摘要
提出一种基于小波理论改进三角级数法的轨道不平顺模拟方法,结合建立的7刚体42自由度车辆动力学模型和轮轨接触模型,基于SIMPACK搭建变轨距列车的动力学仿真模型,采用参数试验法对悬挂参数与车轮踏面进行优化设计,对经结构优化的变轨距转向架进行车辆动力学性能预测,车辆的临界速度远高于400 km/h的设计要求,平稳性指标达到标准规定的二级车辆平稳性水平,曲线通过性评价指标均低于安全限值,所开发的变轨距转向架列车具有良好的动力学性能。
A track irregularity simulation method based on improved triangular series method based on wavelet theory was proposed.Combined with the established 7-rigid-body 42 degrees of freedom vehicle dynamics model and wheel-rail contact model,a dynamic simulation model of variable gauge train was built based on SIMPACK.The suspension parameters and wheel tread were optimized by parameter experiment,and the dynamic performance of the modified gauge bogie was predicted,the critical speed of the vehicle is far higher than the design requirements of 400 km/h,stationarity index reach the standard of secondary vehicle stability level,curve through sexual evaluation indexes is lower than the safety limit,developed by variable gauge bogie train has good dynamic performance.
作者
刘玉梅
盛佳香
庄娇娇
陈熔
赵大龙
LIU Yu-mei;SHENG Jia-xiang;ZHUANG Jiao-jiao;CHEN Rong;ZHAO Da-long(College of Transportation,Jilin University,Changchun 130022,China;School of Mechanical and Vehicle Engineering,Linyi University,Linyi 276000,China;CRCC Changchun Railway Vehicles Co.,Ltd.,Changchun 130022,China)
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2024年第2期453-460,共8页
Journal of Jilin University:Engineering and Technology Edition
基金
吉林省科技厅重点研发项目(20200401108GX)
吉林省科技厅重大研发专项项目(20210301006GX)。
关键词
铁路运输
变轨距转向架
车辆动力学
结构优化
轨道不平顺
小波理论
railway transportation
variable gauge bogie
vehicle dynamics
structural design
track irregularity
wavelet theory
