Modeling and simulation of freight wagon with special attention to the prediction of track damage
2014 (English)In: The international Journal of railway technology, ISSN 2049-5358, Vol. 3, no 1, 1-36 p.Article in journal (Refereed) Published
This paper gives an overview of the state of the art of modelling and simulation of freight wagons. The main focus of the paper is to analyse the impact of freight wagons operation on track and wheel damage. Especially experiences of more than 15 years of modelling and simulation of a variety of freight wagons at KTH Royal Institute of Technology are summarized. Different models for the dry friction suspension elements are presented. The challenges of validation arising e.g. from the strong non-linearities and non-smoothness in vehicle models are discussed. Possibilities to use simulation results to predict wheel and track damage like wear, rolling contact fatigue and track settlement are introduced. It is concluded that it is possible to develop simulation models that give relevant results, even though it is more difficult than for passenger vehicles. The results, however, are very sensitive to small changes in the input parameters; therefore a sensitivity analysis regarding some key parameters should always be included in the validation phase of a model.
Place, publisher, year, edition, pages
Lisbon: Saxe-Coburg Publications , 2014. Vol. 3, no 1, 1-36 p.
Freight wagon, simulation, friction damping, running behaviour, track damage, wear, rolling contact fatigue, track access charges
Vehicle Engineering Reliability and Maintenance Infrastructure Engineering
Research subject Järnvägsgruppen - Fordonsteknik; Vehicle and Maritime Engineering
IdentifiersURN: urn:nbn:se:kth:diva-163929OAI: oai:DiVA.org:kth-163929DiVA: diva2:802658
QC 201504242015-04-132015-04-132015-04-24Bibliographically approved