首页期刊在线 2023年（第26卷）第3期

小比例环形轮轨接触试验台可行性仿真研究

翟字波尧辉明董庆仑

Feasibility Simulation Research on Small-scale Annular Wheel-rail Contact Test Rig

ZHAI ZiboYAO HuimingDONG Qinglun

作者信息:

上海工程技术大学城市轨道交通学院， 201620，上海
Affiliation:

School of Urban Railway Transportation, Shanghai University of Engineering Science, 201620, Shanghai, China
关键词:

轨道交通;轮轨接触;试验台;缩比模型试验可行性仿真
Key words:

rail transit;wheel-rail contact;test rig;scale model test feasibility simulation
DOI:

10.16037/j.1007-869x.2023.03.019
中图分类号/CLCN:

U270.1+4； U211-5
栏目/Col:

研究报告

摘要:

针对由轮轨接触饱和蠕滑率引起的高频振动造成钢轨损伤问题，提出了一种小比例环形轮轨接触试验台动态模拟方法。其采用环形轨道模拟轮轨持续接触运行工况，结合转向架与受电弓组成的试验车辆模拟轮轨接触振动耦合作用，通过两套牵引系统模拟轮轨接触运行中的纵向接触蠕滑、加速及制动等工况。通过计算确定了环形钢轨的最小曲线半径为7.00 m，经SIMPACK软件仿真分析获得的最大脱轨系数为0668，符合安全运行要求。

Abstracts:

Aiming at the problem of rail damage caused by high frequency vibration due to the saturated creep rate of wheel-rail contact, a dynamic simulation method through a small-scale annular wheel-rail contact test rig is proposed. Annular track is adopted to simulate continuous wheel-rail contact operation working condition, the test vehicle composed of bogie and pantograph is used to simulate the wheel-rail contact vibration coupling action, and the vertical contact creep-slip, acceleration and braking conditions in wheel-rail contact operation are simulated by two sets of traction systems. The minimum curvature radius of the annular rail is 7.00 m, and the maximum derailment coefficient obtained from simulation analysis by SIMPACK software is 0.668, which meets the requirements of safe operation.