Effects of train impacts on urban turnouts: Modelling and validation through measurements

Bruni, S; Anastasopoulos, I; Alfi, S; Van Leuven, A; Gazetas, G

dc.contributor.author	Bruni, S	en
dc.contributor.author	Anastasopoulos, I	en
dc.contributor.author	Alfi, S	en
dc.contributor.author	Van Leuven, A	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T01:30:18Z
dc.date.available	2014-03-01T01:30:18Z
dc.date.issued	2009	en
dc.identifier.issn	0022-460X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19540
dc.subject	Finite Element Model	en
dc.subject	National Technical University of Athens	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Finite element models	en
dc.subject.other	Impact loadings	en
dc.subject.other	Impact loads	en
dc.subject.other	Modelling and validation	en
dc.subject.other	Modelling techniques	en
dc.subject.other	Multi-body models	en
dc.subject.other	Railway system	en
dc.subject.other	Simplified models	en
dc.subject.other	Technical universities	en
dc.subject.other	Train passages	en
dc.subject.other	Train-track interaction	en
dc.subject.other	Urban railway	en
dc.subject.other	Wheel-rail contacts	en
dc.subject.other	Railroad cars	en
dc.subject.other	Railroad transportation	en
dc.subject.other	Railroads	en
dc.subject.other	Rails	en
dc.subject.other	Vehicle wheels	en
dc.subject.other	Finite element method	en
dc.title	Effects of train impacts on urban turnouts: Modelling and validation through measurements	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jsv.2009.02.016	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jsv.2009.02.016	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Train-track interaction at turnouts is a main issue in the design and maintenance of railway systems. Due to the particular geometry of wheel-rail contact and to the sudden variation of track flexibility, severe impact loads may occur during train passage over the turnout. In this paper, two different modelling approaches to reproduce train-turnout interaction are proposed and compared. A first technique, developed by Politecnico di Milano, is based on a detailed multi-body model of the trainset and of wheel-rail contact, whereas for the turnout structure a simplified finite element model is used. The second modelling technique, developed by the National Technical University of Athens, relies on a detailed finite element model of the turnout, while a simplified model is used to compute impact loading due to wheel passage. In this paper the two methods are validated trough comparison with line measurements performed on turnout systems from three different urban railway networks. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD	en
heal.journalName	Journal of Sound and Vibration	en
dc.identifier.doi	10.1016/j.jsv.2009.02.016	en
dc.identifier.isi	ISI:000267384200012	en
dc.identifier.volume	324	en
dc.identifier.issue	3-5	en
dc.identifier.spage	666	en
dc.identifier.epage	689	en