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http://dx.doi.org/10.14346/JKOSOS.2012.27.4.115

Life Analysis of Relays based on Life Prediction Method  

Shin, Kun-Young (Department of R/S System, Graduate School of Railroad, Seoul National University of Science & Technology)
Lee, Duk-Gyu (Seoul Metropolitan Rapid Transit Corporation)
Lee, Hi Sung (Department of R/S System, Graduate School of Railroad, Seoul National University of Science & Technology)
Publication Information
Journal of the Korean Society of Safety / v.27, no.4, 2012 , pp. 115-120 More about this Journal
Abstract
In order to establish preventive maintenance standards through analysis & reliability prediction of about 60,000pcs of 20kindsof relays and contractors used for Seoul subway trains, several life prediction methodologies were applied. Firstly, Occurrence, Severity, Detection were defined and predicted by applying operation characteristic of EMU to the number of actions of relays & contactors which the manufacturers generally offer as the life cycle data. Secondly, failure distribution and average life of parts were analyzed through interpretation of field data based on a lot of experience which had built up in the field for a long time. Finally, using the 217PLUS standard as a reliability prediction program, comparative analysis of use reliability and inherent reliability was done through reliability prediction at the part level and system level.
Keywords
life analysis; reliability prediction; RELEX; RCM; relay; operation characteristic;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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