果
叉指形电极压电执行器的热弹性比拟分析方法
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  • 发表时间:2015-01-01
  • 发表刊物:压电与声光
  • 所属单位:机械工程学院
  • 文献类型:J
  • 卷号:37
  • 期号:1
  • 页面范围:32-34
  • ISSN号:1004-2474
  • 摘要:Based on the analogy analysis between the constitutive equation of converse piezoelectric effect and thermo-elastic effect, an actuation voltage has analogy to a thermal load, and piezoelectric strain coefficient has analogy to orthotropic thermal expansion coefficient. Then, the thermo-elastic finite element method can be employed to analyze the static displacement of the inter-digital electrodes of the piezo-actuator. A correction coefficient is introduced to modify the non-uniformity and nonlinearity caused by local electric field of the inter-digital electrodes. The numerical and experimental examples confirm that piezoelectric-thermal analogy approach is valid and simple. ?, 2015, Yadian Yu Shengguang/Piezoelectrics and Acoustooptics. All right reserved.
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