裂纹对齿轮副疲劳寿命的影响研究  

Study on Effect of Crack on Fatigue Life of Gear Pair

作　　者：陈元元 刘广璞[1] 黄晋英[1] 王成 Chen Yuanyuan;Liu Guangpu;Huang Jinying;Wang Cheng(Mechanical Engineering Institute,North University of China,Taiyuan 030051,China;A Military Agency of Army Equipment in Beijing,Beijing 100000,China)

机构地区：[1]中北大学机械工程学院,太原030051 [2]陆装驻北京地区某军代室,北京100000

出　　处：《煤矿机械》2022年第3期23-26,共4页Coal Mine Machinery

摘　　要：以现有实验室行星齿轮箱为研究对象,建立了行星轮和裂纹在不同位置下的行星轮与齿轮轴啮合的三维模型,通过ANSYS Workbench完成了模型的瞬态动力学分析。并利用Ncode疲劳分析软件以Miner线性累计损伤理论和名义应力法为依据对齿轮副进行了疲劳寿命分析。结果表明:裂纹的存在对于齿轮传动受力及齿轮损伤与寿命都有比较大的影响;同等条件下的数种齿轮裂纹工况中,齿轮根部左侧裂纹对齿轮副疲劳寿命的影响更大。Taking the planetary gearbox in the existing laboratory as the research object,a three-dimensional model of the planetary gear and the planetary gear meshing with the gear shaft with cracks at different positions were established,and the transient dynamics analysis of the model was completed by ANSYS Workbench.The Ncode fatigue analysis software was used to analyze the fatigue life of the gear pair based on the Miner linear cumulative damage theory and the nominal stress method.The results show that the existence of cracks has a great influence on the force,damage and life of gear transmission.Under the same condition,the left side crack of gear root has more influence on the fatigue life of gear pair.

关 键 词：齿轮传动 疲劳寿命 Ncode Miner损伤法则 

分 类 号：TH132.41[机械工程—机械制造及自动化]