A model has been developed to predict the wear of railway wheels. This assumes wear is related to T.gamma, where T is tractive force and gamma is slip at the wheel/rail interface. Twin disc testing of rail and wheel materials was carried out to generate wear coefficients for use in the model. The model has been incorporated into ADAMS/Rail, which produces multi-body dynamics simulation of a railway wheelset. The methodology for predicting the evolution of a railway wheel profile is made up of three stages: ADAMS/Rail outputs contact conditions at the wheel/rail interface; simplified theory of rolling contact is then used to discretise the contact patches and calculate traction and slip within each; finally the wear coefficients are used with the tractions and slips to predict the wear and hence the change of wheel profile. This simulation routine will be used as part of a CAE package for assessing wheelset durability for the design of new wheelsets. The model has been applied to a multi-body simulation of a passage around a sample track length. The worn profile is quantitatively similar to published data.
Incorporating a railway wheel wear model into multi-body simulations of wheelset dynamics
Einbeziehung eines Eisenbahnradverschleißmodelles in Mehrkörpersimulationen der Radsatzdynamik
Tribological Research and Design for Engineering Systems, Leeds-Lyon Symposium on Tribology, 29 ; 367-376
Tribology Series ; 41
2003
10 Seiten, 9 Bilder, 1 Tabelle, 8 Quellen
Conference paper
English
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