Analysis of electromagnetic characteristics of the proposed composite four-rail electromagnetic launcher

IF 1.9 4区材料科学 Q3 Materials Science

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI:10.1515/secm-2022-0010

Li Tengda, Feng Gang, Liu Shaowei

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引用次数: 1

Abstract

Abstract In the existing composite four-rail electromagnetic launcher (CFREL), the armature and rail contact surface produces significant heat and bears considerable wear, thereby reducing the potential amount of electromagnetic thrust to be generated. To eliminate the damage caused by the thermal effect of the rail contact surface and to meet the electromagnetic thrust demand of the load, a CFREL is proposed. The proposed CFREL model is constructed, and the launcher’s electromagnetic characteristics are simulated and compared using the finite element method. The current density, distribution of magnetic flux density, and electromagnetic thrust characteristics are analysed. The results showed that the proposed CFREL reduced the maximum current density of the contact surface and effectively eliminated the current concentration of the armature and rail contact surfaces. Effective magnetic field shielding is realised with a larger range, which can better meet the requirements of the intelligent load’s magnetic field environment and provide stronger electromagnetic thrust for the load, hence solving the problem of insufficient thrust.

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复合四轨电磁发射器电磁特性分析

在现有的复合四轨电磁发射装置(CFREL)中，电枢与导轨接触面产生大量热量并承受相当大的磨损，从而降低了产生电磁推力的潜在量。为了消除钢轨接触面热效应造成的损伤，满足负载对电磁推力的需求，提出了一种CFREL。建立了CFREL模型，利用有限元方法对发射装置的电磁特性进行了仿真比较。分析了电流密度、磁通密度分布和电磁推力特性。结果表明，CFREL降低了接触面的最大电流密度，有效地消除了电枢和钢轨接触面的电流集中。实现了更大范围的有效磁场屏蔽，能够更好地满足智能负载磁场环境的要求，为负载提供更强的电磁推力，从而解决了推力不足的问题。

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来源期刊

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.