| 转子-定子系统碰摩可靠性灵敏度研究 |
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| 引用本文： | 张义民,刘巧伶,李鹤,闻邦椿. 转子-定子系统碰摩可靠性灵敏度研究[J]. 航空动力学报, 2006, 21(5): 848-853 |
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| 作者姓名： | 张义民 刘巧伶 李鹤 闻邦椿 |
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| 作者单位： | 东北大学,机械工程与自动化学院,沈阳,110004;吉林大学,机械科学与工程学院,长春,130025 |
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| 基金项目： | 国家自然科学基金 , 辽宁省自然科学基金 |
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| 摘 要： | 针对仅考虑质量偏心的Jeffcott转子-定子系统碰摩的动力学方程,进行了旋转机械转子-定子系统的碰摩可靠性灵敏度分析,应用Kronecker代数,矩阵微分理论,四阶矩技术,矩阵摄动理论,概率统计方法,可靠性理论和灵敏度技术系统地发展了转子-定子系统碰摩的可靠性灵敏度分析方法,研究了转轴刚度和阻尼、定子刚度和阻尼、偏心距和定子径向刚度对可靠度灵敏度的影响,并给出了数值分析解.
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| 关 键 词： | 航空、航天推进系统 转子-定子系统 碰摩 可靠性灵敏度 |
| 文章编号： | 1000-8055(2006)05-0848-06 |
| 收稿时间： | 2005-08-27 |
| 修稿时间： | 2005-08-27 |
Reliability sensitivity investigation of impact-rub for rotor-stator systems |
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| ZHANG Yi-min,LIU Qiao-ling,LI He and WEN Bang-chun. Reliability sensitivity investigation of impact-rub for rotor-stator systems[J]. Journal of Aerospace Power, 2006, 21(5): 848-853 |
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| Authors: | ZHANG Yi-min LIU Qiao-ling LI He WEN Bang-chun |
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| Affiliation: | School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China;Institute of Mechanical Science and Engineering, Jilin University, Changchun 130025, China;School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China;School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China |
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| Abstract: | On the basis of the impact-rub dynamics equations of Jeffcott rotor-stator systems with imbalance,the reliability sensitivity investigation of rotor-stator systems of rotating machinery under impact-rub is presented.Techniques from Kronecker algebra,matrix calculus,fourth moment analysis,probabilistic perturbations,reliability theory and sensitivity technique are employed to systematically develop the mathematical and numerical expressions for reliability sensitivity analysis of rotor-stator systems.The effects of shaft stiffness and damping, stator stiffness and damping,radial clearance and stator radial stiffness on reliability sensitivity are studied and discussed.The numerical results are obtained. |
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| Keywords: | aerospace propulsion system rotors-stator Impact-rub reliability sensitivity |
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