同步感应电磁推进中的套筒应力形变研究  

Analysis on the Mechanical Strain of the Metal Sleeve in Synchronous Inductive Electromagnetic Propulsion

作　　者：付磊[1] 蒋启龙[1] 王豫[1] 王学伦[1] 

机构地区：[1]磁浮技术与磁浮列车教育部重点实验室,西南交通大学,四川成都610031

出　　处：《铁道学报》2012年第2期36-40,共5页Journal of the China Railway Society

基　　金：国家科技支撑计划(2009-BAG12A05-02)

摘　　要：为研究同步感应电磁推进系统中套筒(加速体)在强磁场环境中受力形变及其对系统加速力的影响情况,本文对同步感应电磁推进系统中的套筒受力进行理论分析。采用ANSYS有限元软件对单级同步感应电磁推进系统建立电路-磁场-结构耦合分析模型,重点研究套筒自身结构参数对其应力形变的影响。结果表明:同步感应电磁推进系统加速过程中,套筒在径向变形严重,套筒径向结构参数是影响套筒变形的主要因素。合理的选择套筒外内半径比不仅可以改变套筒的应力形变,而且有利于改进系统的加速效果。To study the mechanical strain of the metal sleeve（projectile） and its influence on acceleration in the intense magnetic field,theoretical analysis was made on the stressed metal sleeve in the synchronous inductive electromagnetic propulsion system and the circuit magnetic-field structure coupled model was established by ANSYS.Emphasis was laid on study of the influence of the sleeve structure parameters on mechanical strains.The simulation results reveal as follows：The radial components of the metal sleeve was the may factor to cause mechanical strains;in the design of the metal sleeve,the proper structure can change the mechanical strains of the metal sleeve and improve the acceleration performance of the system.

关 键 词：电磁推进 结构应力 形变 有限元 

分 类 号：TM346[电气工程—电机]