车辆悬挂参数对城轨车辆的扭曲线路通过能力影响的研究

打开文本图片集

关键词：悬挂参数；扭曲线路；脱轨系数；EN14363标准；多体动力学

中图分类号：U270.1 文献标志码：A doi：10.3969/j.issn.1006-0316.2026.02.007

文章编号：1006-0316（2026）02-0047-06

Research onthe Influence of Vehicle Suspension Parameters on theTwisted-Track PassingAbilityofUrbanRailVehicles

WANG Ye， ZHAO Feng

（Beijing Rail Transit Technology Equipment Group Co.， Ltd.， Beijing 10oooo， China）

Abstract ： Based on the EN14363 standard， this article studies the influence mechanism of suspension system parameters on the ability of urban rail transit vehicles to pass through twisted track.Through multi-body dynamics simulation，the effects of primary suspension （steel spring vertical stiffness，rotary arm positioning node）and secondarysuspension （air spring，anti-rollbar）on derailment coefficient，wheel rail vertical force，and lateral force areanalyzed.Research has foundthat inasuspensionsystem，the vertical stiffessofsteel springs has themost significant impact，which optimizes the distribution of wheel rail vertical forces by reducing the torsional load transmited to the vehicle bodyand increasing the minimum vertical force，thereby improving the vehicle'sability to pass through curves.And the stiffness of the rotaryarm positioning node has litle effect under low-speed quasi-staticconditions.In terms ofsecondarysuspension，the vertical stiffess of the air spring and the stiffess of the anti-roll bar have a significant impact on the twisted track passing index.Reducing the vertical stiffness can improvethe distributionofvertical forces，and reducingtheanti-rollstifess cansuppress therolling of the vehiclebody.Thelateral stiffness of theair spring optimizes the lateral force response by adjusting the turning resistance of the bogie，thereby improving the performance of pasing through twisted track.This study provides a theoretical basis for the design of suspension parameters forvehiclesand the improvement ofoperational safety on degraded railway lines.

Keywords'suspension parametersitwistedtrack derailmentcoefficient EN14363 standard 'multi-bodydynamics

随着近年来城市轨道交通的快速发展，列车在复杂轨道环境下的安全性问题愈发突出。（剩余5996字）