Dynamic simulation of derailments and its consequences
2006 (English)In: Vehicle System Dynamics, ISSN 0042-3114, Vol. 44, no Suppl 1, 652-662 p.Article in journal (Refereed) Published
This article describes the necessary prerequisites and methodology in progress for studying train vehicle derailments and means of minimising the risk of catastrophic consequences. A comprehensive model has been developed and used in the multi-body system (MBS) simulation software for studying pre- and post-derailment vehicle behaviour. An axle-mounted brake disc and vertically extended bogie frames have shown empirically, as well as by MBS simulations, a potential to favourably influence the sequence of events in case of wheel flange climbing derailments. The MBS simulation methodology has been presented. Examples of how critical geometrical parameters affect the ability of these mechanisms to act as substitute guidance are presented. Further, a finite element (FE) model is developed for studying the impact phenomenon between a rail vehicle wheel and concrete sleepers. In particular, the proposed FE model will be used for obtaining hysteresis data for the wheel-sleeper force as functions of concrete indentation, for further development of the MBS simulations technique.
Place, publisher, year, edition, pages
2006. Vol. 44, no Suppl 1, 652-662 p.
train, derailment, bogie design, simulation, wheel-sleeper impact
IdentifiersURN: urn:nbn:se:kth:diva-42000DOI: 10.1080/00423110600882753ISI: 000244729300062ScopusID: 2-s2.0-65249187749OAI: oai:DiVA.org:kth-42000DiVA: diva2:445797
QC 201110052011-10-052011-10-052011-10-05Bibliographically approved