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

SOFI, Alba
2003

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12318/14642
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