Aspects regarding the contact between wheels and turnouts

6th ModTech International Conference - Modern Technologies in Industrial Engineering

Tudorache, C.^1 ; Oprea, R.^1 ; Stafie, M.^1

University Politehnica of Bucharest- Romania, Faculty of Transportation, Railway Vehicles Engineering Department, Splaiul Independentei nr. 313, Sector 6, Bucuresti, CP

060042, Romania^1

关键词: Computing system;    Contact points;    FE software;    Life safes;    Look up table;    Multi-point contacts;    On the flies;    Three-dimensional theory;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/400/2/022057/pdf
DOI  :  10.1088/1757-899X/400/2/022057

来源: IOP

【 摘 要 】

Wheel and turnouts life safe operation and life span prediction may be improved through a more thorough research. Currently, numerical methods for the study of the before mentioned problem bring significant overhead in computing systems. The present work describes a multi-point contact study between wheel and switch using Kalker's three-dimensional theory, using CONTACT software. This method has the advantage to suit well the frictional aspects of the phenomena. More than that, comparisons between results obtained with FE software and with CONTACT software reveal a remarkable similarity. The latter method however, is significantly more efficient from the numerical method point of view and it also allows computing the contact points position either on the fly or using look up tables.