关于货车车体疲劳试验模拟目标选择的研究  

Study on Simulation Target Selection of Car Body of Freight Car in Fatigue Test

作　　者：赵尚超 王东坡[1] 李向伟 ZHAO Shangchao;WANG Dongpo;LI Xiangwei(School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China;CRRC Qiqihar Rolling Stock Co.,Ltd.,Qiqihar 161002,China)

机构地区：[1]天津大学材料科学与工程学院,天津300350 [2]中车齐齐哈尔车辆有限公司,黑龙江齐齐哈尔161002

出　　处：《铁道车辆》2021年第3期21-25,共5页Rolling Stock

摘　　要：基于线路测试数据,在疲劳试验台架上模拟某敞车线路运行时的车体加速度和应力,对以摇枕加速度为目标和以车体加速度为目标的线路模拟对比研究。结果表明:当以摇枕加速度为目标时,摇枕的状态与线路运行一致,但车体加速度和车体应力的模拟结果较差;当以车体加速度为目标时,模拟结果明显优于以摇枕加速度为目标的模拟结果。Based on the line test data,the acceleration and stress of the car body during the operation of a gondola car on line are simulated on the fatigue test bench,and the line simulations with the target of acceleration of bolster and acceleration of car body are compared.The results show that when the acceleration of bolster is taken as the target,the status of the bolster is consistent with the operation of the line,but the simulation results of the acceleration and stress of the car body are poor.When the acceleration of car body is taken as the target,the simulation results are significantly better than those with the acceleration of bolster.

关 键 词：车体 疲劳试验台 模拟 研究 

分 类 号：U270.32[机械工程—车辆工程] U270.1+4[交通运输工程—载运工具运用工程]