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논문 기본 정보

저자정보
(과학기술연합대학원대학교) (한국철도기술연구원) (한국철도기술연구원) (한국철도기술연구원)
저널정보
한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2010년도 춘계학술대회논문집
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    초록·키워드

    This paper is focused on a simplified measurement of rail irregularity by some axle-box accelerometers for high-speed rail condition monitoring with in-service high-speed trains. Generally, the rail condition monitoring has been done by a special railway inspection vehicle with a 10m versine method. But, the monitoring method needs some expensive measurement system, and have been performed only at night due to its speed limit. In this research, a simplified measurement of rail irregularity using axle-box accelerometers is proposed to monitor the rail condition with in-service high-speed trains. The acceleration is measured by using two accelerometers on a axle-box, and stored in an on-board data acquisition system. The displacement is estimated from the acceleration data by a combination of Kalman filter and the frequency selective filter. The estimated results are compared with the measurement from a laser rail inspection system which is near the axle-box. From the comparison, the proposed method shows promise as a tool for the simplified measurement of rail irregularity at high-speed.

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      UCI(KEPA) : I410-ECN-0101-2010-326-002756676