| Title |
Reliability improvement of Points System using FMECA |
| Authors |
박건원(Gunwon Park) ; 최규형(Kyuhyoung Choi) |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.5.678 |
| Keywords |
FMECA; Points; RCM; Railway Signals |
| Abstract |
This study is aimed at optimizing through preventive maintenance (PM) techniques, such as analyzing failure modes using the FMECA technique for effective maintenance of the points system and suggesting ways to structurally solve problems. is a study about Analysis of failure data occurred in the points system for 10 years in Seoul Metro Lines 1 to 8 was performed. Based on this, 10 high risk items with the highest criticality of the criticality matrix for the failure mode of the points system were selected, and as a result of applying the RCM processor and preventive maintenance (PM) technique, the number of points failures decreased from 6.4 cases/year to 3.4 cases/year. It was analyzed that it decreased by 46.9% per year, and the cumulative failure recovery time decreased significantly by 65.8% from 417 minutes/year to 143 minutes/year. |