机床进给永磁直线电机整机系统振动分析  

Vibration Analysis Method of Machine Tool Feed Permanent Magnet Linear Motor

作　　者：关名赫 董婷[1] 冯威 GUAN Minghe;DONG Ting;FENG Wei(College of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《微特电机》2023年第7期8-13,共6页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(52177054);沈阳市中青年科技创新人才支持计划项目(RC210213)。

摘　　要：永磁直线电机自身结构特点带来的波动电磁力会引起电机振动,其振动机理与传统旋转电机振动存在差异,尚缺乏直线电机振动的系统分析。以一台14极12槽的永磁直线电机样机为研究对象,分析了电机电磁激振力波主要阶次和频率。探究直线电机振动的分析方法,对动子铁心和考虑整机系统进行模态与振动分析并对比。通过样机实验测试电机振动,并与两种分析模型下的仿真结果作对比。结果表明,电磁力是振动的主要来源,机械环节特性对振动影响很大,不能忽略,考虑整机系统的振动方法能够较好地反映实际工况下直线电机振动情况。The fluctuating electromagnetic force brought by permanent magnet linear motor due to its own structural characteristics will cause motor vibration,and the vibration mechanism is different from that of traditional rotating motor.There is no systematic analysis of linear motor vibration.Taking a 14-pole 12-slot permanent magnet linear motor as the research object,the main order and frequency of electromagnetic excitation force wave of the motor were analyzed.The analysis method of linear motor vibration was explores,and modal and vibration analysis were made and compared on the rotor core and the whole system.The motor vibration was tested by prototype experiment and compared with the simulation results under two analysis models.The results show that electromagnetic force is the main source of vibration,and the characteristics of mechanical links have great influence on vibration,which can not be ignored.The vibration method considering the whole system can better reflect the vibration of linear motor under actual working conditions.

关 键 词：永磁直线电机 电磁激振力 进给系统 模态 振动 

分 类 号：TM351[电气工程—电机] TM359.4