摘要：根据转子系统的固有频率与激振频率差的绝对值不超过规定值的关系准则,定义转子系统共振问题的可靠性模式和系统的可靠度,提出避免转子共振的频率可靠性分析方法,应用随机摄动技术、可靠性理论和灵敏度技术,对转子系统共振问题的可靠性灵敏度分析方法进行了研究，并通过数值算例验证了本文方法的有效性。

Abstract The relation criterion of difference not beyond special value of the natural frequency and driving frequency is proposed. The reliability mode and the safety probability of the rotor system are defined as series mode, and the frequency reliability analysis method for avoiding the resonant is carried out. The reliability sensitivity analysis method for resonant problem of the rotor systems is studied by using the random perturbation technique, reliability theory and sensitivity technique. A numerical example has demonstrated that the proposed method is efficient and accurate.