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Vehicle-track-underground modeling of rail induced wave propagation

Håkan Lane (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Torbjörn Ekevid (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Per Kettil (Institutionen för tillämpad mekanik) ; Chun Yuen Ching (Institutionen för tillämpad mekanik) ; Nils-Erik Wiberg (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
Computers & Structures (0045-7949). Vol. 85 (2007), 15-16, p. 1215-1229.
[Artikel, refereegranskad vetenskaplig]

A moving rail vehicle may cause propagating waves to the surroundings potentially leading to detrimental effects for the track construction, nuisances for the surroundings and interference with delicate electronic equipment. A full computational model should be able to couple a correct simulation of the rigid body motion of the different train parts with accurate prediction of the solid wave propagation in the ground. This paper integrates the dynamics of the vehicle and the elastic soil into one monolithic system. Equations of motion for the train have been merged the system representing the FEM problem for the rest of the structure. Three models of modern high-speed locomotives were run over a solid finite element model of a rail structure. (C) 2006 Elsevier Ltd. All rights reserved.

Nyckelord: rigid body dynamics, vibrations, finite element analysis



Denna post skapades 2009-01-19.
CPL Pubid: 88524