科技创新与应用2024，Vol.14Issue(1)：1-5,5.DOI:10.19981/j.CN23-1581/G3.2024.01.001
齿根裂纹扩展对轮齿时变啮合刚度变化关系的分析
摘要
Abstract
In order to solve the problem that there is a large deviation between the theoretical value and the actual value of tooth root crack propagation and time-varying meshing stiffness,this paper optimizes the traditional time-varying meshing stiffness model based on energy method,so that the variation law of theoretical time-varying meshing stiffness is close to the actual situation.On the basis of the traditional theoretical model of time-varying meshing stiffness,the traditional theoretical stiffness model is improved by considering the Hertz contact stiffness,radial compression stiffness,bending stiffness and shear stiffness of gear teeth,as well as the flexible deformation of gear body.Then the energy method is used to verify the change law of time-varying meshing stiffness of gear teeth under the three different states of healthy gear teeth,root crack propagation degree and crack propagation angle.The results of research show that,after the improved theoretical stiffness model,the consistency of the variation law of time-varying meshing stiffness is good.Moreover,it is concluded that the value of time-varying meshing stiffness decreases with the increase of the severity of tooth root crack and increases with the increase of tooth root crack propagation angle.关键词
齿根裂纹/时变啮合刚度/裂纹扩展程度/裂纹扩展方向/能量法Key words
tooth root crack/time-varying meshing stiffness/crack propagation degree/crack propagation direction/energy method分类
机械制造引用本文复制引用
周新涛,张文亭,吴玉文,周锦涛..齿根裂纹扩展对轮齿时变啮合刚度变化关系的分析[J].科技创新与应用,2024,14(1):1-5,5.基金项目
陕西省教育厅科研计划项目(21JK0503) （21JK0503）
陕西工业职业技术学院引进高层次人才科研启动经费(2020-9) （2020-9）
