重载机车轴箱拉杆振动与疲劳寿命分析  

Analysis of Vibration and Fatigue Life of Axle Box Links for Heavy-haul Locomotives

作　　者：谢彦飞 向英杰 XIE Yanfei;XIANG Yingjie(Guoneng Lugang(Beijing)Materials Co.,Ltd.,Beijing,100161;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu,Sichuan,610031)

机构地区：[1]国能路港(北京)物资有限公司,北京100161 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《能源科技》2023年第5期80-84,共5页Energy Science and Technology

摘　　要：随着重载列车的轴重和运量不断提升,运行环境越加复杂,对机车轴箱拉杆的可靠性提出了更为严峻的挑战。轴箱拉杆一旦失效,将严重危及行车安全。基于机车结构、车辆系统动力学、有限元、疲劳可靠性等理论,利用SIMPACK、ANSYS-Workbench仿真平台,模拟重载机车的运行工况和载荷,分析轴箱拉杆的弹性模态,利用Goodman平均应力收敛理论计算得到轴箱拉杆的疲劳寿命,为优化轴箱拉杆的修程提供支持,为机车的安全可靠运行提供保障。As the axle load and traffic volume of heavy-haul trains increase continuously,the operating environment is becoming increasingly complex,presenting more severe challenges to the axle box link reliability of locomotives.Once the axle box link fails,it will severely endanger the traffic safety.Based on the theories of locomotive structure,vehicle system dynamics,finite element and fatigue reliability,the operating conditions and loads of heavy-haul locomotives are simulated,and the flexible modality of axle box link is analyzed through the simulation platforms of SIMPACK and ANSYS-Workbench.The fatigue life of axle box link is calculated and obtained based on the Goodman mean stress convergence theory,supporting the optimization of axle box link repair and guaranteeing the safe and reliable operation of locomotives.

关 键 词：重载机车 轴箱拉杆 机车动力学 寿命分析 

分 类 号：U26[机械工程—车辆工程]