| 基于分子电流法轴向永磁轴承轴向刚度的分析 |
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| 引用本文： | 王洪昌,蒋书运,梁玉飞. 基于分子电流法轴向永磁轴承轴向刚度的分析[J]. 机械工程学报, 2009, 45(5). DOI: 10.3901/JME.2009.05.102 |
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| 作者姓名： | 王洪昌 蒋书运 梁玉飞 |
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| 作者单位： | 东南大学机械学院,南京,210096;东南大学机械学院,南京,210096;东南大学机械学院,南京,210096 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，江苏省高技术研究计划，国家自然科学基金 |
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| 摘 要： | 轴向刚度分析是永磁轴承设计过程中的重要环节,现有的几类模型计算结果与实测结果存在一定的误差.使用基于分子电流法分析计算轴向永磁轴承的轴向刚度时,由于分子电流法在计算轴向力时需要求解四重积分,计算周期长,甚至不能获得解析解,因此采用蒙特卡罗算法来近似计算轴承的轴向力,使求解过程简单化.通过与有限元法数值解进行比较表明,分子电流法建模可较准确地分析轴向永磁轴承轴向刚度,运用蒙特卡罗算法求解方程,突破了分子电流法难以工程应用的技术难题.
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| 关 键 词： | 永磁轴承 轴向刚度 分子电流法 蒙特卡罗法 有限元法 |
Analysis of Axial Stiffness of Permanent Magnet Bearings by Using the Equivalent Surface Currents Method |
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| WANG Hongchang,JIANG Shuyun,LIANG Yufei. Analysis of Axial Stiffness of Permanent Magnet Bearings by Using the Equivalent Surface Currents Method[J]. Chinese Journal of Mechanical Engineering, 2009, 45(5). DOI: 10.3901/JME.2009.05.102 |
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| Authors: | WANG Hongchang JIANG Shuyun LIANG Yufei |
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| Affiliation: | School of Mechanical Engineering;Southeast University;Nanjing 210096 |
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| Abstract: | Computation of axial stiffness of permanent magnet bearings is very important in the design process of permanent magnet bearings. There exists a certain error in the calculation results of several kinds of existing models in comparison to the measured result. The equivalent surface currents method is employed to analyze the stiffness of axial permanent magnet bearing, but the solution cannot be obtained easily for a quadruplicate integral. Monte Carlo method is used to solve the equation to simplify the cal... |
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