Axial force evaluation in permanent magnet thrust bearings subject to demagnetization and temperature effects

Van Beneden, Maxence;Kluyskens, Virginie;Dehez, Bruno
(2018) International Symposium on Magnetic Bearings (ISMB16) — Location: Beijing International Convention Center (www.bicc.com.cn) in Beijing, China (13.August.2018)

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Abstract
This article presents a 2D axisymmetric finite element model allowing to evaluate the axial force developed by a permanent magnet thrust bearings, including demagnetization and temperature effects. For this purpose, a linearized B-H curve is included in the model, with coefficients depending on the temperature. The axial force evaluation, as a function of the operating temperature is validated experimentally on a test bench. Finally, based on this model, the performance of thrust bearings using either SmCo or NdFeB are compared.
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Van Beneden, M., Kluyskens, V., & Dehez, B. (2018). Axial force evaluation in permanent magnet thrust bearings subject to demagnetization and temperature effects. International Symposium on Magnetic Bearings (ISMB16), Beijing International Convention Center (www.bicc.com.cn) in Beijing, China. https://hdl.handle.net/2078.5/51067