为了在旋转机械故障诊断中确定转子碰摩的位置,提出了一种基于遗传算法的确定多盘转子系统碰摩位置的方法。该方法的基本思路是先建立碰摩转子系统的有限元模型,并将碰摩位置、定子刚度、定转子之间的间隙、系统的阻尼系数和定转子之间的摩擦因数等参数识别问题转化为多参数优化问题,进而利用遗传算法进行优化求解实现碰摩位置的识别。实验结果表明该方法在碰摩发生后能够有效地确定碰摩故障发生的位置。 In order to determine the position of the rotor rub in the fault diagnosis of rotating machinery, a method of determining the rubbing position of the multi-disk rotor system based on genetic algorithm is proposed. The basic idea of ​​this method is to first establish the finite element model of the rubbing rotor system and transform the identification problems of rubbing position, stator stiffness, the gap between the stator, the damping coefficient of the system and the friction coefficient between the stator and the rotor For multi-parameter optimization problems, and then the use of genetic algorithms to optimize the solution to achieve rubbing position recognition. Experimental results show that this method can effectively determine the location of rub-impact after rub-impact.