【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。更多还原

【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.更多还原