The Influence of Coupling Misalignment on Dynamic Characteristics of Helical Gear System

The shaft misalignment usually causes the severe vibration of rotating machine.In this paper, a three-dimensional dynamic model of a coupled gear-rotor system is developed to simulate this phenomenon.The numerical simulation of the dynamic characteristics is performed to analyze the effects of both internal gear meshing and external shaft misalignment related dynamic excitations on the gearbox transmission response.This study provides useful theoretical guideline to the helical gear system design.