상태기반 보전 방법에 대한 고찰 및 사례 소개 = A Study on Several Aspects of Condition Based Maintenance(CBM) Approach and Introduction of Relevant Case Studies

다국어 초록 (Multilingual Abstract)

In the case of a high-valuable asset, the O&M(Operation and Maintenance) phase requires heavy charges and more efforts than the installation(construction) phase, because it has long usage life and any accident of an asset during this period causes catastrophic dam-age to an industry. Recently, with the advent of emerging ICTs(Information Communication Technologies), we can get the visibility of asset status information during its usage period. It gives us new challenging issues for improving the efficiency of asset operations. One issue is to implement the CBM(Condition Based Maintenance) approach that makes a diagnosis of the asset status based on wire or wireless monitored data, predicts the asset’s abnormality, and executes suitable maintenance actions such as repair and replacement before serious problems happen. In this study, we have addressed several aspects of CBM approach: definition, related international standards, procedure, and techniques throughout the survey of previous works. Furthermore, based on several CBM case studies, we propose the closed-loop CBM procedure. In addition, we have discussed several issues considered when implementing CBM with the future trend of maintenance technology.

국문 초록 (Abstract)

고가의 산업용 자산(예: 기계설비, 산업용 판매 제품 등)의 경우, 자산의 수명이 길어지고, 핵심자산의 고장으로 인해서 입을 수 있는 손실이 매우 크기 때문에 자산의 구입 설치 단계보다 운용 및 유지보수 단계(Operation & Mainte-nance)에 점점 더 많은 노력이 필요하게 되었다. 최근 들어 첨단 정보통신기술의 급속한 발전에 힘입어, 자산의 사용기간 동안에 자산 상태 정보에 대한 가시성을 확보할 수 있게 되었다. 이러한 정보의 가시성을 이용하여 자산 운용의 효율화를 도모하기 위해 기업들이 많은 노력들을 쏟아붓고 있다. 예를 들어, 유지보수 정책 관점에서는 산업용 유무선으로 수집되는 자산의 상태 데이터를 바탕으로 상태를 분석하고 고장 시점을 미리 예지하여 적절한 시점에 유지보수를 함으로써 손실을 최소화할 수 있는 상태기반 보전 방법, 즉 CBM(Condition Based Maintenance)이 재조명받고 있다. 본 연구에서는 CBM의 정의, 절차, 관련 국제 표준, 기법들에 대한 기존 연구의 내용을 정리해 보고, 저자들이 수행한 CBM 사례 연구들의 내용을 바탕으로 Closed-loop CBM 절차를 제시한다. 또한, CBM 적용시 고려해 볼 사항들에 대한 논의와, 미래 유지보수 기술에 대해 언급한다.

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