等离子体对电磁轨道炮身管内壁烧蚀磨损及疲劳寿命影响研究

Effect of Plasma on Ablation Wear and Fatigue Life of Inner Wall of Electromagnetic Rail Gun

通过workbench多物理场的耦合分析,考虑最大温度对温度场的影响,进行了等离子体对电磁轨道炮烧蚀磨损和疲劳损伤的有限元建模和分析。通过理论分析和仿真计算发现,理想状态下,添加等离子体会比不添加等离子体时降低烧蚀磨损,电枢和轨道承受的最大应力分别降低了99.427%,99.73%,寿命大幅提升。

In order to study the effect of plasma on the ablation wear and fatigue life of the inner wall of the electromagnetic track gun barrel,the paper used the workbench to analyze the multi-physics coupling,the ablation wear and fatigue damage of electromagnetic track gun were modeled and analyzed by finite element method.Through theoretical analysis and simulation calculation,ideally,after adding plasma,the ablation wear was greatly reduced,and the maximum stress received by the armature and the track was reduced by 99.427%and 99.73%,respectively,and the life was greatly improved.