The Influence of Under Sleeper Pads on Railway Track Dynamics

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Manuela
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The Influence of Under Sleeper Pads on Railway Track Dynamics

Mensagem por Manuela » 05 Set 2016, 14:44

Autor: Stephen Witt.

Department of Management and Engineering
Division of Solid Mechanics
SE-581 83 Linköping
Sweden.

Abstract
In this work the influence of Under Sleeper Pads on the dynamic forces on a railway
track is investigated. A special interest is devoted to the effect of using Under Sleeper
Pads in a railway track with changing vertical stiffness. The contact force between
wheel and rail and the ballast contact forces are examined. For the investigation a
finite element model with the length of thirty sleepers is created and calculations are
performed with the software LS-DYNA. Three different cases of varying vertical track
stiffness are studied: the transition from an embankment to a bridge, a randomly
varying track stiffness along the railway track and hanging sleepers.
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