摘要
为了减轻地铁车辆在圆曲线区段运行所造成的轮轨磨耗,提高车辆运行的安全性与舒适性,基于车辆动力学理论,通过动力学软件SIMPACK建立轮轨关系模型,针对列车通过圆曲线时过超高、正常超高和欠超高三种工况进行研究.分析了三种工况下,轮轨横向力、轮轨垂向力、脱轨系数、磨耗功率、磨耗指数、轮重减载率和倾覆系数7个动力学参数在列车运行中的变化规律,并深入分析磨耗指数和磨耗功率与车辆实际通过时产生超高的变化规律,得出超高变化与磨耗指数成负相关,与磨耗功率成正相关,且列车通过圆曲线时应尽量降低速度,在条件不允许时,应采用尽量小的欠超高.
In order to reduce the subway wheel-rail wear and improve the safety and comfort during the train running round the curve section,a wheel-rail relationship model is established using SIMPACK software based on the vehicle dynamics theory. It conducts three conditions including deficient superelevation,normal superelecation and surplus superelevation. It analyses the change regulation about sevenparameters which are wheel-rail lateral force,wheel-rail vertical force,derailment coefficient,wear power,wear number,wheel load reduction rate and overturning coefficient during the train running. Most importantly,it analyses deeply the regulation of the change about wear power and wear number accompanied by the change of superelevation. One conclusion is wear number and the change of superelevation are negatively correlated. The other is wear power is positively correlated. It suggested that it should use lower speed when the train crosses the curves of the rail. It should use lower deficient superelevation when it can not in the case of the best situation.
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2015年第1期101-107,共7页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
北京市教育委员会科技发展计划项目资助(KM201310016017)
关键词
车辆动力学
欠超高
过超高
地铁轮轨磨耗
仿真
vehicle dynamics
deficient superelevation
surplus superelevation
subway wheel-rail wear
simulation
