基于Isight的铁路罐车车体疲劳强度分析  

Fatigue Strength Analysis of Railway Tanker Truck Bodies Based on Isight

作　　者：贾明震 马思群[1] 聂春戈[1] 陶然[2] 温佳澄 JIA Ming-zhen;MA Si-qun;NIE Chun-ge;TAO Ran;WEN Jia-cheng(College of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian 116028,China;School of Art,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学机车车辆工程学院,辽宁大连116028 [2]大连交通大学艺术学院,辽宁大连116028

出　　处：《机械工程与自动化》2024年第4期73-74,79,共3页Mechanical Engineering & Automation

基　　金：2022年度辽宁省普通高等教育本科教学改革研究项目(10150-312);辽宁省交通运输厅交通科技计划项目(202151)。

摘　　要：针对通过焊接工艺组装而成的铁路罐车在运行中经常发生断裂的问题,利用Isight平台,根据美国AAR标准提供的载荷谱,依据国际焊接协会International Institute of Welding标准,基于准静态法和Miner累计损伤理论选取了9个危险焊缝进行疲劳寿命评估。通过将焊接疲劳计算的相关文件集成到Isight平台,进行了流程化虚拟疲劳计算。计算结果显示,所选的9个焊缝均符合设计要求。该方法显著缩短了疲劳寿命计算时间,并提高了计算结果的可靠性。In order to solve the problem that the railway tank car assembled by welding process often breaks during operation,using Isight platform,based on the load spectrum provided by the American Association of Railroads(AAR)standard and the International Institute of Welding(IIW)standard,9 critical weld joints were selected to evaluate the fatigue life using the quasi-static method and Miner cumulative damage theory.By integrating the relevant documents for welding fatigue calculation into the Isight platform,a systematic virtual fatigue calculation was conducted.The calculation results show that all 9 selected weld joints comply with the design requirements.This method significantly reduces the calculation time for fatigue life and improves the reliability of the calculation results.

关 键 词：铁路罐车 疲劳寿命 焊接结构 流程化分析 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] U272.4[自动化与计算机技术—计算机科学与技术]