| 椭圆轴承-转子系统失稳运动数值分析 |
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| 引用本文： | 孟志强,袁小阳,朱均. 椭圆轴承-转子系统失稳运动数值分析[J]. 机械强度, 2000, 22(2): 97-99,85 |
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| 作者姓名： | 孟志强 袁小阳 朱均 |
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| 作者单位： | 西安交通大学,润滑理论与轴承研究所,西安,710049 |
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| 基金项目： | 国家九五攀登项目“大型机电系统中若干动力学关键拄术的研究”资助(PD9521908)。 |
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| 摘 要： | 滑动轴承油膜力是一种强非线性作用力，滑动轴承转子系统是一种典型的非线性动力系统，传统的线性方法无法计算系统失稳后的运动。文中给出用数值积分瞬态模拟对轴承－转子系统非线性振动进行计算分析的方法，并以椭圆滑动轴承－刚性转子系统为例，对系统失稳后的运动状态进行了计算和分析。
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| 关 键 词： | 非线性 椭圆轴承 失稳运动 转子 数值分析 |
NUMERICAL ANALYSIS OF UNSTABLE MOTION OF ELLIPTIC BEARING-ROTOR SYSTEM |
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| MENG Zhiqiang,YUAN Xiaoyang,ZHU Jun. NUMERICAL ANALYSIS OF UNSTABLE MOTION OF ELLIPTIC BEARING-ROTOR SYSTEM[J]. Journal of Mechanical Strength, 2000, 22(2): 97-99,85 |
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| Authors: | MENG Zhiqiang YUAN Xiaoyang ZHU Jun |
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| Affiliation: | MENG Zhiqiang,YUAN Xiaoyang,ZHU Jun;(Theory of Lubrication and Bearing Institute, Xi'an Jiaotong University, Xi'an 710049, China) |
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| Abstract: | The oil film force produced by hydrodynamic journal bearing is a kind of highly nonlinear force. The hydrodynamic bearing-rotor system is a typical nonlinear dynamic system. Using linear stability theory, the motion after loss of stability can not be obtained. In this paper, a method of transient numerical simulation to simulate and analyze the nonlinear vibration of rotor-beating system is presented. Using this method, the motion after loss of stability of an elliptic bearing-rigid rotor system is calculated and analyzed in detail. |
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| Keywords: | nonlinear elliptic bearing unstable motion |
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