摘要
为解决汽车车轮安全使用性能和寿命要求的问题,对车轮动态径向疲劳寿命进行预测。建立车轮在径向疲劳试验工况下的有限元模型,通过施加呈余弦函数分布的径向载荷,结合车轮的动态特性,运用nCode DesignLife软件对其进行疲劳分析,预测车轮在径向疲劳实验时的疲劳寿命。研究结果表明:车轮的轮辐中部、内轮缘、轮辋内胎圈座处和轮辋内侧是疲劳损伤的主要部位,可为车轮结构的进一步优化提供依据。
In order to solve the problem of safe use performance and life requirements of the vehicle wheels,the dynamic radial fatigue life of the wheel was predicted.The finite element model under radial fatigue test conditions is established,and radial load distributed by the cosine function was applied,and combining the dynamic characteristics of the wheel,the fatigue analysis is performed by nCode DesignLife software to predict the fatigue life of wheel during the radial fatigue test.The results show that the middle part of the wheel spoke,the inner rim,the inner bead seat of the rim and the inner side of the rim are the main parts of the fatigue damage,which provides a basis for further optimization of the wheel structure.
作者
杨云端
高旭东
王皓
李坤
李宗泽
Yang Yunduan;Gao Xudong;Wang Hao;Li Kun;Li Zongze(School of Mechanical Engineering,Nangjing University of Science&Technology,Nanjing 210094,China)
出处
《兵工自动化》
2019年第10期71-75,共5页
Ordnance Industry Automation
关键词
车轮
径向疲劳
动态特性
有限元分析
疲劳寿命
wheel
radial fatigue
dynamic characteristics
FEM simulation
fatigue life
