A study on the performance of a new type axial magnetic-gas bearing

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (16) : 45-52.

CHEN Licheng，XIE Zhenyu，WU Yan，HAO Jiansheng

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Abstract

With the combination of spiral groove gas bearing (SGGB) and active magnetic bearing, a rotor system test-bed of axial magnetic-gas bearing was built.Through simulation analysis, the effects of structural parameters of the SGGB on the bearing capacity were studied, such as groove depth, groove number, groove width ratio, groove end radius ratio and spiral angle.Through the high-speed rotation test, the actual bearing capacity of the SGGB and the dynamic performance of the system were studied.Through the drop test, the feasibility of the SGGB as axial protection bearing was verified.The research results show that the SGGB can improve the dynamic performance of the system and can reduce the damage caused by the direct impact of the rotor when the axial magnetic bearing fails.

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magnetic bearing / gas bearing / magnetic-gas bearing

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CHEN Licheng，XIE Zhenyu，WU Yan，HAO Jiansheng. A study on the performance of a new type axial magnetic-gas bearing[J]. Journal of Vibration and Shock, 2021, 40(16): 45-52

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