Railway Car Dynamic Response To Track
Transition Curve And Single Standard Turnout
Author(s)
J. Droździel & B. Sowiński
Abstract
In this paper vehicle dynamic responses to clothoidal, sinusoidal and parabolic
types of transition curves are considered. The responses such as vehicle motion
and wheel-rail forces are significantly dependent on the type of curve. Also the
dynamic interaction between the railway car and a track on a switch and a
crossing of a standard turnout is considered. It was made for car-running
direction \“on” and \“from” a switch facing point, and for nominal and
geometrically imperfect track. The results imply the conclusion that specific
transition curve and turnout parameters create a vital cause of dynamic
interaction growth between a vehicle and a track.
Keywords: vehicle, track, dynamics, transition curve, standard turnout.
1 Introduction
In this paper, the railway car–track system dynamic interaction influenced by
track transient excitations is presented. A few transition curves and a single
standard turnout are taken into account. Simulation results are obtained and
discussed for elastically moveable rails.
Modern railway tracks designed for high speed traffic should meet a number
of requirements regarding travel comfort and safety. Designed transition track
geometry changes may cause additional dynamic forces which are dependent,
among others, on the shape and magnitude of these changes. During track
operation the changes are additionally affected by the state of track maintenance.
They are also the cause of increased local degradation of track components.
For analyzing dynamic processes of this type, an appropriate simulation model
was elaborated.
Keywords
vehicle, track, dynamics, transition curve, standard turnout.
Related Book
Other papers in this volume
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