Multibody train analysis is used increasingly by railway operators whenever a reliable and timeefficient method to evaluate the contact between wheel and rail is needed. Particularly, the wheel-rail contact is one of the most important aspects that affects a reliable and time-efficient vehicle dynamics computation. The focus of the approach proposed here is to carry out such tasks by means of online wheel-rail elastic contact detection. In order to improve efficiency and save time, a main analytical approach is used for the definition of wheel and rail surfaces as well as for contact detection, then a final numerical evaluation is used to locate contact. The final numerical procedure consists in finding the zeros of a nonlinear function in a single variable. The overall method is based on the approximation of the wheel surface, which does not influence the contact location significantly, as shown in the paper.
A third-order approximation method for three-dimensional wheel-rail contact
Näherungsmethode dritter Ordnung für einen dreidimensionalen Rad-Schiene-Kontakt
Vehicle System Dynamics ; 50 , 1-3 ; 431-448
2012
18 Seiten, 18 Bilder, 18 Quellen
Article (Journal)
English
A third-order approximation method for three-dimensional wheel-rail contact
Automotive engineering | 2012
|A third-order approximation method for three-dimensional wheel–rail contact
Taylor & Francis Verlag | 2012
|A third-order approximation method for three-dimensional wheelrail contact
Online Contents | 2012
|Springer Verlag | 2024
|Engineering Index Backfile | 1949
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