무기체계의 상세 설계단계 정비도 예측을 위한 FD&I 산출방안 연구

Abstract

Purpose: This study investigated MIL-HDBK-472 Procedure V and suggests the method for deriving FD&I, a key parameter for applying Method B. The study also describes the process for calculating the mean time repair (MTTR) of the system by applying Method B. Methods: Of the maintenance procedures Procedure I-V presented in MIL-HDBK-472, Procedure V is divided into Method A and Method B as applicable at all stages of maintenance, and FD&I elicitation is essential for applying Method B in the detailed design phase. Results: The FD&I elicitation process was presented, and the MTTR value was applied with Method A considering an ambiguous factor(S) called the ability to isolate faults during the initial design phase was compared by the MTTR value applied with Method B. Conclusion: In order to predict the degree of maintenance at the detailed design stage during system development, Method B of the Procedure V used by the U.S. military is required, it is possible to improve the predictive accuracy of maintainability through comparison with Method A when it is applied in the initial design phase.