轮对磨耗对特种加注运输车辆稳定性影响研究
Study on Impact of Wheelset Wear on Stability of Special Refilling Vehicle
姜杰 1刘洪芳 1李月鹏 2刘鹏飞 2王晨 3田瑞兰2
作者信息
- 1. 贵州航天天马机电科技有限公司,贵州 遵义 563099
- 2. 石家庄铁道大学,河北 石家庄 050043
- 3. 石家庄铁道大学,河北 石家庄 050043;中国铁建高新装备股份有限公司,云南 昆明 650021
- 折叠
摘要
针对特种加注运输车在运行过程中出现的车轮踏面异常凹磨磨耗现象,利用动力学软件SIMPACK建立了考虑轮轨接触几何关系的特种加注运输车辆动力学仿真模型,结合现场调查了一个镟修周期内车轮磨耗结果和轮轨接触几何关系,计算分析了车轮不同磨耗状态对加注运输车稳定性状态的影响.研究结果表明:踏面凹磨主要对加注运输车横向振动特性的影响较为明显,对垂向振动特性的影响较小;踏面凹磨对车辆稳定性的影响较为明显,对应的极限环收敛较慢,踏面凹磨易出现超临界分岔构型.通过仿真分析发现,在轮对横向位移相同的情况下,凹磨踏面对应的轮轨接触点在踏面分布的区间跨度较大,且对应的磨耗功率更大,后期更容易导致磨耗加剧.
Abstract
To address the phenomenon of abnormal concave wear of wheel tread occurring in operation of the special refilling vehicle,the dynamic software SIMPACK has been used to build a dynamic simulation model for the special refilling vehicle on considering the geometrical relationship of wheel-rail contact,the wheel wear result and the geometrical relationship of wheel-rail contact within a reprofiling cycle has been investigated on the site,and the impact of different wear states of wheel on the stability of refilling vehicle has been calculated and analyzed.The study result shows:the concave wear of tread has a more obvious impact on the lateral vibration characteristic of the refilling vehicle but a smaller impact on the vertical vibration characteristic;the concave wear of tread has a more obvious impact on the stability of the vehicle,the corresponding limit cycle converges more slowly,and the concave wear of tread is prone to the supercritical bifurcation configuration.It turns out from the simulation analysis that with the same lateral displacement of wheelset,the tread with concave wear corresponds to a larger span of distribution of wheel-rail contact points on the tread and to a greater wear power,so it will more easily lead to aggravation of wear in the future.
关键词
特种车辆/稳定性/动力学/轮轨接触/磨耗踏面Key words
special vehicle/stability/dynamics/wheel-rail contact/worn tread引用本文复制引用
出版年
2024
NETL
NSTL
万方数据