城轨交通下不同扣件参数对钢弹簧浮置板振动响应影响研究  

Study on the Effect of Different Fastener Parameters on the Vibration Response of Steel Spring Floating Plate Under Urban Rail Transportation

作　　者：杜威风 尧辉明[1] DU Weifeng;YAO Huiming(School of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《物流科技》2024年第20期99-101,105,共4页Logistics Sci Tech

基　　金：国家自然科学基金资助项目(51975347)。

摘　　要：钢弹簧浮置板轨道具有较好的结构稳定性,能够承受地铁列车的运行冲击和乘客的集中载荷,确保地铁站台的安全性和稳定性。文章以常见的地铁B型车及钢弹簧浮置板轨道为例,基于有限元仿真模型与多体动力学仿真模型,根据扣件不同参数工况下,对浮置板的振动响应进行了仿真分析。结果表明:扣件刚度对轨道系统的振动影响非常大,扣件刚度过小会影响轮轨系统的稳定性和安全性。通过增加扣件的阻尼,可以减少振动的幅值和能量,从而降低浮置板轨道的加速度响应,提高系统的稳定性和舒适性。The steel spring floating plate track has good structural stability,which can withstand the impact of subway train operation and the concentrated load of passengers to ensure the safety and stability of subway platforms.This paper takes the common subway B-type car and steel spring floating plate track as an example,based on the finite element simulation model and multi-body dynamics simulation model,according to the different parameters of fasteners under different working conditions,and the vibration response of the floating plate has been simulated and analyzed.The results show that the fastener stiffness has a great influence on the vibration of the rail system,and the stability and safety of the wheel-rail system may be affected if the fastener stiffness is too small.By increasing the damping of the fasteners,the amplitude and energy of the vibration can be reduced,thus reducing the acceleration response of the floating plate rail and improving the stability and comfort of the system.

关 键 词：轨道车辆 钢弹簧浮置板 有限元仿真 扣件 

分 类 号：F259[经济管理—国民经济] U270.33[机械工程—车辆工程]