摘要
为了评估双圆弧齿轮在正常工作状态下的疲劳寿命,建立双圆弧齿轮三维模型,结合Workbench和Ncode,对齿轮进行动力学分析和疲劳寿命分析,以影响齿轮疲劳寿命的不同因素为变量,对双圆弧齿轮副进行动力学分析。基于动力学分析得出的齿轮应力与时间的关系,根据所选取材料的S-N曲线,利用Ncode疲劳分析软件,对双圆弧齿轮副进行疲劳寿命分析,得出双圆弧齿轮在不同接触区域的疲劳寿命云图和疲劳寿命次数。仿真结果显示,在静载动力学与瞬态动力学下,双圆弧齿轮最大接触应力区域与最小疲劳寿命区域相同,同时在不同的疲劳寿命因素影响下改变双圆弧齿轮副从动轮的扭矩,齿轮的疲劳寿命变化较大,可为双圆弧齿轮抗疲劳优化提供理论指导。
In order to evaluate the fatigue life of the double circular arc gear under normal working conditions,a 3D model of the double circular arc gear was established in this paper.The dynamics analysis and fatigue life analysis of the gear were carried out by combining Workbench and Ncode.The dynamics analysis of the double circular arc gear pair was carried out by taking different factors affecting the fatigue life of the gear as variables.Based on the relationship between the gear stress and time obtained from the dynamic analysis,and according to the S-N curve of the selected material,the fatigue life of the double circular arc gear pair was analyzed by using Ncode fatigue analysis software,and the fatigue life cloud map and the number of fatigue life of the double circular arc gear in different contact areas were obtained.According to the simulation results,under static and transient dynamics,the maximum contact stress region and minimum fatigue life region of double circular arc gear are the same,and under the influence of different fatigue life factors,the fatigue life of double circular arc gear pair changes greatly when the torque of the driving wheel is changed.This research can provide theoretical guidance for anti-fatigue optimization of double arc gear.
作者
唐伟
袁新梅
占凯
杨志超
TANG Wei;YUAN Xinmei;ZHAN Kai;YANG Zhichao(Yangtze University,Institute of Strength and Vibration of Mechanical Structures,Jingzhou 434023)
出处
《现代制造技术与装备》
2022年第10期49-52,共4页
Modern Manufacturing Technology and Equipment
