Influence of leaf, humidity and applied lubrication on friction in the wheel-rail contact: pin-on-disc experiments

被引：83

作者：

Olofsson, U ^{[1
]}

Sundvall, K ^{[1
]}

机构：

[1] KTH, Dept Machine Design, SE-10044 Stockholm, Sweden

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT | 2004年 / 218卷 / 03期

关键词：

leaf; coefficient of friction; wheel-rail contact; relative humidity; lubricant; pin-on-disc contact;

D O I：

10.1243/0954409042389364

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A novel test method has been used to study how applied and natural lubrication (leaf and humidity) influences the coefficient of friction in the wheel-rail contact. A pin-on-disc tribometer placed in a climate chamber was used as the test equipment. The pin-on-disc contact simulates the wheel-rail contact caused by commuter train traffic on straight track. The results show that the coefficient of friction decreases when the relative humidity increases and decreases even more when a leaf is used as a lubricant. By using an elm leaf as the lubricant, the coefficient of friction is reduced by a factor of four compared with the unlubricated case. However, the coefficient of friction decreases even more when a rail lubricant is used.

引用

页码：235 / 242

页数：8

共 18 条

[1] WHEEL-RAIL ADHESION - INFLUENCE OF RAILHEAD DEBRIS [J].