非均荷载下齿向应力与轮齿变形的数值模拟

Abstract

Based on the considerable effect to numerical simulation of exact modeling,APDL-Matlab parametric modeling programming is used.Exactly gear teeth model is built by tooth profile curve derivation.A simulation method that contact load is linear before running-in and parabolic after running-in is supposed.Then,the trace stresses curves are deduced.The tooth root maximum stress of facewidth direction and varication rule of tooth deformation on line of action are contrasted and studied under non-uniform distribution load,linear distribution load and parabolic distribution load.The end stiffness effect and the continuity of tooth root stress and tooth deformation are validated.Under non-uniform distribution load,tooth root stress and tooth deformation are simulated and the results show that maximum tooth root stress increases but the tooth root maximum deformation decrease,due to non-uniform distribution trace load and end effect.The conclusions have some theory value on tooth profile optimal design and root trace load distribution improvement.