中文摘要：

针对目前采用ANSYS建立超声电动机有限元模型效率低下的问题,提出利用ANSYS和Pro/E集成的方法建立超声电动机有限元模型.该方法能充分发挥Pro/E强大的实体建模功能和ANSYS强大的有限元分析功能,能弥补ANSYS建模功能较差的缺点.详细分析了ANSYS和Pro/E集成的3种方式,其中,利用ANSYS/ProFEA接口模块进行数据传输的集成方式能正确完整地将Pro/E中构建的三维几何模型传递到ANSYS中,并有利于进一步的有限元分析.介绍了集成方式建模时需要注意的单位设置、单元类型选择及相应的网格划分类型选择等问题.以粘接结构和螺栓紧固结构的超声电动机为例,介绍了建立超声电动机有限元模型的具体实现方法.最后,以薄板面内模态直线型超声电动机为例,通过将集成方式建模的理论计算结果与ANSYS建模的理论计算结果和实验结果对比,证明集成方式建模不但效率高,而且计算精度高,非常适用于超声电动机的设计及优化.

英文摘要：

In order to solve the present problem of low efficiency in building finite element models of ultrasonic motorsby ANSYS, the method of the integration of ANSYS and Pro/ E was proposed. The method can sufficiently exert powerfulfunctions in entity building of Pro/ E and powerful functions in finite element analysis of ANSYS, so the disadvantage in en-tity building of ANSYS can be made up. Three methods of the integration of ANSYS and Pro/ E were analyzed in detail, ofwhich the method of applying ANSYS/ ProFEA interface module to transmit data can wholly transfer three-dimensional ge-ometry models of Pro/ E into ANSYS, and make for further finite element analysis of ANSYS. When the method was ap-plied, some problems must be paid attention to such as setting unit, choosing element type and corresponding mesh typewhich were introduced. Taking the bonding structure and bolt fastening structure ultrasonic motors as examples, specificmeasures to build finite element models of ultrasonic motors were introduced. In the end, taking the thin-plate linear ultra-sonic motor using in-plane modes as an example, through comparing theoretical calculation results from the method withtheoretical calculation results from ANSYS modeling and the experimental results, it is proved that the method has not onlyhigh efficiency but also high percision, so the method is ideally suitable for ultrasonic motor design and optimization.