Publication
Duck-ho Shin, Eunkyung Chae, Chan-woo Park, and June-Seok Lee, “A Study on Reliability Demonstration for Railway Signaling Equipment,” Journal of the Korean Society for Railway, vol. 20, no. 4, pp. 458-465, Aug. 2017.
2017
PEEMS
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Jul. 22, 2023
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1. Authors: Duck-ho Shin, Eunkyung Chae, Chan-woo Park, and June-Seok Lee
2. Title: A Study on Reliability Demonstration for Railway Signaling Equipment
3. Journal: Journal of the Korean Society for Railway
4. Vol/no/pp: vol. 20, no. 4, pp. 458-465
5. Date: Aug. 2017
6. Abstract
: The railway signaling system, which controls the course of trains and the distance between trains, is a safetycritical system of the railway system because derailment or collision of trains can occur if unsafe failure is generated byany fault. The international standards of reliability, availability, maintainability, and safety of railway applicationsrequire that the safety of functions be guaranteed in safety critical systems; system reliability and safety are quantita-tively estimated and demonstrated by the failure rates of devices. The development of technology has accelerated thedevelopment of railway signaling systems. Existing devices, which have already been verified as to their safety, areapplied with special user requirements to reflect the new operation scenario. It is found that the reliability and safety ofthe devices are different depending on individual application. Therefore, the reliability of the railway signaling systemmust be considered while complying with the international standards; this requires that the initial failure rate be esti-mated and demonstrated using fault data gathered over several years. This paper shows a method for demonstrating theinitial estimated failure rate and suggests a fault data collection method and an overall process that is based on proba-bility.
- Aug. 9, 2023 Duck-ho Shin, Eunkyung Chae, Chan-woo Park, and June-Seok Lee, “A Study on Reliability Demonstration for Railway Signaling Equipment,” Journal of the Korean Society for Railway, vol. 20, no. 4, pp. 458-465, Aug. 2017.
- Jul. 22, 2023 Young-Seol Lim, Duck-Ho Shin, June-Seok Lee, and Kyo-Beum Lee, "Performance Analysis of a Five-leg Inverter for the Train Propulsion System," Journal of the Korean Society for Railway, vol. 20, no. 1, pp. 43-54, Feb. 2017.