Research on speed fluctuation measurement model and simulation of rolling mill drive system

rolling mills;  Speed fluctuations;  measurement model;  Decomposition algorithm

In order to measure the vibration caused by random fluctuation speed superimposed on the constant speed, the dynamic characteristics of the rolling mill drive system were studied by the speed fluctuation of the elastic rotating shaft and the motor shaft, and the measurement model of the instantaneous speed of the rolling mill drive system was established. The series decoupling method is used to convert the nonlinear motion differential equation into an algebraic equation to obtain a fast decomposition algebraic algorithm for speed fluctuations, and finally the correctness and feasibility of the algorithm are verified by the experiment of simulating the rolling process on the torsional vibration experimental platform.