Post-derailment dynamic simulation of rail vehicles: Methodology and applications
2008 (English)In: Vehicle System Dynamics, ISSN 0042-3114, Vol. 46, no Suppl. S, 289-300 p.Article in journal (Refereed) Published
An earlier developed multi-body system post-derailment module. that predicts the wheelsets' behaviour after impact with concrete sleepers, is upgraded to account for possible wheel-rail fastener impact after train derailments at high speed. The vertical stiffness describing the wheel-fastener impact behaviour is calibrated and validated based on two authentic derailment cases. Geometrical specifications that permit it brake disc and a bogie frame to act as substitute guidance mechanisms after Hart e climbing derailments on Curved track are presented for an X 2000 trailer car. Further, an introductory analysis on the post-derailment vehicle behaviour on tangent track after a 'flange on rail head' derailment condition is also presented its a function of bogie yaw resistance. The risk of carbody overturning after derailments on tangent track is assessed as a function of coupler height and carbody centre of gravity as well as bogie transversal beam position.
Place, publisher, year, edition, pages
2008. Vol. 46, no Suppl. S, 289-300 p.
train, derailment, overturning, MBS simulation, wheel-sleeper impact, centre of gravity
Research subject Järnvägsgruppen - Fordonsteknik
IdentifiersURN: urn:nbn:se:kth:diva-7694DOI: 10.1080/00423110801939162ISI: 000263476500023ScopusID: 2-s2.0-51449101246OAI: oai:DiVA.org:kth-7694DiVA: diva2:12796
QC 20100701 Uppdaterad från submitted till published (20110323). 20th Symposium of the International-Association-for-Vehicle-System-Dynamics, Berkeley, CA, AUG 13-17, 20072007-11-222007-11-222011-05-06Bibliographically approved