• 제목/요약/키워드: Maintenance Plan

검색결과 1,045건 처리시간 0.028초

시변 고장률을 이용한 배전계통 유지보수 우선순위 결정 (Deciding the Maintenance Priority of Power Distribution System using Time-varying Failure Rate)

  • 이희태;문종필;김재철
    • 대한전기학회논문지:전력기술부문A
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    • 제55권11호
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    • pp.476-484
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    • 2006
  • The failure prediction and preventive maintenance for the equipment of nuclear power plant area using reliability-centered maintenance have been grown. On the other hand, the maintenance for power distribution system consists of time-based maintenance mainly. In this paper, the new maintenance algorithms for power distribution system are developed considering reliability indices. First of all, Time-varying failure rates are extracted from data accumulated at KEPCO using exponential distribution function and weibull distribution function. Next, based on the extracted failure rate, reliability for real power distribution system is evaluated for applying the effective maintenance algorithm which is the analytic method deciding the maintenance point of time and searching the feeder affecting the specific customer. Also the algorithm deciding the maintenance priority order are presented based on sensitivity analysis and equipment investment plan are analyzed through the presented algorithm at real power distribution system.

MAINTENANCE PERFORMANCE EVALUATION OF THE BUILDINGS IN THE DESIGN PHASE

  • Hakyu Baeck;Chansik Lee
    • 국제학술발표논문집
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    • The 1th International Conference on Construction Engineering and Project Management
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    • pp.1138-1143
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    • 2005
  • As the importance of building maintenance is being emphasized, studies regarding the efficient building maintenance focus on the evaluation of the maintenance plan, implementation and its cost only while the evaluation of the maintenance performance is nearly ignored. At this point when the importance is placed on the performance design we need to have methods to improve maintenance performance of the buildings in Design Phase. The purpose of this study was to set the design evaluation items to improve the maintenance performance of the buildings. Through the review of the existing literature, we set the concept of the maintenance performance and suggested evaluation items to evaluate the maintenance performance through the analysis of domestic and overseas certification and design guidelines.

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항공정비조직의 유연성문화 연구 (A Study on Flexible Culture in Aviation Maintenance Organization)

  • 김천용
    • 한국항공운항학회지
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    • 제23권1호
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    • pp.1-7
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    • 2015
  • The aircraft maintenance demands a lot of aviation mechanics in urgent according to the high season and low season in seasonal demand adjusted, unplanned maintenance work such as AD (airworthiness directives) and troubleshooting of aircraft system fault. The advent of Super-Large Aircraft such as A380 with aircraft materials, power plant and avionics systems which were not in previous models must be expected to increase the complexity of the aircraft maintenance system. This study is intended to propose the development plan for formation of positive flexibility culture in aircraft maintenance organization through the review of previous research on flexibility culture of organization and through empirical research for bureaucratic and poor factors by the evaluation of flexibility culture level of domestic aircraft maintenance organization.

도시철도 차량을 위한 예방보전시스템 개발 (Development of the Preventive Maintenance System for an Urban Transit)

  • 하성훈;장석화;유우식
    • 산업경영시스템학회지
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    • 제30권1호
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    • pp.1-7
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    • 2007
  • This paper addresses a the maintenance system based on the concept of RAMS (Reliability, Availability, Maintenance, Safety) for the effective maintenance of the urban transit. A systematic approach for developing a cost-effective maintenance strategy based on the component reliability of the system in question is performed according to the following steps : definition of function, functional failures of the systems, construction of RBD (Reliability Block Diagram), and the calculation of reliability indices. The developed preventive maintenance system generates maintenance plan and repair request based on the analysed RAMS data of components and maintenance experience.

공동주택 지하구조물의 누수 균열 진단 및 보수방법 표준 매뉴얼 - 유지관리 점검 - (Standard Manual for the Diagnosis and Repairing Leakage Cracks of Underground Structures in Apartment Housing - Maintenance Inspection -)

  • 김수연;이정훈;이승진;장덕배;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.343-344
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    • 2018
  • This study proposes a standard method of diagnosis and repair to prevent and maintain the problem of durability deterioration caused by leakage cracks in apartment basement structures in Korea. Following the announcement of the previous maintenance plan section, this is the second part of the study, focusing on inspection of methods for diagnosing and repairing leakage cracks in apartment basement structures. In this thesis, the matters required for the procedures, types, times and equipment of the inspection plan and the inspection methods, records, and decisions required for the actual inspection are described.

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도시철도 시설물 점검 방법 및 주기 개선방안 - 궤도시설물 점검 중심으로 - (A Improvement Plan for Inspection Method about the Urban Railway Facilities and Cycle)

  • 문득수;장병철;구자경;이태식
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2008년도 춘계학술대회 논문집
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    • pp.243-248
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    • 2008
  • Seoul subway is an safety, quick, and clean public transportation to secure citizens safety. One of the most important elements of train is optimizing railroad function and need to conform railroad inspection for function maintenance. Railroad is the most biggest part of the railroad facility and it is a structure which requires sustainable maintenance. The purpose of study is to improve domestic metropolitan railroad facility inspection method and period. For this, we refer documents about present roving method, roving members and period of railroad roving. In addition, analyzed problems of railroad roving investigation method and period by examining the type and standards of railroad investigation and interviewing experts. By this, we analyzed improving plan and expectations of railroad maintenance and repair operation.

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노후 아파트 공용설비부문의 하자발생과 보수비용 분석에 관한 연구 (A Study on the Analyses of Defect Occurrences and its Repair Costs in the Public Equipment of an Deteriorated Apartment House)

  • 전규엽;조극래;홍원화
    • 한국주거학회논문집
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    • 제14권4호
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    • pp.11-19
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    • 2003
  • This study intends to predict prospective defects and establish the plan of Preventive Maintenance through research and analysis of defect occurrences and their repair costs in the public equipment of ‘H’ apartment house from 1998 to 2001. According to results of the analysis, more than 90% of defects and their repair costs for 4 years of the building have occurred in heating, hot water and water supply equipments. In case of specific classification in each equipment, more than 60% of defects were found at hot water pipes and heating pipes, and their repair costs covered more than 60% of the total defect costs. After two repairs by ‘Preventive Maintenance’ had been performed in the year 1998, total defects and defects of each equipment each yew have increased in number from 1999 to 2001. But total repair costs and repair costs of each equipment have not increased as time has gone by, because repair costs have relationship with the price of materials and labor, the part of defect and the scale of repair.

도시철도차량 유지보수체계 구축방안 연구 (The Layout Plan for Maintenance of Urban Transit Vehicle)

  • 이우동
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.1177-1178
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    • 2007
  • There is a possibility of saying that the accident of urban transit vehice or deficit operation is caused by the m.aintenance. urban transit vehice where the efficiency is good though does the time passes and it becomes old anger and does not display that efficiency not only the cause of formation accident does becomes. The breakdown about under occurring before getting up an accident, appropriately shifting the parts is to a maintenance very the pending question fact which is important is a possibility of doing. From there is by an urban transit vehice, Mauntenance in reliability base grudge is a tool of confirms an improvement point and the place where it judges. From the research which it sees will present about technical development plan of Maintenance.

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효율적인 GIS 데이터 유지관리 방안의 개발에 관한 연구 - 지방자치단체를 중심으로 - (A Study on the Development of an Effective GIS Data Maintenance Plan -Focused on the Applications for Municipalities)

  • 김성훈
    • 대한공간정보학회지
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    • 제13권1호
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    • pp.89-96
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    • 2005
  • 최근 도로 및 지하시설물 관련 GIS시스템 구축이 각 지방자치단체들에서 하나, 둘씩 완료되어감에 따라 해당 지방자치단체들의 관심은 기존의 GIS시스템 구축으로부터 이제 1차 완료된 GIS시스템의 유지관리로 서서히 변화되고 있다. 이와 같은 현상은 시간이 지날수록 더욱 증대할 것이며 따라서 해당 지방자치단체들은 기 구축된 GIS시스템을 유지관리하기 위한 여러 관점에서의 지침 및 지원이 필요한 시점이다. GIS시스템의 유지관리란 주제는 그 영역이 상당히 광범위하고 그 시기적인 필요성 또한 일부 앞서 GIS시스템을 구축한 지방자치단체들로부터 크게 공감되고 있는 것으로 조사되었다. 그럼에도 불구하고 현재까지 GIS시스템의 유지관리와 관련되어 체계적으로 수행된 연구는 양적으로나 질적으로 매우 미비한 상황으로 파악되었으며 이에 본 연구는 GIS시스템 유지관리란 주제를 체계적으로 접근하기 위한 시도의 일환으로 그중 가장 근본적인 요소라고 판단되는 GIS데이터 유지관리의 차원에서 우선 접근하고자 시도되었다. 이를 위해 조사된 지방자치단체들의 GIS시스템 유지관리 관련 현황이 체계적으로 정리되었고 이를 분석하여 GIS데이터 관련 문제점 유형 및 지방자치단체의 해결발안을 도출하였다. GIS데이터는 기본도와 지하 시설물도로 나누어 각각 접근 및 분석되어 지방자치단체를 위한 효율적인 GIS데이터 유지관리방안을 제시하였다.

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수질오염 총량관리계획과정의 오염부하량 할당에 관한 연구 - 경기도 광주시를 사례로 - (A Study on the Allocation of Permissible Water Pollution Load in the Total Water Pollution Load Management Plan)

  • 김시헌;임재명
    • 환경영향평가
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    • 제14권5호
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    • pp.337-346
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    • 2005
  • Pollution load allocation can likely be much controversial, which is essential to formulate the total water pollution load management plan. Existing rules(or guidances) in Korea, can provide no specific criteria for load allocation. Therefore, this paper studied(comprehensively) possible standards how or why to choose any particular allocation method, which was applied in the Gwangju City's load allocation for the satisfaction of set water quality goal. This load allocation is basically focused on the load reduction of domestic wastewater rather than industrial wastewater, because the land-use is strictly regulated and larger sources of pollution are few in the Gwangju City. This paper recommends the city to increase the capacity of sewage treatment plants, promote sewerage maintenance, and set higher effluent standards.