双盘柔性转子的动挠度曲线是一条随转速变化的空间曲线,而且转子在任意转速下转动时,其振动曲线是转子各阶主振型分量的叠加,故按振型分理的原理和方法进行平衡,能消除由不平衡离心惯性力的各阶振型分量产生的振动,从而能达到良好的平衡效果。整机平衡的方法和步骤如下:在两只轴承上分别装上传感器,并输入测振仪和相位仪,分别测得两端轴承处的振幅和相位。利用计算的方法,求得一阶和二阶振型曲线,然后按振型分理平衡的原理,确定低速(在一阶临界转速附近)和高速(工作转速)下,两只转子的平衡校正面上的加重比例,再由实测方法确定低速和高速下 The dynamic deflection curve of a double-disk flexible rotor is a space curve that varies with the rotation speed. When the rotor rotates at any rotation speed, the vibration curve of the double-disk flexible rotor is the superposition of the main vibration modes of the rotor. Therefore, according to the principle and method of vibration mode separation The balance can eliminate the vibration caused by the unbalanced centrifugal inertial force of each mode component so that a good balance effect can be achieved. The method and procedure of balancing the whole machine are as follows: Put the sensor on the two bearings and input the vibrometer and the phase meter respectively to measure the amplitude and phase of the bearing at both ends respectively. Using the method of calculation, the first-order and second-order mode shapes are obtained. Then according to the principle of sub-balanced mode of vibration, the balance of two rotors is determined at low speed (near the first critical speed) and high speed (working speed) Positive proportion of the increase, and then measured by the method to determine low speed and high speed