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13 October 2006 Magnetic field calculation and measurement of active magnetic bearings
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Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62803U (2006) https://doi.org/10.1117/12.716347
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China
Abstract
Magnetic Bearings are typical devices in which electric energy and mechanical energy convert mutually. Magnetic Field indicates the relationship between 2 of the most important parameters in a magnetic bearing - current and force. This paper presents calculation and measurement of the magnetic field distribution of a self-designed magnetic bearing. Firstly, the static Maxwell's equations of the magnetic bearing are presented and a Finite Element Analysis (FEA) is found to solve the equations and get post-process results by means of ANSYS software. Secondly, to confirm the calculation results a Lakeshore460 3-channel Gaussmeter is used to measure the magnetic flux density of the magnetic bearing in X, Y, Z directions accurately. According to the measurement data the author constructs a 3D magnetic field distribution digital model by means of MATLAB software. Thirdly, the calculation results and the measurement data are compared and analyzed; the comparing result indicates that the calculation results are consistent with the measurement data in allowable dimension variation, which means that the FEA calculation method of the magnetic bearing has high precision. Finally, it is concluded that the magnetic field calculation and measurement can accurately reflect the real magnetic distribution in the magnetic bearing and the result can guide the design and analysis of the magnetic bearing effectively.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guoping Ding, Zude Zhou, and Yefa Hu "Magnetic field calculation and measurement of active magnetic bearings", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62803U (13 October 2006); https://doi.org/10.1117/12.716347
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