电机转子铁芯剥离模型建立与径向磁密分析  

Peeling Model Establishment and Radial Magnetic Density Analysis of Motor Rotor Core

作　　者：杜冰 崔海龙[2] 刘凤华 周茂伟 黄秀东 杨灿军 邹春华[3] 严翔 Du Bing;Cui Hailong;Liu Fenghua;Zhou Maowei;Huang Xiudong;Yang Canjun;Zou Chunhua;Yan Xiang(School of Mechanical Engineering,Zhejiang University,Hangzhou 310027;Yanshan University,Key Laboratory of Advanced Forging Stamping Technology and Science,Ministry of Education of China,Qinhuangdao 066004;Ningbo Zhenyu Technology Co.,Ltd.,Ningbo 315613;School of Information and Intelligent Engineering,Zhejiang Wanli University,Ningbo 315100)

机构地区：[1]浙江大学机械工程学院,杭州310027 [2]燕山大学,先进锻压成形技术与科学教育部重点实验室,秦皇岛066004 [3]宁波震裕科技股份有限公司,宁波315613 [4]浙江万里学院信息与智能工程学院,宁波315100

出　　处：《汽车工程》2022年第8期1226-1236,共11页Automotive Engineering

基　　金：新能源汽车驱动电机铁芯模内精准胶接高速冲压关键技术研究(x2020229);宁波市科技创新2025重大专项(2021E006)资助。

摘　　要：为保证车用永磁同步电机转子铁芯具有承受较大剥离力的能力,又避免对转子铁芯进行破坏性的剥离实验,本文基于力能等效原则并引入双线性内聚力模型,对叠铆型和胶粘型铁芯进行建模,并通过仿真获得转子铁芯剥离力。首先,构建了电机转子铁芯剥离实验平台,比较了两种叠压工艺的最大剥离力,接着,利用ANASY Maxwell软件对两种工艺下永磁同步电机空载径向磁密进行了仿真分析。结果表明,采用胶粘工艺可大幅提高铁芯的剥离强度,同时提高了胶粘型铁芯电机的运行效率和气隙磁场的正弦度,降低了电机运行电流和损耗。To ensure that the rotor core of automotive permanent magnet synchronous motor(PMSM)has the ability to withstand large peeling forces,while avoiding destructive peeling test,two stacking processes,i.e.stacked riveting and adhesive process are modeled based on the principle of force-energy equivalence and the bilinear cohesion model introduced,with the peeling forces of rotor core obtained through simulation in this paper. Firstly,a peeling test platform for motor rotor core is constructed to compare the maximum peeling force of two stacking processes by test. Then the no-load radial magnetic density of PMSM under two processes is analyzed by simulation with ANASY Maxwell. The results show that the adhesive process adopted can greatly enhance the peel strength of the iron core,and meanwhile increase the operation efficiency of motor and the closeness of air-gap magnetic field to sine function,and reduce the operating current and losses of motor.

关 键 词：转子铁芯 内聚力 力能等效 剥离强度 径向磁密 

分 类 号：U463.6[机械工程—车辆工程]