Track Measurement By Kyushu Shinkansen
Cars In Commercial Service
Author(s)
H. Moritaka & T. Matsumoto
Abstract
The Kyushu Railway Company (JR [Japan Railway] Kyushu) has introduced, for
the first time in Shinkansen trains in Japan, a device that can measure all track
irregularity using cars in commercial service. With that, special measurement
cars were no longer needed, and frequent monitoring of the status of tracks
became possible.
The track irregularity measurement device employs an inertial measurement
method, whereby track irregularity can be measured at a single cross-section. It
is mounted with a special attachment base at the center of the bogie frame on
rear bogies of the lead cars at both ends of the train. Measurement operations are
done by remote control from PCs at the wayside.
Devices that can measure track irregularity, body vibration acceleration, and
axle box vibration acceleration were mounted to Shinkansen cars in commercial
service introduced in August 2009, and use of the devices commenced. Those cars
have run 458,299 km as of the end of April 2010, and track measurement was
made without problems in the 27,412 km for which measurements were taken.
Keywords: Kyushu Shinkansen, track measurement by Kyushu Shinkansen cars
in commercial service, the inertial versine method.
1 Introduction
The Kyushu Railway Company (JR [Japan Railway] Kyushu) has been
proceeding since FY 2005 with the technical development of measurement
functions for track irregularity, vibration acceleration, and axle box vibration
acceleration to add to Shinkansen cars in commercial service. As a result, the
Keywords
Kyushu Shinkansen, track measurement by Kyushu Shinkansen cars
in commercial service, the inertial versine method
Related Book
Other papers in this volume
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