Title: Track state control with use of real time digital data processing

Authors: Yasukuni Naganuma, Yoshihiko Sato

Addresses: Nihonbashi Hirose Bldg., 3-1-17, Nihonbashi, cyuo-ku, Tokyo, 103-0027, Japan. ' Nippon Kikai Hosen KK.(JR Central Group), Shinjyuku-Toyo Bldg., 3-36-10, Shinjyuku, Shinjyuku-ku, Tokyo 160-0022, Japan

Abstract: To realise optimal riding comfort on high speed trains running on Shinkansen, it is necessary to remove the long wave components of track irregularity that correspond to the natural frequency of vehicles. To execute the maintenance work on such components effectively, it is necessary to pick up problem spots completely. From this point of view, two methods for getting track waveform on the ground are given. First is the inertia method. In this method, the distorted waveform is rectified in real-time. Second is the inverse filtering method, which restores the track waveform on the ground from l0m-versine. The restoration is realised accurately in real-time. Then, the track state control considering both vehicle dynamics and human sensibility is given. The latter will be an effective and economical way of track maintenance planning.

Keywords: riding quality; track irregularity measurement; vehicle vibration; high speed trains; riding comfort.

DOI: 10.1504/IJHVS.2000.004451

International Journal of Heavy Vehicle Systems, 2000 Vol.7 No.1, pp.82 - 95

Published online: 29 Apr 2004 *

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