摘要
随着重载快速的实施,P60钢轨鱼鳞伤和剥离掉块更加突出,发展更加迅速.本文通过对津浦、沪宁、沪杭等繁忙干线上的钢轨鱼鳞伤和剥离掉块情况的现场调查,总结了钢轨鱼鳞伤及剥离掉块发生发展规律及主要基本特征,运用赫兹接触理论、轮轨磨擦学理论和轮轨耦合动力学理论,分析了钢轨鱼鳞伤和剥离掉块的成因,提出了减缓和整治钢轨鱼鳞伤和剥离掉块的措施.
With the raising of train speed and the enhancing of railway traffic, the rail comer fine cracks and shelling defects will occur more frequently, and develop more rapidly. According to the large quantity of 60kg/m rail comer fine cracks and shelling defects data gotten by investigating the Tianjin-Pukou, Shanghai-Nanjing and Shanghai-Hangzhou heavy traffic main railway, the mainly basic characteristics and development rule of rail comer fine cracks and shelling defects are summarized, This paper＇s aim is to analyze the causes that induce rail comer fine cracks and shelling defect by the theory of Hertz contact , wheel/rail tribology and wheel/rail couple dynamics, some measures for defending , alleviating and maintaining the defects were put forward at the end of the paper.
出处
《华东交通大学学报》
2005年第4期1-6,共6页
Journal of East China Jiaotong University
关键词
铁路
轨道
钢轨鱼鳞伤和剥离掉块
轮轨作用力
预防减缓措施
railway
track
rail comer fine cracks and shelling defects
wheel/rail force
defending and alleviating measures
