感应线圈炮性能的场路结合分析

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Abstract Performance analysis of inductive coil gun is very important for its experimental research and electromagnetic optimization design. Circuit simulation is carried out based on current filament model (CFM), and the governing equations of CFM may be boiled down to initial value problem of non-linear variable coefficient ordinary differential equations, which can be solved by numerical method and is easy to program. From circuit simulation, the dependence of system performance on variable parameters can be found. Field model is built based on composite grid method (CGM); CGM uses two sets of mutual independent grids to discrete solution regions; it overcomes the trouble of remeshing in normal finite element method (FEM), which is built based on one set of grid. In this paper performance analysis of three stages coaxial inductive coil gun is carried out based on field coupling circuit method. Three dimensional moving conductor eddy current (MCEC) simulation of coil gun is realized, and field variables distribution in the launching process is obtained. By comparing the results of circuit model and field model the validity of the two models are proved.

Key words： Coil gun current filament model composite grid method finite element method moving conductor eddy current

Received: 10 March 2009 Published: 04 March 2014

PACS:	TM133
	TM154

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	Liu Shoubao
	Ruan Jiangjun
	Du Zhiye
	Huang Daochun

Cite this article:

Liu Shoubao,Ruan Jiangjun,Du Zhiye等. Analysis of Inductive Coil Gun Performance Based on Field Coupling Circuit Method[J]. Transactions of China Electrotechnical Society, 2010, 25(12): 1-7.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I12/1

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