Estimation Of The Characteristic Of Contact Line
Uplift And Strain In The Neighborhood Of A
Tunnel Inlet By Computer Simulation
Author(s)
Y. Sugama, K. Shimizu & S. Amari
Abstract
In Japan, computer simulation is used to evaluate the characteristic of
performance of the current collection between overhead lines and a pantograph.
Characteristics of contact wire uplift and strain are important indices to evaluate
contact line structure in a high-speed railway. Especially in the case when a train
runs into a tunnel at high speed, pantographs are strongly affected by
aerodynamic flow. Therefore, it is important to investigate these characteristics
within a tunnel. In this study, we carried out measurement of contact wire uplift
and strain in the neighborhood of the tunnel inlet. Furthermore, we carried out a
simulation and estimated them with consideration of the pantograph lift. By
comparing the measurement result and simulation estimation, we examined the
validity of simulation. In this way, it is possible to improve the accuracy of
prediction of current collection performance of contact line by computer
simulation.
Keywords: current collection, the aerodynamic upward force of a pantograph,
wind velocity, contact wire uplift, contact wire strain.
Keywords
current collection, the aerodynamic upward force of a pantograph,
wind velocity, contact wire uplift, contact wire strain
Related Book
Other papers in this volume
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