考虑复杂边界条件的电机结构模态分析

Model Analysis of Electric Machine by Considering Complex Boundary

本文对大中型电机结构的边界条件进行合理简化和等效,使计算模型能够代表真实电机系统的质量和刚度分布,从而得到准确有效的电机结构模态。通过仿真计算和试验验证表明,本文提出的建模和模态分析方法是合理有效的,对大中型电机的结构设计有较好的指导意义。

For the complex structure of the large and medium motors, how to predigest the model of motor structure reasonably is the base of researchig dynamics further. This article focuses on how to equate the whole structure of complex motor reasonably, making the calculation model represent realistic motor system mass and stiffness distribution, and thus obtains the accurate and valid motor stucture inherent frequency and the corresponding strikeout.the method of modeling and ansysis in this paper is proved to be reasonably and efficienct by emulationally computing and result of experiment, and the harvest has good significance to structure design of large and medium motor.