Effect of oil and water mixtures on adhesion in the wheel/rail contact

被引：39
|
作者：
Lewis, R. [1 ]
Gallardo-Hernandez, E. A. [1 ]
Hilton, T. [2 ]
Armitage, T. [2 ]
机构：
[1] Univ Sheffield, Dept Mech Engn, Sheffield S1 3JD, S Yorkshire, England
[2] Ove Arup & Partners Ltd, Adv Technol & Res, London, England
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT | 2009年 / 223卷 / 03期
关键词：
wheel/rail adhesion; oil; water; roughness; RAIL ADHESION; FRICTION;
D O I：
10.1243/09544097JRRT248
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This article details the findings of a series of twin disc machine adhesion tests that investigated the effects of oil and water mixtures on adhesion at the wheel/rail interface. Oil was found to have a dominant effect on adhesion in the presence of water. Surfaces coated with oil at 4.7 x 10(-3) g/cm(2) and sprayed with water had levels of adhesion similar to those coated by a replenishing supply of oil. The tests showed that drying a wet contact can initially give a reduction in adhesion, that increased roughness results in increased adhesion in the presence of oil, and that increased contact pressure improves adhesion in the presence of oil.
引用
收藏
页码：275 / 283
页数：9
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