Effects of Driving Coil Connection Modes on Emission Efficiency of MFEL

doi:10.3969/j.issn.1000-1093.2017.04.003

Abstract

Abstract: Multipole field electromagnetic launcher (MFEL) is a novel electromagnetic launching technology. MFEL has the numerous adjustable parameters and flexible driving coil connection modes, which can significantly affect the efficiency of system. The formula of repulsion force on armature and waveform matching problem are analyzed based on the equivalent circuit model, and the influence of driving coil connection mode on emission efficiency under different voltages (capacitances) and multi-stage electromagnetic launch is studied by using the electromagnetic finite element method. The simulated results indicate that different voltages (capacitances) need to match with different driving coil connection modes in order to achieve greater emission efficiency. In the case of multi-stage sextupole field electromagnetic launch, the driving coil connection modes also should be changed with armature speed, which can realize waveform matching well and improve the emission efficiency with the slight change of capacitance.Key

Key words: ordnancescienceandtechnology, multipolemoment, equivalentcircuit, waveformmatching, connectionmode, emissionefficiency, finiteelementmethod

CLC Number:

FAN Guang-cheng， JIANG Ming-yang， LONG Xiao-fei， DENG Hui-min， YAN Zhong-ming， WANG Yu. Effects of Driving Coil Connection Modes on Emission Efficiency of MFEL[J]. Acta Armamentarii, 2017, 38(4): 643-650.

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第38卷
第4期2017 年4月兵工学报ACTA
ARMAMENTARIIVol.38No.4Apr.2017

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