基于载荷谱的汽车后桥准双曲面齿轮高周疲劳寿命评估  

High-cycling fatigue life assessment of vehicle hypoid gears based on load spectrum

作　　者：熊广林 李垚 邓月[1] 黄东 吴行 朱才朝 XIONG Guanglin;LI Yao;DENG Yue;HUANG Dong;WU Hang;ZHU Caichao(College of Mechanical&Power,China Three Gorges University,Yichang 443002,China;Department of Technology,Chongqing Tsingshan Industrial Co.,Ltd.,Chongqing 402776,China;State Key Laboratory of Mechanical Transmission for Advanced Equipment,Chongqing University,Chongqing 400044,China)

机构地区：[1]三峡大学机械与动力学院,宜昌443002 [2]重庆青山工业有限责任公司技术中心,重庆402776 [3]重庆大学高端装备机械传动全国重点实验室,重庆400044

出　　处：《机械强度》2025年第2期61-67,共7页Journal of Mechanical Strength

基　　金：湖北省自然科学基金计划项目(2023AFB066);水电机械设备设计与维护湖北省重点实验室开放基金项目(2021KJX10)。

摘　　要：针对复杂工况下汽车后桥准双曲面齿轮接触疲劳失效问题,采用雨流计数法和Goodman平均应力方程,建立轮齿接触静力学模型,提取接触齿面载荷-时间历程,编制准双曲面齿轮载荷谱;研究基于载荷谱的准双曲面齿轮高周疲劳寿命预测方法,采用有限元方法模拟轮齿在载荷作用下的啮合/接触过程,揭示疲劳损伤准则对齿轮疲劳寿命预测的影响机制。所提方法对指导汽车后桥准双曲面齿轮高周疲劳寿命评估与预测具有重要意义。For the contact fatigue failure problem of vehicles’hypoid gears under complex conditions,the rain-flow counting method and Goodman’s average stress equation were used to establish a contact statics model.The load-time history of the contact gear surface was extracted.And the load spectrum of hypoid gears was produced.The research focused on predicting the high-cycling fatigue life of hypoid gears based on the load spectrum.The study also utilized the finite element method to simulate gear teeth’s meshing or contact behaviour under loading conditions.Moreover,the influence mechanism of fatigue damage criterion on the gear fatigue life prediction was revealed.The proposed method is highly significant in assessing and predicting the high-cycling fatigue life of vehicles’hypoid gears.

关 键 词：准双曲面齿轮 接触疲劳 载荷谱 疲劳寿命 

分 类 号：TH213.5[机械工程—机械制造及自动化]