The Research Of Gears Torsional Mesh Stiffness

In the power transmission systems, the gear is one of the most important components. The meshing transmission error of the gear is one of the main causes which creates noise and vibration of the gear power transmission system. The change of the gear torsional mesh stiffness intensifies the gear transmission error, specially when the gear included the flaw, in the situation its torsional mesh stiffness to reduce, therefore caused the noise and the vibration of the system is bigger. Studing the torsional mesh stiffness of the gear has a more profound significance, to understand the causes of the transmission error of the gear and the noise of the system and diagnose the gear fault.This article reviewed in recent decades researchers had established different application purposes mathematical and finite element gear models. First The researcher used the massively without-defects mathematical model: Single degree of freedom model, two degrees of freedom model, multi-degrees of freedom model. And lately establishes the with-defects mathematical model: The dynamic model of gear including the friction force, the dynamic model of gear including wear, the dynamic model of gear including spalls. According to different research purposes, the gear model divides into: model with tooth compliance; model for Gear dynamic; models with a whole gear. These...