An investigation to the combination effect of contact mechanics and operational aspect on the wheel wear rate and patterns of rail vehicles  Fulltext 

[ Ali Asadi Lari ] - Iran University of Science and Technology, Railway Engineering School, Tehran 16844, Iran
[ Ajay Kapoor ] - The University of Newcastle upon Tyne, Mechanical and System Engineering Dept, NE1 7RU, United Kingdom
[ Felix Schmid ] - The University of Sheffield, Mechanical Engineering Dept, Mapping Building, Sheffield, S1 3JD, UK

خلاصه مقاله:

Railway wheels are subject to high contact pressure and tangential stresses resulting in plastic deformation and wear. A series of activities is commonly employed by the operators to decrease the wear rate, though not addressing the hazardous failure mechanism of rolling contact fatigue (RCF). The present study has been focused on the running-in period, and on a procedure of bogie direction reversal (BDR) to show the importance of two domains of moving a wheelset, which are contact mechanics and operational aspect. The authors present wheel wear results within both flange and tread regions obtained in experimental work, which are then analysed.

BDR, RDR, wheel wear rate, wheel wear pattern, failure mechanisms