Open AccessAn analysis of vehicle - railway exchanger interaction
Author(s) -
M C Tudorache,
Iulia Coca Neagoe
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/682/1/012002
Subject(s) - classification of discontinuities , contact patch , structural engineering , engineering , computer science , mechanical engineering , automotive engineering , materials science , mathematics , composite material , mathematical analysis , natural rubber , tread
The fast variation of the section and contact characteristics of railway exchangers is a difficult matter for an analytical approach. At the same time, vehicle - railway exchanger system includes multiple contact patches, discontinuities in the contact points evolution and the necessity to compute stresses and deformations. As a consequence of the harrs working conditions in the system there is a permanent concern to improve its performance. The analysis of the state of art in the research indicated the need of a complex theory for the study of the mechanical contact. In the paper, a tridimensional analysis of the vehicle - railway exchanger contact patch is carried out using “Contact” software, based on Kalker’s theory. The outcome of the study is the computation of tangential forces, creepage speeds and stresses distribution in the contact patches, in order to elucidate the vehicle evolution during this interaction and the estimation of the running safety.