本文运用普劳尔方法,结合我厂校验转子的实例,较为详细地阐述了此方法的基本原理以及介绍采用此方法算题的全部过程。本程序是一个由“自由端——自由端”并计入转盘回转力矩影响的计算程序。它不仅适用于求解两支承转子的各阶临界转速及振型,也适用于求多支点,多跨主轴的各阶临界转速及其相应振型。 In this paper, the use of Puluoer method, combined with my factory calibration rotor example, a more detailed description of the basic principles of this method as well as the introduction of this method to calculate the entire process. This program is a “free end - free end” and included in the turntable slew torque impact calculation program. It is not only suitable for solving each critical speed and vibration mode of two supported rotors, but also applicable to the critical speeds and their corresponding vibration modes of multi-span and multi-span spindles.