Effect of laser dispersed treated morphology on traction coefficient under mixed lubrication

IMECH-IR > 先进制造工艺力学实验室

	Effect of laser dispersed treated morphology on traction coefficient under mixed lubrication
	Li ZY(李正阳); Cai BC(蔡宝春); Yang B(杨兵); Ren ZY(任志远); Wu HZ(吴惠忠); Yang MJ(杨明江); Wei YJ(魏宇杰)
会议录名称	PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
	2014
会议名称	THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
会议日期	8-11 April 2014
会议地点	Ajaccio, Corsica, France
摘要	To investigate the influence of surface texture on traction characteristics of wheel/rail under mixed lubrication, laser dispersed treatment was used to form texture patterns, such as longitudinal, transverse and rhombus, on the surface of wheel discs. The film thickness and contact area ratio were calculated by using deterministic model instead of stochastic model. Based on the load-sharing concept, the hydrodynamic film and asperities both contribute in carrying the total load. Therefore the traction force is composed of two components: hydrodynamic traction force and asperity traction force. The tribological tests were conducted on an Amsler type wear testing machine. It is shown that the traction coefficient of rhombus pattern is higher than that of longitudinal and transverse, while the latters are similar. Though the asperity orientation of longitudinal and transverse is different, their influence on traction coefficient under mixed lubrication should be investigated further. © Civil-Comp Press, 2014.
关键词	Hydrodynamics Lubrication Stochastic models Stochastic systems Testing Vehicle wheels Contact area ratio Deterministic modeling Hydrodynamic films Mixed lubrication Traction characteristics Traction coefficient Tribological tests Wheel rail contacts
ISBN号	978-1-905088-59-1
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/78003
专题	先进制造工艺力学实验室
作者单位	Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Li ZY,Cai BC,Yang B,et al. Effect of laser dispersed treated morphology on traction coefficient under mixed lubrication[C]PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE,2014.