线圈式电磁发射中的涡流分析  

Analysis of the Eddy Current in a Coil Electromagnetic Launch

作　　者：张朝伟[1] 李治源[2] 程树康[2] 王莹[1] 

机构地区：[1]军械工程学院,石家庄050003 [2]哈尔滨工业大学,哈尔滨150001

出　　处：《微电机》2005年第1期19-22,共4页Micromotors

摘　　要：重接式电磁发射实际上是一种特殊形式的线圈式电磁发射,由在发射体内感生的涡流和线圈磁场相互作用产生电磁力来加速发射体。发射体内的涡流对发射器的性能至关重要。本文在涡流的二维模型的基础上,分别对涡流和其产生的磁场特性进行了仿真分析,所获得的结果对进一步提高发射器的性能有参考作用。The reconnection electromagnetic Iaunch(EML)is a special type of coil EML.The interaction between the magnetic field of the coil and the eddy current induced in a projectile can Iaunch the projectile.The eddy current is extremely important for the performance of Iauncher.Based on 2-D model of the eddy current,the characters of eddy current and magnetic field generated by the eddy current are analysed in this paper.Lastly,the simulation is performed and the results are useful for improvement of the launcher's performance further.

关 键 词：直线电机 线圈式电磁发射器 涡流分析 趋肤效应 仿真分析 

分 类 号：TM359.4[电气工程—电机] TP391.9[自动化与计算机技术—计算机应用技术]