基于多面体模型的电机装配误差分析
Assembly error analysis of motor based on polyhedron model
阮天昊 1张永亮 1王书楠1
作者信息
- 1. 上海理工大学 机械工程学院,上海 200093
- 折叠
摘要
电机装配时各零件的偏差累积会影响电机气隙,导致电机性能与装配质量下降,因此需对装配后电机定转子间的气隙进行公差分析.为做好公差分析,以电机气隙作为装配功能要求,建立装配偏差传递路径上的多面体模型,对串并联装配结构的多面体模型进行闵可夫斯基求和与求交运算,最终得到装配体气隙沿径向平动的变化范围.运用3DCS基于蒙特卡洛法对电机气隙进行仿真,验证了多面体模型法求解所得装配误差的准确性和合理性,对电机的公差设计具有一定的参考价值.
Abstract
The accumulation of deviation of each part during motor assembly will affect the motor air gap,leading to the decrease of motor performance and assembly quality.Therefore,it is necessary to conduct tolerance analysis on the air gap between the fixed rotor of the motor after assembly.Taking the motor air gap as the assembly function requirement,the polyhedron model on the assembly deviation transfer path was established,and the polyhedron model of series and parallel assembly structure was calculated by Minkowski summation and intersection.Finally,the variation range of assembly air gap along the radial translation was obtained.3DCS was used to simulate the motor air gap based on Monte Carlo method,and the accuracy and rationality of assembly errors obtained by polyhedral model method were verified,which has certain reference value for the tolerance design of motor.
关键词
电机/多面体模型/公差分析/串并联装配结构/误差传递Key words
motor/polyhedron model/tolerance analysis/series and parallel assembly structure/error transfer引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据