In this paper, the dynamic interaction between a running train, the railway 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 Winkler elastic foundation. The motion equations of the compound train-rails-bridge system are here derived and reduced by applying a variant of the component-mode synthesis method. It is also shown that by integrating the reduced equations of motion, the dynamic responses of the train, rails and bridge can be simultaneously handled.
Analysis of bridge-vehicle interaction by component-mode synthesis method / Biondi, B; Muscolino, G; Sofi, Alba. - (2003). (Intervento presentato al convegno NINTH INTERNATIONAL CONFERENCE ON CIVIL AND STRUCTURAL ENGINEERING COMPUTING tenutosi a NETHERLANDS nel 2-4 SEPTEMBER 2003) [10.4203/ccp.77.89].
Analysis of bridge-vehicle interaction by component-mode synthesis method
SOFI, Alba
2003-01-01
Abstract
In this paper, the dynamic interaction between a running train, the railway 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 Winkler elastic foundation. The motion equations of the compound train-rails-bridge system are here derived and reduced by applying a variant of the component-mode synthesis method. It is also shown that by integrating the reduced equations of motion, the dynamic responses of the train, rails and bridge can be simultaneously handled.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.