Simulation and parametric optimal design of active radial magnetic fluid bearing Online publication date: Mon, 18-Dec-2023
by Liwen Chen; Jianhua Zhao; Xiaochen Wu; Jisheng Zhao; Jia Deng
International Journal of Modelling, Identification and Control (IJMIC), Vol. 44, No. 1, 2024
Abstract: This paper designs a magnetic-fluid bearing with electromagnetic-static pressure dual support, and designs the structural parameters of the radial magnetic-hydraulic bearing. Based on the optimal bearing capacity, MATLAB is used to optimise the bearing cavity diameter and oil film thickness, and it is concluded that the bearing capacity is better when the diameter of the bearing cavity is 10 mm and the thickness of the oil film is 30 μm. Then, the fluid-solid-thermal coupling analysis of the magnetic fluid bearing was carried out, using Ansys software analysed the influence of structural parameters on the bearing temperature rising and thermal deformation, and it was concluded that the thermal deformation of the magnetic fluid bearing was the smallest when the oil film thickness was 30 μm and the axial length of the stator was 45 mm. These lay a theoretical basis for the structural optimisation design of the bearing.
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