3种不同形状电枢对线圈炮发射性能影响的仿真分析

分析电磁线圈炮基本原理，建立单级感应线圈炮数学模型，并借助Matlab仿真软件，对3种不同形状（锥体、半球体和圆柱体）电枢的线圈炮进行仿真。分别得到电枢与驱动线圈之间互感与互感梯度的相对位置变化曲线、电枢内涡流分布及随时间变化曲线，3种发射器在同一坐标下的射弹电磁力-时间和速度-时间变化曲线。通过对比分析，确定了线圈炮合理的电枢形状，为线圈炮的系统结构设计奠定了基础。

Analysis on Induced Coilgun with Three Kinds of Armatures

With the basic physical principle ,the mathematic model of the inductive coilgun is established. The numerical analysis of the inductive coilguns with three kinds of armatures （ with the shape of cone, hemispheroid,and cylinder）have been carried out with the software Matlab. The numerical results about the mutual inductance, the mutual inductance gradient between the driving coil and the armature, the inductive current distribution, the electromagnetic force and the velocity are shown contrastively. As a result, the armature with column shape is preferable to more preponderant than the others, which is important for the launcher design in an inductive coilgun system.