转子-定子系统碰摩可靠性灵敏度研究

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

1.
东北大学机械工程与自动化学院, 沈阳 110004
2.
吉林大学机械科学与工程学院, 长春 130025

基金项目: 国家自然科学基金重点项目(批准号:50535010);辽宁省自然科学基金资助

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出版历程
- 收稿日期: 2005-08-27
- 修回日期: 2006-12-07
- 刊出日期: 2006-10-28

Reliability sensitivity investigation of impact-rub for rotor-stator systems

1.
School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
2.
Institute of Mechanical Science and Engineering, Jilin University, Changchun 130025, China

摘要

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。
- 航空、航天推进系统 /
- 转子-定子系统 /
- 碰摩 /
- 可靠性灵敏度
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.
- aerospace propulsion system /
- rotors-stator /
- Impact-rub /
- reliability sensitivity

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参考文献(17)

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