基于盘式Halbach永磁阵列的重力平衡装置电磁力计算

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Abstract A new type of electromagnetic gravity balance device, based on the discal Halbach permanent magnet array, is presented in this paper, to achieve the non-contact free motion of spacecraft in vacuum. In order to calculate the force created by this device, the discal array can be regarded as the integral of linear array, with different pole pitches. Magnetic vector potentials differential equations, based on linear array, are built, and the expression of the electromagnet force is produced by solving this equation system. Integrating this expression, along the radial direction, the formula of the force created by the PM disk can be work out. Comparing the results of analysis and finite element method, built by ANSYS, it shows that, the relative error is 4.39%.

Key words： Electromagnetic gravity balance discal array Halbach array analytic calculation electromagnetic field

Received: 11 September 2013 Published: 05 November 2014

PACS:

TM154.1

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	Chen Yin
	Zhang Kunlun
	Hu Qiaolin

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Chen Yin,Zhang Kunlun,Hu Qiaolin. Calculating Electromagnetic Force Created by Gravity Balance Device Based on Discal Halbach Permanent Magnet Array[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 36-42.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I5/36

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