摘要
根据武广客运专线某曲线段的实测数据,对指定曲线段轨道的水平加速度、钢轨光带及侧磨情况进行分析,获得轮轨匹配较好的平均磨耗型面。以改善轮轨接触状态为目的,采用轮轨接触角曲线反求法,利用数学软件MATLAB对获得的平均磨耗型面进行优化设计得到共性度较高的优化型面。通过多体动力学软件SIMPACK进行车辆轨道耦合动力学仿真,确定型面优化方案能有效改善轮轨接触状态,并使得列车有较优的车辆动力学性能。
Based on the measured data from a curved section of the Wuhan-Guangzhou railway passenger dedicated line, an analysis on the horizontal acceleration, rail light strip and rail lateral abrasion of the track in this curved section was carried out, and the average wearing rail profile with good wheel-rail matching was obtained. Furthermore, in order to improve the contact status between wheel and rail, the optimization design to the average wearing rail profile was carried out by wheel/rail contact angle curve inverse method and by the mathematical software MATLAB. After that, an optimized rail profile with higher degree of conformity was obtained. Through vehicle-track coupling dynamic simulation via the multi-body dynamics software SIMPACK, it can be seen that the optimized rail profile can effectively improve wheel/rail contact status and can make the trains have better vehicle dynamic performance.
出处
《铁道标准设计》
北大核心
2014年第7期20-23,共4页
Railway Standard Design
基金
国家自然科学基金资助项目(51068007)
新世纪优秀人才支持计划项目(NECT-09-0167)
关键词
客运专线
钢轨型面
优化
接触状态
车辆动力学性能
passenger dedicated line
rail profile
optimization
contact status
dynamics performance of vehicle
