正交面齿轮副动力学仿真及疲劳寿命分析  

Dynamic Simulation and Fatigue Life Analysis of Orthogonal Face Gear Pair

作　　者：雷建波 

机构地区：[1]海军重庆局,重庆402263

出　　处：《热能动力工程》2016年第2期59-65,138,共7页Journal of Engineering for Thermal Energy and Power

基　　金：国家科技支撑计划资助项目(2013BAF01B04)

摘　　要：基于齿轮啮合原理,推导了正交面齿轮的齿面和齿根方程,借助MATLAB、Imagewear和UG软件生成了面齿轮副的实体和装配模型,利用Adams软件进行面齿轮副的刚体动力学建模及求解,得到面齿轮副的瞬态接触力;以此为疲劳分析载荷谱,结合基于GL规范计算的面齿轮材料的近似S-N曲线及静载荷作用下齿轮副的应力应变结果,在FE-SAFE中采用最大主应力法求解得到面齿轮副的疲劳寿命和安全系数,并研究了表面粗糙度和应力集中系数对其疲劳寿命的影响规律。结果表明,面齿轮副的瞬态接触力相对理论值的波动超过50%,面齿轮寿命随表面粗糙度和应力集中系数的增加而减小,粗糙度较大时疲劳寿命锐减,疲劳寿命对应力集中系数较敏感。Based on the theory of gear meshing theory,both tooth face and tooth root equations of face gear were deduced. The solid and assembly models of face gear were generated through Matlab,Imageware and UG. By constructing and solving rigid-body dynamics model in Adams program,the transient contact force of face gear pair was obtained,and used as fatigue load spectrum. Then the fatigue life and safety factor of face gear was obtained in FE-SAFE by using maximum principle stress algorithm and S-N curves of face gear calculated based on GL criterion and stress-strain of gear pair under static load. And also studied were the effects of tooth surface roughness and stress concentration factor on fatigue life of face gear. The results indicate that the fluctuation of transient contact force of face gear pair exceeds 50 percent of theoretical value,and the life of face gear extends with the decreases in tooth surface roughness and stress concentration factor. Fatigue life decreases rapidly with a larger tooth surface roughness,and is sensitive to stress concentration factor.

关 键 词：啮合原理 面齿轮副 载荷谱 疲劳寿命 

分 类 号：TH132.41[机械工程—机械制造及自动化]