A numerical program for Railway vehicle-track-structure dynamic interaction using a modal substructuring approach
Contribuinte(s) |
Savoia, Marco |
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Data(s) |
15/03/2011
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Resumo |
This work presents a program for simulations of vehicle-track and vehicle-trackstructure dynamic interaction . The method used is computationally efficient in the sense that a reduced number of coordinates is sufficient and doesn’t require high efficiency computers. The method proposes a modal substructuring approach of the system by modelling rails , sleepers and underlying structure with modal coordinates, the vehicle with physical lumped elements coordinates and by introducing interconnection elements between these structures (wheel-rail contact, railpads and ballast) by means of their interaction forces. The Frequency response function (FRF) is also calculated for both cases of track over a structure (a bridge, a viaduct ...) and for the simple vehicle-track program; for each case the vehicle effect on the FRF is then analyzed through the comparison of the FRFs obtained introducing or not a simplified vehicle on the system. |
Formato |
application/pdf |
Identificador |
http://amslaurea.unibo.it/2098/1/gabriel_savini_tesi.pdf Savini, Gabriel (2011) A numerical program for Railway vehicle-track-structure dynamic interaction using a modal substructuring approach. [Laurea specialistica], Università di Bologna, Corso di Studio in Ingegneria meccanica [LS-DM509] <http://amslaurea.unibo.it/view/cds/CDS0454/> |
Relação |
http://amslaurea.unibo.it/2098/ |
Direitos |
info:eu-repo/semantics/openAccess |
Palavras-Chave | #rail-track modal analysis substructuring interaction approach vehicle-track-structure vibration #scuola :: 843884 :: Ingegneria e Architettura #cds :: 0454 :: Ingegneria meccanica [LS-DM509] #sessione :: terza |
Tipo |
PeerReviewed |