Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
ISSN-L : 0033-9008
OTHER PAPER
Theory and Practice of Optimum Correction using Restored Track Irregularity Waveform
Masako KAMIYAMAAtsushi FURUKAWAAkiyoshi YOSHIMURA
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1999 Volume 40 Issue 2 Pages 117-122

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Abstract

We have developed a new theory for correcting track irregularities by applying their restored waveforms and carried out experimental levelling and lining work. In this theory, the optimum shifting/lifting values are obtained as solutions for a typical quadratic programming problem. Restrictions on shifting rails are formulated as constraint conditions of the optimization problem. Furthermore, in the case of levelling work, a designed cross level can be realized. From experimental work on ballasted and slab track, the effectiveness of this theory has been confirmed. In the range of long wavelengths up to 50 m, the amplitude of track irregularity has decreased.

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© 1999 by Railway Technical Research Institute
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