Investigations on a Three-dimensional Model of the Moving-coil Linear Motor Applied in the Space-borne Micro Compressor

2018 2nd International Conference on Aerospace Technology, Communications and Energy Systems (ATCES 2018)

航空航天工程;无线电电子学;能源学

Zhao, Y.B.^1,2 ; Ding, D.^1,2 ; Mao, X.C.^1,2

Shanghai Institute of Measurement and Testing Technology, Shanghai

201203, China^1

Shanghai Key Laboratory of Online Test and Control Technology, Shanghai

201203, China^2

关键词: Key dimensions;    Linear compressors;    Magnetostatic field;    Moving coils;    Pulse tube cryocoolers;    Simulated results;    Space-borne;    Three-dimensional model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/449/1/012030/pdf
DOI  :  10.1088/1757-899X/449/1/012030

学科分类：航空航天科学

来源: IOP

【 摘 要 】

In order to optimize the magnetic circuits of the linear motor applied in the space-borne pulse tube cryocooler, a three-dimensional magnetostatic field model of the moving-coil linear motor in the micro compressor is established. The effects of several key dimensions on the distributions of the magnetic flux density inside the air gap are simulated and discussed by finite element method. The simulated results show that the magnetic flux density decreases with the increase of both width and thickness of air gap. According to the analysis, it will greatly facilitate the design, fabrication and future practical applications of the micro moving-coil linear compressor.