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中文摘要：
结构动力有限元模型的维数会影响动力响应分析的计算效率。针对ANSYS提供的模态叠加法不能施加位移载荷的问题,该文介绍了一种压电复合结构分析法。在用ANSYS软件进行静态电学分析、模态分析的基础上,从能量分析的角度,间接提取特定的模态参数和相应等效电路模型的电学参数,并由此得到结构的频率响应特性。以超声电机定子为例进行了计算,并与ANSYS完整法谐响应分析的结果进行了对比。
英文摘要：
The dimension of the dynamic finite element model will affect the computation efficiency of the structural dynamic response analysis.Considering that displacement loads can not be applied using the modal superpose method provided by ANSYS,an analysis method for piezo-compound structure is introduced.Based on the static modal analysis conducted by ANSYS,the modal parameters are indirectly obtained from the results by means of the energy analysis,and the frequency response characteristics are calculated.The dynamic analysis of the stator of ultrasonic motor is investigated,and the results are compared with those from the full harmonic response analysis using ANSYS.
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