摘要
为评估新开发的等温淬火球墨铸铁轨道车辆车轮的静强度与疲劳强度,采用有限元软件开展三维有限元分析,依据《铁路应用-轮对和转向架-整体半轮-技术认证程序第一部分:锻造和轧制车轮》(EN 13979-1:2020)及《铁道车辆车轮强度评定方法》(TB/T 3463-2016),计算其在直线、曲线、道岔及超常工况下的等效应力以完成静强度评估;在此基础上,深度解析最大主应力投影准则,编写后处理程序对车轮辐板疲劳强度进行校核。结果显示,该车轮静强度和疲劳强度均符合设计要求。本研究通过应用最大主应力投影准则与专属后处理程序开发,实现了辐板疲劳强度的精准校核,为等温淬火球墨铸铁车轮的设计优化提供了技术支撑。
In order to evaluate the static strength and fatigue strength of the newly developed Austempered Ductile Iron railway-wheel,the finite element software is used to carry out the three-dimensional finite element analysis,and calculate the equivalent stresses in straight line,curved line,turnouts and extraordinary working conditions to conduct the static strength evaluation according to the standards EN13979 and TB/T3463-2016.On this basis,the maximum principal stress projection criterion is analyzed in depth,and the fatigue strength of the wheel spoke plate is calibrated by the post-processing program,and further the maximum principal stress projection criterion is analyzed in depth,and a post-processing program is prepared to calibrate the fatigue strength of the wheel spokes.The results show that the static strength and fatigue strength of the wheel meet the design requirements.By applying the maximum principal stress projection criterion and exclusive post-processing program development,this study realizes the accurate calibration of the fatigue strength of the spoke plate,which provides technical support for the design optimization of Austempered Ductile Iron wheels.
作者
王全彪
王成琪
苏仰旋
徐东辉
朱梦坤
Wang Quanbiao;Wang Chengqi;Su Yangxuan;Xu Donghui;Zhu Mengkun(Research Center,National Innovation Center(Oingdao)of High Speed Train,Shandong,Qingdao 266000,China)
出处
《铁道技术标准(中英文)》
2025年第9期46-52,共7页
Railway Technical Standard(Chinese & English)
基金
国家重点研发计划(2022YFB4300100)。
关键词
车轮
静强度
疲劳强度
最大主应力
wheel
static strength
fatigue strength
maximum principal stress
