船用螺旋桨尾轴承的巨大边缘载荷导致轴承局部比压过大，是异常摩擦噪声产生的主要原因之一。Halbach永磁阵列作为吸引单元和卸载组件可通过吸引转轴以降低传统水润滑橡胶轴承橡胶轴瓦的比压。本文提出一种具有Halbach永磁阵列的磁复合型水润滑橡胶轴承，通过理论分析建立Halbach永磁阵列的磁场解析模型和吸引力模型，使用多物理场仿真软件COMSOL Multiphyscis对Halbach磁复合型轴承进行静态性能分析。结果表明：Halbach阵列的模块数与气隙磁场的频率成正比，磁环弧度与转轴所受水平差分力成正比；在均匀载荷、尾端偏载作用下，磁复合型轴承橡胶轴瓦的表面形变和接触应力均显著小于无磁场的水润滑橡胶轴承轴瓦的表面形变和接触应力。
The huge edge load of the marine propeller tail bearing leads to excessive local specific pressure of the bearing, which is a possible cause of abnormal noise. Halbach permanent magnet array as a suction unit and unloading component can reduce the specific pressure of the traditional water-lubricated rubber bearing rubber bush by attracting the rotating shaft. This paper proposes a magnetic composite water-lubricated rubber bearing with Halbach permanent magnet array. Through theoretical analysis, the magnetic field analytical model and attractive force model of the Halbach permanent magnet array are established. Static performance analysis. The results show that the number of modules in the Halbach array is proportional to the frequency of the air gap magnetic field, and the arc of the magnetic ring is proportional to the horizontal differential force on the shaft, under uniform load and end eccentric load, the surface deformation of the magnetic composite bearing rubber bearing and the contact stress is significantly smaller than the surface deformation and contact stress of the water-lubricated rubber bearing bush without magnetic field.
2022,44(17): 33-39 收稿日期：2021-08-05
DOI：10.3404/j.issn.1672-7649.2022.17.007
分类号：U664.21
作者简介：李少楠(1997 – )，男，硕士研究生，研究方向为振动与噪声控制
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