| 高速转子系统油膜涡动动力学特性及其影响因素 |
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| 引用本文： | 窦唯,吴乃军,刘占生.高速转子系统油膜涡动动力学特性及其影响因素[J].噪声与振动控制,2012,32(5):53-58. |
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| 作者姓名： | 窦唯 吴乃军 刘占生 |
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| 作者单位： | ( 1. 北京航天动力研究所， 北京 100076；2. 哈尔滨工业大学， 哈尔滨 150001 ） |
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| 摘 要： | 以某实际滑动轴承支撑下的转子轴承系统为对象，建立非线性油膜力作用下的转子轴承系统的动力学模型，应用非线性动力学理论对该系统进行动力学响应特性数值模拟，利用幅频特性曲线、分岔图、三维谱图等研究系统响应随偏心距、转速、润滑油粘度、半径间隙、轴承长度和轴颈半径等因素的变化对油膜涡动的影响规律。为工程实际中转子系统的优化设计、故障诊断、振动控制等提供参考。
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| 关 键 词： | 振动与波 旋转机械 转子-轴承系统 油膜涡动 机理 |
| 收稿时间： | 2011-11-21 |
Oil Film Whirl Dynamic Characteristics and Influence Factors in High Speed Rotor-bearing System |
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| DOU Wei,ZHANG Nan,WU Nai-jun,LIU Zhan-sheng.Oil Film Whirl Dynamic Characteristics and Influence Factors in High Speed Rotor-bearing System[J].Noise and Vibration Control,2012,32(5):53-58. |
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| Authors: | DOU Wei ZHANG Nan WU Nai-jun LIU Zhan-sheng |
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| Affiliation: | ( 1. Beijing Aerospace Propulsion Institute, Beijing 100076, China; 2. Harbin Institute of Technology, Harbin 150001, China ) |
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| Abstract: | The dynamic model of rotor-bearing system under the action of non-linear oil film force is established for a practical rotor-bearing system supported by sliding bearings. With application of nonlinear dynamics theory, system response was simulated numerically. The effects of eccentricity, speed, lubricant viscosity, radius gap, bearing length and journal radius on oil film whirl and system response were obtained by using amplitude-frequency curve, bifurcation and three-dimensional spectrum. This is of value for reference to design Optimization, fault diagnosis and vibration control of rotor system in engineering practice. |
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| Keywords: | vibration and wave rotating machinery rotor-bearing system oil-film whirl mechanism |
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