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Dynamic Load Computation for Flexible Guideways Under Moving Vehicles Within a Multibody Approach

by W. Duffek, DLR-Inst for Flight Systems Dynamics, Germany,
W. Kort?m, DLR-Inst for Flight Systems Dynamics, Germany,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

This paper addresses the problem of the dynamic interaction of vehicles with their supporting guideway. Because of topographical and environmental reasons, modern railways and magnetically levitated systems are considered to travel - at least to a significant amount - over elevated structures or series of bridges. For the simulation of complex vehicles multibody modelling and formalisms have been established during the last two decades. The main emphasis of this paper lies on the analysis of multibody vehicles running over beam type guideways: here the interaction can be computed efficiently using the concept of the so-called 'guideway-operator', where it is made use of a discretization of the guideway equations. The methods and the software which have been developed are applied in this paper to a model of the ICE train travelling over a three span bridge.

Subject Headings: Dynamic loads | Guideways | Vehicle loads | Moving loads | Dynamic structural analysis | Railroad bridges | Rail transportation

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