同步感应电磁推进系统中电枢制造材料的选择

摘要

Some theoretical analysis of the synchronous inductive electromagnetic propulsion was carried out and the equivalent circuit model of single-stage system was established, thus setting up a relation with the eddy current and the armature material parameters. Based on the electromagnetic field finite element software, the influence of armature material parameters on armature stress, armature speed and energy operating fator was analyzed. Simulation results reveal that the armature material parameters influence the armature stress, the operating factor and the mass of the projectile directly and the aluminous is the best choice for making armature. This result is useful for the design of armature.%对同步感应电磁推进系统进行了理论分析并建立了单级系统的电路模型,直接建立了电枢制造材料的基本物理参数与电枢感应涡流之间的联系.通过有限元仿真软件模拟比较了不同材质的电枢对电枢受力及电枢加速速度的影响,计算了不同材质电枢对整体系统能量转化效率的影响.结果表明:电枢制造材料的选择将影响电枢的受力方式、整体系统的能量转化率及有效加速载荷的质量,铝制材料在几种电枢制造材料中表现最优.以上分析可为同步感应型电磁推进系统的电枢设计提供参考.