电磁轨道炮电枢多场耦合分析与试验研究

Multi-Field Coupling Analysis and Experimental Research on Armature of Electromagnetic Railgun

电枢是电磁轨道炮的关键部件之一,其结构直接影响轨道炮的发射性能。在轨道炮发射过程中,电枢与轨道接触面上流过强大的电流,局部高温会导致金属材料熔化,从而影响接触性能。该文基于对电枢的功能分解建立典型C型电枢的参数化模型,重点围绕普通C型电枢和马鞍C型电枢,利用有限元软件Ansys对其电磁场-温度场-结构场进行多场耦合分析,并在发射装置样机上开展动态发射试验。试验结果验证了仿真分析的正确性,同时为电枢设计提供了技术支撑。该文的研究成果对固体C型电枢的设计与试验具有重要参考意义。

As the key part of electromagnetic railgun,the geometry structure of armature deeply affact the lunch performance of railgun.During the lunch progress,high current transmit the interface of armature and rail,and the high temperature could make the metal melt,then affact the contact performance.In this paper,Based on the function decomposition of armature,the parameterized model of the typical C type armature was established,emphasis on the ordinary C type armature and saddle C type armature,the electromagnetic-temperature-structure field coupling analysis was simulated by using FEM software Ansys,and the dynamic launching test was carried out on the launcher.The test results verify the validity of the simulation analysis,and provides technical support for the armature design.The research results in this paper have important reference value for the design and test of solid C armature.