线圈型电磁发射器换向过程分析

Commutating Analysis of the Coil Electromagnetic Launcher

定量地分析了线圈型电磁发射器换向过程中能量的转化及转移,并利用Ansoft电磁场有限元分析软件对换向过程进行了仿真计算,得到以下结论:①换向过程中,驱动线圈层数固定时,增大弹丸线圈层数会提高发射器能量转换效率;②弹丸线圈层数固定时,驱动线圈层数增大会在一定程度上降低发射器能量转换效率;③当驱动线圈与弹丸线圈层数较大时,换向之后储存在炮管线圈中的巨大能量会在炮口处以炮口电弧的形式释放。

The transformation and diversion of energy during commutating process of the coil electromag- netic launcher （coil EML） was quantificationally analyzed and the commutating process of the coil EML was numerically simulated using Finite Element software Ansoft. The conclusions are as follows： if the quantity of the layers of the drive coil is fixed, the efficiency of the magnetic energy transforming to the ki- netic energy would be induced by the increase of the quantity of the layers of the projectile coil; if the quantity of the layers of the projectile coil is fixed, the efficiency of the magnetic energy transforming to the kinetic energy would be reduced by the increase of the quantity of the layers of the drive coil ; if the quanti- ty of the layers of the projectile coil and the drive coil reached a specific value, the residual energy would be released in the form of the electric arcing at muzzle.