A STUDY ON THE ANALYSIS OF RELIABILITY GROWTH FOR THE DRIVERLESS RUBBER-TIRED K-AGT SYSTEM

초록

Korea Railroad Research Institute (KRRI) has developed the driverless rubber-tired AGT system from 1999 to 2005, which is now on test for its reliability test on the test line in Korea. This paper is concerned with the recent development of the K-AGT system and its reliability growth test which is now being applied in the test line. Main characteristics of developed system is a rubber-tired wheel AGT with 750 VDC power supply, and has a driverless operation control system based on CBTC. The test train is composed of 2 cars and max. speed is 70 kph. The objective of this study is to analyze a reliability growth for the K-AGT System based on the Duane and NHPP model using KRRI’s K-AGT Reliability DB program and ReliaSoft’s RGA software. We introduce the characteristics of the K-AGT system and reliability growth models in details and describe how reliability growth method is applied to K-AGT system. The results of the analysis show that the reliability of the K-AGT system attained targeted reliability level.