Influence of the orbital configuration of a four-rail electromagnetic launcher on Joule heat

IF 0.8 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Advanced Electromagnetics Pub Date : 2022-10-05 DOI:10.7716/aem.v11i4.2003

P. Zhang, T. Shu

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引用次数: 1

Abstract

During the working process of electromagnetic launcher, the rapid temperature rise caused by heat accumulation has an important influence on the performance and life of the armature and rail. In order to better solve the thermal ablation problem of the armature and rail of the four-rail electromagnetic launcher, three different configurations of the rail and armature model are established, using the finite element method, the Joule heating characteristics of the three structures are simulated, analyzed and compared. The simulation results show that the Joule heat of the armatures of the three structures is concentrated at the throat, and the Joule heat of the rail is concentrated at the edge of the rail and the contact surface of the pivot rail; among the three structures, the electromagnetic launcher of the convex rail-concave armature structure has the smallest temperature rise rate, in addition, the peak temperature on the contact surface between the armature and the guide rail is the lowest, the safety of the ammunition is the highest, and the performance is more advantageous than the electromagnetic launcher of the other two structures.

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四轨电磁发射装置轨道构型对焦耳热的影响

电磁发射装置在工作过程中，热积累引起的快速温升对电枢和导轨的性能和寿命有重要影响。为了更好地解决四轨电磁发射装置电枢和导轨的热烧蚀问题，建立了三种不同结构的导轨和电枢模型，采用有限元方法，对三种结构的焦耳加热特性进行了仿真、分析和比较。仿真结果表明，三种结构的电枢的焦耳热集中在喉部，导轨的焦耳热集中在导轨边缘和枢轴导轨接触面;三种结构中，凸轨-凹电枢结构的电磁发射装置温升率最小，电枢与导轨接触面的峰值温度最低，弹药的安全性最高，性能比其他两种结构的电磁发射装置更有优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Electromagnetics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.40

自引率

12.50%

发文量

审稿时长

10 weeks

期刊介绍： Advanced Electromagnetics, is electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The aim of the journal is to become a premier open access source of high quality research that spans the entire broad field of electromagnetics from classic to quantum electrodynamics.