本文在简要地介绍和推导考虑分布回转效应和具有分布弹性支承之等截面轴段弹性曲线微分方程及其解的基础上,导得以广义克雷洛夫函数表达的考虑分布回转效应和具有分布弹性支承之等截面轴段的传递矩阵,用于复合回转系统的动力分析,有效而方便. 最后以国产新型精纺锭子作为算例,在电算机上算得前三阶临界转速,并将其与其他算法及实测结果作比较,结果相当接近. In this paper, based on the brief introduction and derivation of the differential equations of elastic curve and the solution of equiaxed section with equal distribution of elastic support, the generalized Krylovov function is adopted to consider the distributional rotation effect and the distribution elasticity Which is used to analyze the dynamic analysis of the composite rotary system effectively and conveniently.At last, a new domestic spinning spindle is taken as an example to calculate the first three critical speeds on the computer and compare it with other The algorithm and the measured results are compared, the results are quite close.