基于ANSYS的直齿圆柱齿轮摩擦特性分析  

Analysis of the Frictional Characteristic of Spur Gear by ANSYS

作　　者：张婉莹[1] 任靖日[1] 

机构地区：[1]延边大学工学院,吉林延吉133002

出　　处：《润滑与密封》2014年第6期62-65,71,共5页Lubrication Engineering

基　　金：国家自然科学基金项目(51265050)

摘　　要：基于CATIA平台，通过参数化方法建立渐开线直齿圆柱齿轮模型，以IGES文件格式导入ANSYS，对齿轮齿廓进行摩擦特性分析。在只改变摩擦因数的情况下，分析齿轮啮合过程中轮齿受到的接触应力、摩擦力和接触压力的变化规律。结果表明：当摩擦因数小于0．3时，随着摩擦因数的增加，接触应力、摩擦力以及接触压力都明显增加；当摩擦因数在0．3-0．8之间时，接触应力、摩擦力以及接触压力随摩擦因数的增加而变化的幅度变小，但是总体趋势是增加的。而齿轮接触应力、摩擦力和接触压力的增加都会加速轮齿失效和缩短齿轮疲劳寿命，因此，减小摩擦因数是提高齿轮抗点蚀能力和延长疲劳寿命的一种可行方法。A involute spur gear model was constructed by parameter method on CATIA platform, and the frictional characteristic ofgear tooth profile was analyzed by transmitting the model to ANSYS software by IGES file format. The variation law of gear contact stressand friction and contact pressure in gear meshing process was investigated by only changing the friction coefficient. The results show that,when the friction coefficient is less than 0. 3, the gear contact stress, friction and contact pressure are increased along with the increasingof friction coefficient, and the increase becomes smaller when the friction coefficient is in between 0. 3 to 0. 8. The increase of gear contactstress, friction and contact pressure will accelerate the failure of gear tooth and shorten the fatigue life, therefore, it is a feasible methodto improve pitting corrosion resistance and extend fatigue life of gear by reducing friction coefficient.

关 键 词：渐开线直齿圆柱齿轮 摩擦特性 摩擦因数 接触应力 

分 类 号：TH117.1[机械工程—机械设计及理论]