| 考虑轴颈偏斜时滑动轴承的动力特性 |
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| 引用本文： | 俞昊旻,M·L·亚当斯. 考虑轴颈偏斜时滑动轴承的动力特性[J]. 东华大学学报(自然科学版), 1990, 0(1) |
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| 作者姓名： | 俞昊旻 M·L·亚当斯 |
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| 作者单位： | 中国纺织大学基础部，美国凯司大学机械和航天工程系 |
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| 摘 要： | 本文建立了同时考虑轴颈径向位移和歪斜时的滑动轴承动力学模型.对于这种模型,油膜力将扩展为四个广义力分量.文章将相应的动力系数矩阵分解为对称和反对称两部分并讨论其物理性质.然后,本文推导得出该模型的正交变换矩阵,在此基础上导得各向同性的动力系数矩阵表达式,并讨论了诸元素的物理意义.文章最后引入动力系数椭圆的概念以分析非对称动力系数矩阵的变换性质.
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| 关 键 词： | 滑动轴承 动力特性 偏斜 刚度矩阵 阻尼矩阵 惯性矩阵 |
THE DYNAMIC PROPERTIES OF JOURNAL BEARINGS WHEN MISALIGNMENT MOTION IS TAKEN INTO ACCOUNT |
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| Yu Haomin China Textile UniversityAdams,M. L. Case Western Reserve University,U.S.A.. THE DYNAMIC PROPERTIES OF JOURNAL BEARINGS WHEN MISALIGNMENT MOTION IS TAKEN INTO ACCOUNT[J]. Journal of Donghua University, 1990, 0(1) |
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| Authors: | Yu Haomin China Textile UniversityAdams M. L. Case Western Reserve University U.S.A. |
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| Abstract: | In this paper the dynamic model of journal bearing is presented which simultaneously includes both radial and misalignment motions. For this model the interactive force is decomposed into four generalized force components. Specifically, the non-symmetric dynamic coefficient matrices are first decomposed into symmetric and skew symmetric parts and the physical significance of each part is discussed. Secondly, the orthogonal transformation relationships for this model are derived and the isotropic model is obtained by using these relationships. Finally, the concept of the rotordynamic coefficient ellipse is introduced to analyze the transformation property for the non-symmetric dynamic coefficient matrices. |
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| Keywords: | dynamic property stiffness matrix damping matrix mass matrix journal bearing misalignment |
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