| 带有支座松动故障的转子-轴承系统碰摩的可靠性分析 |
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| 引用本文： | 苏长青,张义民,赵群超.带有支座松动故障的转子-轴承系统碰摩的可靠性分析[J].工程设计学报,2008,15(5):347-350. |
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| 作者姓名： | 苏长青 张义民 赵群超 |
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| 作者单位： | 东北大学机械工程与自动化学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家高科技研究发展计划资助项目(2007AA04Z442); 国家自然科学基金资助项目(50535010) |
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| 摘 要： | 针对存在支座松动和碰摩的耦合故障转子-轴承系统,采用短轴承非稳态油膜模型和线性碰摩模型建立转子-轴承系统的动力学方程,应用矩阵微分理论、二阶矩技术、矩阵摄动理论和Kronecker代数方法系统地研究了此耦合故障转子-轴承系统的随机响应问题.应用四阶矩技术和Edgeworth级数展开,对耦合故障转子-轴承系统碰摩的可靠性进行了研究,并求出了数值解,给出了可靠性曲线.
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| 关 键 词： | 支座松动 碰摩 随机响应 可靠性分析 |
Reliability analysis for rubbing in rotor-bearing system with pedestal looseness |
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| SU Chang-qing,ZHANG Yi-min,ZHAO Qun-chao.Reliability analysis for rubbing in rotor-bearing system with pedestal looseness[J].Journal of Engineering Design,2008,15(5):347-350. |
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| Authors: | SU Chang-qing ZHANG Yi-min ZHAO Qun-chao |
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| Affiliation: | School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China |
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| Abstract: | The dynamic equations of a rotor-bearing system with pedestal looseness and rubbing were established on the basis of the nonlinear oil film force and linear rubbing model. The random response of rotor-bearing system was systematically investigated by matrix differential theory, second order moment technique, matrix perturbation and Kronecker algebra. Moreover, research on the reliability for rubbing in rotor-bearing system was conducted by statistical fourth moment method and Edgeworth series technique. Num... |
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| Keywords: | pedestal loosen rubbing random response reliability analysis |
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