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http://dx.doi.org/10.5050/KSNVE.2016.26.6.644

Influence of Vehicle Vibration on Track Geometry Measurement  

Bae, Kyu-Young (FIBERPRO Inc.)
Yong, Jae Chul (FIBERPRO Inc.)
Kim, Lee-Hyeon (Korea Railroad Research Institute)
Kwon, Sam-Young (Korea Railroad Research Institute)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.6_spc, 2016 , pp. 644-650 More about this Journal
Abstract
Track maintenance works based on track geometry recordings are essential to enhance the safety and comfort of railway transportation. Usually, the track irregularity has been measured by a special inspection trains which all were imported from abroad. Because the inspection train speed is limited under 160 km/h, it takes a long time to inspect railways and there is difficulty in daytime operation. To solve this problem, we started to develop a track geometry measuring system (TGMS) with measurement speed up to 300 km/h which can be installed in commercial vehicles such as HEMU-430X. In this paper, we introduce a newly developed inertial TGMS and propose two inertial navigation system (INS) algorithms (method A, B) for measuring track geometry. In order to investigate advantage and disadvantage of each algorithm, we performed vibration test of the TGMS, which was simulated by 6-axis shaking table. Through the vibration test, we analyzed the influence of vehicle vibration on the TGMS which will be installed on bogie frame. To the vibration test, two methods satisfied the required accuracy of track geometry measurement under the level of the actual vehicle vibration of HEMU-430X train. Theoretically, method A is sensitive to vehicle vibration than method B. However, HEMU-430X's bogie vibration frequency range is out of interest range of measurement system. Therefore, method A can also apply the HEMU-430X train.
Keywords
Track Geometry; Track Irregularity; Track Geometry Measuring System; Vehicle Vibration; Inertial Navigation System;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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