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首页> 外文期刊>IEEE Transactions on Plasma Science >Investigation of Synchronous Induction Coilgun With Stepped Coil Launcher and Stepped Armature
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Investigation of Synchronous Induction Coilgun With Stepped Coil Launcher and Stepped Armature

机译：阶梯式线圈发射器与阶梯式电枢同步感应线圈吞

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摘要

Synchronous induction coilgun (SICG) typically includes an array of drive coils and a conductive armature. The structure of the drive coil and armature can greatly affect the launching performance of SICG. The traditional drive coils and armatures have a cylinder-shaped structure for simplicity and ease of fabrication. In this article, a novel structural SICG with stepped drive coil and stepped armature (SA) is proposed and investigated. As a comparison, four structural SICGs are researched by static and transient simulations. The static simulation results show that the stepped drive coil makes the magnetic field larger and the center of the magnetic field moves backward toward the tail end. The transient simulation results indicate that the SA improves the eddy current distribution and the positive propulsion force and weakens the reverse electromagnetic force and the armature capture effect at the same time. As a result of integrating the above characteristics, the new structural SICG with stepped drive coil and SA makes the optimal trigger position of armature move backward by 7 mm and improves the muzzle velocity by 4.79 & x0025; and the launch efficiency by 9.82 & x0025;.
机译：同步感应线圈（SICG）通常包括驱动线圈和导电衔铁阵列。驱动线圈和电枢的结构可以极大地影响SICG的发射性能。传统的驱动线圈和动手具有圆柱形结构，用于简单性和易于制造。在本文中，提出并研究了具有阶梯式驱动线圈和阶梯式电枢（SA）的新型结构SiCG。作为比较，通过静态和瞬态模拟研究了四种结构SICG。静态仿真结果表明，阶梯式驱动线圈使磁场更大，磁场的中心向后移动向后移动。瞬态仿真结果表明SA改善了涡流分布和正动力，同时削弱了反向电磁力和电枢捕获效果。作为整合上述特性的结果，具有阶梯式驱动线圈的新型结构SiCG，SA使电枢的最佳触发位置向后移动7毫米，并通过4.79＆X0025提高枪口速度;和发射效率为9.82＆x0025;

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