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Study on the support stiffness characteristics of a disc rotor permanent magnetic levitation bearing
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Hongming WANG1, Liangliang CHEN2, Kejian JIANG1
Journal of Vibration Engineering | 2025, 38(7) : 1496 - 1502
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Journal of Vibration Engineering | 2025, 38(7): 1496-1502
Study on the support stiffness characteristics of a disc rotor permanent magnetic levitation bearing
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Hongming WANG1, Liangliang CHEN2, Kejian JIANG1
Affiliations
  • 1.School of Information Science and Engineering，Zhejiang Sci-tech University，Hangzhou 310018，China
  • 2.College of Information Engineering，Nanchang Hangkong University，Nanchang 330063，China
Published: 2025-07-10 doi: 10.16385/j.cnki.issn.1004-4523.202312036
Outline
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Research on magnetically levitated rotors has been heavily influenced by studies on slender shaft magnetic levitated rotors. In the study on a certain magnetically levitated flat rotor for a centrifugal pump structure，both experiments and finite element analysis revealed that the support characteristics of the radial permanent magnetic bearings，with the same dual-ring structure，exhibited the significant differences from the known experience when applied to flat rotors. The translational stiffness and torsional stiffness showed substantial variations. This paper analyzes the variations in translational and torsional stiffness of permanent magnetic radial bearings for flat rotors based on changes in the bearing’s structural dimensions. Based on the analysis，a flat rotor magnetic levitation structure is proposed，which can increase and adjust the torsional stiffness of the permanent magnetic bearings，while also allowing for a rational ratio between translational and torsional stiffness. A finite element analysis is used to identify the structural conditions that yield maximum translational and rotational stiffness. The effectiveness of the proposed methodology is subsequently validated.

magnetic levitation bearing  /  permanent magnetic bearing  /  length-diameter ratio  /  translational stiffness  /  rotational stiffness
Hongming WANG, Liangliang CHEN, Kejian JIANG. Study on the support stiffness characteristics of a disc rotor permanent magnetic levitation bearing[J]. Journal of Vibration Engineering, 2025 , 38 (7) : 1496 -1502 . DOI: 10.16385/j.cnki.issn.1004-4523.202312036
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Year 2025 volume 38 Issue 7
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.202312036
  • Receive Date：2023-12-16
  • Online Date：2026-02-09
  • Published：2025-07-10
Article Data
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History
  • Received：2023-12-16
  • Revised：2024-04-09
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Affiliations
    1.School of Information Science and Engineering，Zhejiang Sci-tech University，Hangzhou 310018，China
    2.College of Information Engineering，Nanchang Hangkong University，Nanchang 330063，China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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