Browse > Article

Field Reliability Analysis of S-Bond of AF Track Circuit for Automatic Train Control System  

Choi, Kyu-Hyoung (서울산업대 철도전기신호공학과)
Rho, Young-Whan (서울산업대 철도전기신호공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.2, 2009 , pp. 308-313 More about this Journal
Abstract
This paper presents a reliability analysis of S-bonds for AF track circuits, which detect train movement and transmit a speed control signal to the train. Field survey shows that S-bonds are exposed to very large vibrations transferred from rail, and suffer from frequent failures when they were installed on ballasted track. We collected the time-to-failure data of S-bonds from the maintenance field of Seoul metro line 2, and made a parametric approach to estimate the statistical distribution that fits the time-to-failure data. The analysis shows that S-bonds have time-to-failure characteristics described by Weibull distribution. The estimated shape parameter of Weibull distribution is 1.1, which means the distribution has constant failure rate characteristics like exponential distribution. The reliability function, hazard function, percentiles and mean lifetime are derived for maintenance support.
Keywords
S-Bond; AF Track Circuit; Reliability Analysis; Weibull Distribution; Mean Lifetime;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Suzuki, K., 'Estimation of Lifetime Parameters from Incomplete Field Data', Technometrics, vol. 27, no. 3, pp. 263-271, 1985   DOI   ScienceOn
2 Minitab, 'MINITAB User's Guide #1: Data, Graphics, and Macros', 2000
3 Minitab, 'MINITAB User's Guide #2 : Data Analysis and Quality Tools', 2000
4 Nelson, W., 'Applied Life Data Analysis', Wiley Series in Probability and Mathematics, 1982
5 김종기 외 7인, '신호보안체계 최적 구축 방안 개발', 한국철도기술연구원 연구보고서,2002.3.
6 Ushakov, I. G., 'Handbook of Reliability Engineering', John Wiley and Sons, 1994
7 서근순, 'Minitab 신뢰성 분석', 이레테크, 2000
8 서울메트로 인재개발원, '신호제어시스템 I', 서울메트로. 2000
9 Sinclair, C. D. Spurr, B. D., 'Approximations to the Distribution Function of the Anderson-Darling Test Statistic', Journal of the American Statistical Association, vol. 83, no. 404, pp.1190-1191, 1988   DOI   ScienceOn
10 Heummer, K. 'Interference-free Track Vacancy Detection', International Conference on Mainline Railway Electrification, York. UK, pp. 47 -52, 1999
11 Jauw, J. Vassiliou, P., 'Field Data is Reliability Information : implementing an Automated Data Acquisition and Analysis System', IEEE Proceeding on Anual Reliability and Maintainability Symposium', L.A., USA, pp. 24-27, Jan. 2000
12 Lanczos, C.,'A Precision Approximation of The Gamma Function', Journal of for Industrial and Applied Mathematics, Series.B, vol. 1. PP. 86-96, 1964   DOI   ScienceOn
13 D' Addio, G, Ferrari, P. Masiscotti, A. Pozzobon, P., 'Integrated Modelling of Audio Frequency Track Circuits', IEE Conference EMC New york 99, Publication no. 464, pp. 101-105, 1999