静止条件下多种轨道-电枢形状的轨道炮电流分布仿真

针对等轨道截面、等炮口截面、等长度、等材料和等电流8种典型的轨道-电枢结构，在电枢速度为0 m／s的情况下，采用Ansoftl 2有限元分析软件，仿真分析电流分布特征，得到：矩形截面轨道一长方体结构电枢的轨道炮有最不均匀的电流分布特征，电流主要分布在轨道外表面和电枢后部凹表面，并且分别对应于趋肤效应和电流短路径聚集现象，跑道形截面的轨道一回转体结构电枢的轨道炮有最均匀的电流密度分布．

Finite Element Simulation on Current Distribution Feature of Multiple Rail-Armature Structures for EM Rail Launchers under Static Conditions

In this paper, electric current density of eight typical armature-rail structures with the same values of the rail section area,the muzzle section area,the rails ~ length , the material and cir- cuit current under static condition are contrastively analyzed by Ansoft12. The results indicate the following：the current is mainly distributed on the outer skin of the rails and the back skin of the armature; the launcher with runway-shaped cross section rail and rotor armature structure has the most even electric current distribution; and launcher with rectangle-cross-section rail and cuboid armature structure has the most uneven electric current distribution.