IF articles

Prediction analysis of dynamic behaviour

of the railway vehicle is achieved using the “multibody”

modelling technique, implemented in several codes available

on the market. Within the railway field, multibody

codes used by major constructors are Adams/VI-Rail

(hereinafter shorten to VI-Rail) and Simpack.

In this work two running dynamic analysis from two

identical calculation models were carried out in parallel,

each implemented using one of the above mentioned

codes. The results thus obtained have been compared between

each other, trying to give to the reader a picture of

the simulations normally performed during the design

phase. In order to better understand and interpret the results

obtained, great room has been dedicated to the implementation

features of both models, to the verification

of their plausibility and to the description of the respective

wheel-rail contact models.