Research on Characteristic of Electromagnetic Force of Magnetic Suspension Device with Large Air-Gap

Abstract:

The electromagnetic force is an important characteristic parameter for magnetic suspension device, and magnetic circuit method is often used to calculate the electromagnetic force in engineering. However, it is not accurate to use magnetic circuit method to calculate electromagnetic force for magnetic suspension devices with large air-gap. In this paper three kinds of methods are used to study on the characteristic of electromagnetic force of magnetic suspension device with large air-gap: experimental, ANSYS calculation and magnetic circuit calculation method. Investigate the property and the variation regular pattern of electromagnetic force. Analyze the error distribution of magnetic circuit calculation method and find out the causes of errors, and then deduce a modified magnetic circuit formula to calculate the electromagnetic force of magnetic suspension device with large air-gap.

• Periodical: Applied Mechanics and Materials (Volumes 401-403)
• Pages: 239-244
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.401-403.239
• Online since: September 2013
• Authors: Xiao Guang Wang, Qian Liu, Yi Jing Zhang, Hao Hui Chen
• Keywords: Electromagnetic Force, Error, Magnetic Suspension Device with Large Air-Gap, Mechanical Property

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