直线电机牵引颤振研究  

Study on Traction Flutter of Linear Motor

作　　者：聂启秀 崔晓璐[1] 陈光雄[1] NIE Qixiu;CUI Xiaolu;CHEN Guangxiong(School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机械》2017年第7期1-5,共5页Machinery

基　　金：国家自然科学基金资助项目(51275429)

摘　　要：建立了由直线电机定子和吊杆等组成系统的有限元模型,利用ABAQUS软件对该直线电机系统牵引颤振进行瞬态动力学仿真,研究直线电机牵引颤振发生的条件和横向拉杆对直线电机振动的影响。仿真结果显示,电磁牵引力-滑动速度的负斜率引起直线电机发生颤振,直线电机在惰行情况下不发生颤振;横向拉杆能够较大的减小直线电机的横向和垂向振动,对直线电机的纵向振动影响不大;直线电机横向和垂向之间存在耦合振动。To study the occurrence condition of traction flutter of linear motor and the influence of the transverserod on the linear motor vibration,a finite element model of the linear motor stator and hanger system isestablished.A transient dynamic simulation of the linear motor system is carried out by using ABAQUSsoftware.The simulation results show that the negative slope of the electromagnetic force relative to slidingspeed causes the linear motor to flutter,the linear motor does not flutter in the condition of inertia.Thetransverse rod can greatly supress lateral and vertical vibrations of the linear motor,but it has an effect on thelongitudinal vibration of the linear motor.There is coupling vibrations between the transverse and verticaldirection of linear motor.

关 键 词：直线电机 颤振 有限元分析 瞬态动力学 

分 类 号：U264.14[机械工程—车辆工程]