• Title, Summary, Keyword: Total Life Cycle System Management

Search Result 95, Processing Time 0.041 seconds

Analysis of Life-Cycle Cost for Urban Transit System using RAM (RAM을 고려한 도시철도시스템의 수명주기비용 분석)

  • Han, Seok-Youn;Hong, Soon-Ki;Ha, Chen-Soo
    • IE interfaces
    • /
    • v.18 no.4
    • /
    • pp.477-484
    • /
    • 2005
  • This paper is concerned with the life-cycle cost(LCC) of the urban transit system which was developed by KRRI and is now under test in Gyeongsan, Korea. Its reliability, availability and maintainability(RAM) were analyzed. LCC is the core part of analyzing the total cost of acquisition and ownership of a system. LCC analysis of a system is the most effective when it is applied in the it's early design phase. In this paper, we present IEC 60300-3-3(Life Cycle Costing) in detail and propose how to apply LCC in assessing the urban transit system according to RAM process. This case study demonstrates that reliability management system is very effective in reducing the operating cost of subway corporations in Korea.

PLM System Development for Data Management of KSLV-II Program (한국형발사체개발사업 정보 관리를 위한 PLM 시스템 구축)

  • Kwon, Byung-Chan;Park, Chang-Su;Kim, Keun-Taek
    • Journal of Aerospace System Engineering
    • /
    • v.8 no.2
    • /
    • pp.49-54
    • /
    • 2014
  • The main purpose of Korea Space Launch Vehicle II(KSLV-II) Program is to develop a domestic launch vehicle that can deliver a 1.5ton class application satellite into a Low Earth Orbit(600~800km). The data management is an essential factor in systems engineering for success of large-scale complex systems development, and it systematically manages the information and technical data for the total life-cycle of a system. In this paper, data management policies and processes on KSLV-II program are presented, and product life-cycle management system for KSLV-II program is also presented.

Analysis of Economic Life Cycle for Hydro-Generator Based on Annual Equivalent Cost Method (연간등가비용법을 이용한 수력발전기의 경제적 수명주기 분석)

  • Lee, Sung-Hun;Chang, Jeong-Ho;Kim, Jin-O;Lee, Heung-Ho
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.60 no.11
    • /
    • pp.1993-1999
    • /
    • 2011
  • Today, the power utilities is setting on the slow load growth and the aging of power equipment, and then could spend the efforts on the stability of system performance. Asset management may be defined as the process of maximizing corporate profit by maximizing performance and minimizing cost over the entire life cycle of power equipment. Therefore, asset management is great way to fulfill the economic investment and the stability of system performance. This paper presents the application of effective asset managem ent from an economic perspective. A proposed method is considering the life cycle analysis using life cycle cost methodology for hydro-generator during the total life cycle. The life cycle cost methodology include a way to calculating maintenance and operating costs. The proposed method will be expected to play an important role in investment decision making considering economic evaluation.

A Study on the Improvement of Public Facility Management System Using Life-cycle Management (Life-cycle Management를 활용한 공공시설 유지관리 시스템 개선방안)

  • Jeon Ick-Sung;Shon Jeong-Rak;Kim Kyung-Suk;Kim Jae-Jun
    • Korean Journal of Construction Engineering and Management
    • /
    • v.5 no.2
    • /
    • pp.55-63
    • /
    • 2004
  • A building structures was used the facility management phase through $planing\cdotdesign\cdotconstruction$. phase. building's length of life was shorter than its physical length of life, because of the lack of law and institution, the lack of related agencies' preparation and owner's preparation. Also, considering the construction life-cycle, the facility phase accounted for $70\%$ of whole official lift, therefore, it needed to be opposed to systemic facility management. Current facility management system practically managed the defect of facility and almost never communicated between the other phase. In the side of policy, domestic law, institution, and policy related to building structure focused built-up market. and then the management of existing facilities was not consolidated efficiently. The purpose of this study was to suggest the direction of facility management construction for managing, utilizing, and operating public facilities, moreover, to study the direction of current facility management system improvement corresponding to total computer integrated construction system under government agencies.

Exploration of Life-cycle Management for Government R&D Program: the Case of Preliminary Feasibility Study on R&D Program (국가연구개발사업의 전주기 관리방안 탐색: 연구개발 부문 예비타당성조사 제도를 중심으로)

  • Ahn, Sang-Jin;Park, Eun-Ji;Lee, Yoon Been
    • Journal of Korea Technology Innovation Society
    • /
    • v.17 no.1
    • /
    • pp.124-145
    • /
    • 2014
  • Market failure occurs when Pareto efficiency is not achieved through market mechanism. In order to solve this problem, government intervene market; paying great attention to the optimum state of resource allocation. However, as the size of government investment in R&D goes up, many professionals emphasize the importance in efficient management system. This work is the result of exploratory study to look into life-cycle management of governmental R&D program. Literature reviews and empirical research on governmental R&D programs elicit improvements for effective life-cycle management of governmental R&D program as follows: consistent discrimination between capital expenditure and recurring expenditure, dual management system by spending properties, implementing total cost management system in capital expenditure, and discrimination between preliminary feasibility study with confirming total program cost in recurring expenditure.

C4I Maintenance Priority Decision using Maintenance Metric

  • Kim, Kiwang;Kang, Dongsu
    • Journal of the Korea Society of Computer and Information
    • /
    • v.22 no.12
    • /
    • pp.145-153
    • /
    • 2017
  • Systemic management is required at each phase of the C4I system life cycle to achieve information advantage in the battlefield through stable operation of the C4I system under the NCOE. In particular, the maintenance phase is the longest period of the C4I system life cycle, and it is easy to utilize and analyze data such as faults that occur during system operation. However, according to the previous research, the maintenance is evaluated as a phase in which the definition and management of comprehensive indicators are insufficient compared to other phase. In this paper, we propose the method of C4I Maintenance Priority decision using Maintenance metric. As a result of modifying the Naval Tactical C4I System's preventive maintenance cycle according to the priority, the total number of faults is reduced and the maintenance efficiency is improved.

An Analysis of Financial Statement Among Urban Households Based On a System Approach (체계론에 기초한 도시가계의 재정상태 분석)

  • 양정선
    • Journal of the Korean Home Economics Association
    • /
    • v.30 no.1
    • /
    • pp.237-255
    • /
    • 1992
  • The purpose of this study was to investigate relations of resources and demands, family financial management and financial statement of urban households by applying a system approach. The results of this study were as follows; Saving rate had significant differences according to resources variables such as age, family life cycle, occupation of househead and housewife, ratio of employed to family member, and to demands variabels such as subjective prospect of business cycle, and value orientation, whereas total saving amount had significant differences according to resources vaiables such as age, family life cycle, educational level, percapita income, occupation of househead, type of income and to demand variable, perception of relative income. Also average monthly saving amount had significant differences according to resources vaiables such as educational level, per capita income, occupation of housewife, housing ownership, ratio of employed to family member, ratio of dependent to employed, and to demands variable, perception of relative income. The stocks had significant differences according to resources variables such as age, family life cycle, educational level, per capita income, occupation of househead, type of income, and housing ownership. Finally, real estate had significant differences according to resources variables such as age, family life cycle, educational level, percapita income, occupation of househead, type of income, housing ownership, and to demands variable, perception of relative income. Financial Statement among urban households according to family financial management had significant differences. And among all variables affecting financial statement among urban households, per capita income had the highest effect and perception of relative income was the second.

  • PDF

Design and Implementation of a Web-based Expert System for the Total Quality Management (종합적 품질경영을 위한 웹 기반 분산형 전문가시스템의 설계 및 구축)

  • 김성인;조정용
    • Journal of the Korean Society for Quality Management
    • /
    • v.32 no.2
    • /
    • pp.168-190
    • /
    • 2004
  • In these days of world-wide business environment, the characteristics of quality management are variety, specialty, decentralization, totality, etc. Thus nowadays quality management is demanded to incorporate these new concepts. We propose a web-bused distributed expert system for this purpose. The system consists of four expert systems for design of experiment, acceptance inspection, statistical process control and reliability management corresponding to design quality, incoming-material quality, manufacturing quality and usability quality, respectively, throughout the total product life cycle. Each distributed expert system at the horizontal level in the hierarchy carries out its own quality jobs independently. At the lower level in the hierarchy there is an expert system for measurement analysis to provide reliable data, and at the upper level, an expert system for total quality management to coordinate, integrate and make final decisions. A prototype has been developed and its application is presented.

A Development Plan for PMIS based on Total Life Cycle (전수명주기를 고려한 PMIS개발 방안)

  • Park, Soo-Choong;Lee, Seong-Gwon;Jung, Kye-Young;Kim, Jae-Jin
    • Proceedings of the KSR Conference
    • /
    • /
    • pp.1282-1288
    • /
    • 2011
  • Recently, the demand regarding reliability and safety of the railroad are increased as built to high-speed railway and Driverless LRT systems. Accordingly, effective management of construction projects is being applied, with the introduction and use of PMIS computerized systems. Due to the construction of railways, from the start of PMIS research planning, design, procurement, to construction and commissioning, various expertise is being carefully gathered, and by integrating it into the unified budget ideas and processes, rational, efficient, organized, and manageable financial plans are developed for the computerized system. However, the current PMIS does not take into account the life-cycle. Therefore, this study is to bring attention to the BIM smart BOM-based configuration management for life-cycle through the consideration for railway construction project management.

  • PDF

Roadmap Configuration for Technical Elements Acquisition of Military Fixed Wing Aircraft Parts PHM and Verification of Parts Selection Phase (군수용 고정익 항공기 구성품 PHM 적용을 위한 기술 요소 획득 로드맵 구성 및 구성품 선정단계 검증)

  • Kim, Geun-Yeong;Hwang, Jae-Ki;Im, Yeong-Ki;Ha, Seok-Wun
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.47 no.9
    • /
    • pp.665-677
    • /
    • 2019
  • The United States has implemented the TLCSM (Total Life Cycle System Management) to minimize the total lifecycle cost of aircraft and to improve operating availability. As a practical strategy, CBM + is required to be applied to new weapons systems. The F-35 aircraft applied PHM under CBM + concept from the development stage. In this study, we analyzed the technology trends, the level of PHM technology in Korea, and the development trends of foreign technology. Then, we analyzed the PHM technical elements and constructed the 5 phases of technical elements acquisition roadmap for military fixed wing aircraft parts PHM.