铜基复合型四极轨道电磁特性仿真分析

doi:10.12305/j.issn.1001-506X.2021.11.03

Abstract

Abstract:

In the working process of four rail electromagnetic launch, the thermal effect caused by current concentration will affect the launch accuracy and rail life. In order to alleviate the rail thermal damage and mechanical wear caused by high current, a copper based composite four rail electromagnetic launch model is proposed and its electromagnetic characteristics are studied. The current density and magnetic field distribution of composite and common four rail electromagnetic launch are simulated and compared by using finite element method; The effects of the parameters of the composite layer on the current density, magnetic field intensity and armature force are analyzed. The simulation results show that the composite four rail electromagnetic launch can reduce the current density and improve the current distribution of the armature rail interface; The composite four track electromagnetic launch has a larger magnetic field shielding range at a specific position, which can provide a good magnetic field environment for intelligent ammunition; The current density, magnetic field intensity and armature thrust increase with the increase of the thickness ratio of copper to steel.

Key words: electromagnetic launch, quadrupole magnetic field, composite orbit, electromagnetic characteristics, finite element simulation

CLC Number:

TJ768.2

Tengda LI, Gang FENG, Shaowei LIU, Jianming SHI, Chengli FAN. Simulation analysis of electromagnetic characteristics of copper-based composite quadrupole orbit[J]. Systems Engineering and Electronics, 2021, 43(11): 3054-3063.

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References 26

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	材料	长/mm	宽/mm	高/mm	电导率/(S/m)
普通轨道	铜	500	10	20	5.8×10⁷
复合轨道	铜	500	8	20	5.8×10⁷
复合轨道	钢	500	2	20	2.0×10⁶
电枢	铝	25	25	10	3.8×10⁷

参数	材质	普通型	铜-钢厚度比
参数	材质	普通型	1∶1	4∶1	9∶1
I_max	铜	20.2	2.7	3.4	3.6
	钢	4.9	1.1	1.4	1.5
	铝	－	16.2	17.1	18.3

参数	材质	普通型	铜-钢厚度比
参数	材质	普通型	1∶1	4∶1	9∶1
B_max	铜	54.6	45.4	50.5	52.2
	钢	-	37.1	42.6	45.3
	铝	121.2	120.7	120.6	120.2

参数		F_x	F_y	F_z	MagF
铜-钢厚度比	1∶1	7.9	4.6	91.1	91.6
	4∶1	4.8	4.5	92.3	92.5
	9∶1	20.6	11.4	94.2	97.1
普通型		21.4	51.1	95.6	110.5

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[2]	MA Xin1， WAN Guobin1， GUO Yun2. Effect of multivariable random manufacturing errors on electromagnetic #br# characteristics of frequency selective surface [J]. Systems Engineering and Electronics, 2014, 36(7): 1238-1242.

Simulation analysis of electromagnetic characteristics of copper-based composite quadrupole orbit

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