The dynamic interaction between a running train, the track structure and the supporting bridge is investigated resorting to substructure technique. The train is idealised as a sequence of identical vehicles moving at constant speed. Both the rails and the bridge are modelled as Bernoulli-Euler beams, while the ballast is characterised as a viscoelastic foundation. A variant of the component-mode synthesis method is proposed to couple the continuous (rails and bridge) and discrete (train) substructures. Numerical investigations have demonstrated the accuracy and efficiency of the procedure, which allows to compute simultaneously the dynamic responses of the train, rails and bridge.

A substructure approach for the dynamic analysis of train–track–bridge system

SOFI, Alba
2005

Abstract

The dynamic interaction between a running train, the track structure and the supporting bridge is investigated resorting to substructure technique. The train is idealised as a sequence of identical vehicles moving at constant speed. Both the rails and the bridge are modelled as Bernoulli-Euler beams, while the ballast is characterised as a viscoelastic foundation. A variant of the component-mode synthesis method is proposed to couple the continuous (rails and bridge) and discrete (train) substructures. Numerical investigations have demonstrated the accuracy and efficiency of the procedure, which allows to compute simultaneously the dynamic responses of the train, rails and bridge.
File in questo prodotto:
File Dimensione Formato  
Biondi_2005_Computers_Substructure_editor.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 617.24 kB
Formato Adobe PDF
617.24 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12318/3650
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 98
  • ???jsp.display-item.citation.isi??? 81
social impact