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J. KIMS Technol > Volume 22(6); 2019 > Article
Journal of the Korea Institute of Military Science and Technology 2019;22(6):824-831.
DOI: https://doi.org/10.9766/KIMST.2019.22.6.824   
A Study on the Maintainability Prediction in the Initial Design Phase between Weapon System Development
Yeoungseok Kim, Jangwok Hur
Department of Mechanical System Engineering, Kumoh National Institute of Technology
무기체계 개발간 초기 설계단계에서의 정비도 예측방안 연구
김영석, 허장욱
금오공과대학교 기계시스템공학과
Abstract
For effective development in consideration of the maintainability of the weapon system, it is necessary to understand whether the maintainability design requirements are satisfied at the early phase of development. This requires the application of an early design phase maintainability prediction process to provide opportunities for improvement. By defining the ambiguity group definition, fault isolation level, fault isolation probability, and countermeasures for faults, it was possible to predict early phase development. The MTTR of the initial design phase applying Procedure V to the artillery system was 3.46H, which is about 16 % higher than 2.98H, the MTTR using Procedure II. This is a result of system design ambiguity that has not been specified in the early phase of development.
Key Words: Maintainability Prediction, Military Handbool, Fault Isolation, Initial Design Phase, Mean Time To Repair, Replaceable Item


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