• Title/Summary/Keyword: Systems Engineering(SE)

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Systems Engineering Plan for the Development of Ultra-High-Speed Maglev Train System (초고속 자기부상철도 개발을 위한 시스템엔지니어링 계획서)

  • Lee, Young-Hoon;Min, Sung-Ki
    • Journal of the Korean Society of Systems Engineering
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    • v.5 no.1
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    • pp.21-32
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    • 2009
  • The systems engineering (SE) process shall be applied to the project for successful development of ultra-high-speed (UHS) Maglev train system which is one of very large and complex systems. It is important to abolish technology differentials from the advanced developers such as Germany, Japan, etc. and to ensure discriminatory competitiveness of the application of systems engineering process for the development of the system based on appropriate concepts and requirements. General operation concept and stakeholder's requirements of UHS Maglev train system must be elicited with system concept for initiating the project. The management plan should be devised for all sorts of systems engineering activities of risk management, performance management, lifecycle cost management, etc. This paper would support to establish the systems engineering management plan (SEMP) for the program of UHS Maglev train system development with associated documents.

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Systems Engineering Approach to Reengineering of YGN 3&4 Safety Depressurization System Retrofit Design (영광3,4호기 안전감압계통 추가설비 설계최적화를 위한 시스템엔지니어링 적용연구)

  • Choi, Mun Won;Kim, Kyu Wan;Han, Ki In
    • Journal of the Korean Society of Systems Engineering
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    • v.11 no.1
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    • pp.1-7
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    • 2015
  • The purpose of this paper is to present the results of reengineering of the YGN 3&4 (Yonggwang Nuclear Power Plant, Units 3&4) SDS (Safety Depressurization System) retrofit design and to make recommendations for the improvement in design and design procedure implementing the Systems Engineering (SE) process. YGN 3&4 is a basic model for OPR1000 (the Korean standard 1000 MWe plant). The basic model, herein, represents the reference plant for the OPR1000 development. In the middle of the YGN 3&4 construction, the Korean Nuclear Regulatory Body requested a retrofit of this plant with a means to rapidly depressurize the plant in conformance with a severe accident mitigation requirement. For the reengineering of the SDS in YGN 3&4, V-model and functional and physical architectures have been developed. A SE decision making method has been used for the selection of SDS valves. Finally, recommendations have been made to improve OPR1000 design for the improved operation and enhanced safety.

차세대 고속전철 시스템 시험검증 체계 구축 및 적용

  • Choe Jong Min;Yu Il Sang;Kim Yeon Tae;Park Yeong Won
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2002.05a
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    • pp.1079-1084
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    • 2002
  • Systems engineering technology development program for Korea next-generation high-speed railway(KNHR) system in progress is a national large-scale system development program that is not only a large-size and complex but also multi-disciplinary in nature. Using the RDD-IOO, a systems engineering tool, the KNHR program can establish requirements traceability and development process management in the course of development. This paper presents the results from a computer-aided systems engineering application to KNHR system technology development project over the three years of activities. The traceability among the system design database in the vertical direction of SE process, as the results of the first year and the second year research was accomplished. The database in both the requirement management domain and the project management domain was developed and set up the traceability between them in the horizontal direction of the SE process in the V model as the results of the third year research. Therefore, KNHR design database was built to support the life-cycle management of the system as well as to reuse the knowledge in future programs. In the following development phase, this database will be utilized to accomplish the test and integration activities providing a baseline database. The outcome of the study contributes to the establishment of the model-based systems engineering approach as a best practice in the accumulation and advancement of systems engineering technology for railway system development.

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A Study on Korea Government ITA Meta-Model Tailoring for National Defense Architecture Development (국방 관련 아키텍처 개발을 위한 범정부 정보기술아키텍처(ITA)의 메타모델 조정 방안 연구)

  • Jang, Jae-Deuck;Park, Young-Won;Park, Cheol-Young;Lee, Jung-Yoon;Koo, Yeo-Woon;Kim, Yeon-Tea
    • Journal of Korean Institute of Industrial Engineers
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    • v.34 no.3
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    • pp.344-354
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    • 2008
  • The ITA meta-model descriptions being promoted by Korean government was developed to build information technology architecture for applications in public institutions. However, the application of this ITA meta-model is not easy because of the complexity and overlapping between classes and attributes which reside in the ITA meta-models. Additionally, the National Defense Architecture is planned for development using the MND-AF. Since the National Defense Architecture must align with the Government ITA for interoperability and consistency, it is crucial the differences in the meta-models between MND-AF and Government ITA must be resolved. This study presents the trade-off results between the meta-models of MND-AF and Government ITA. It also proposes a set of tailored meta-models for use with the National Defense architecture development. The tailored meta-models use an ERA (Element, Relationship, Attribute) data structure that decreases complexity and eliminates the overlapping between classes and attributes.

A Systems Engineering Approach to the Design of Steam Reforming H2 Generation System based on Natural Gas: Case of Iron and Steel making Plant (천연가스 기반 스팀 리포밍 수소 생산 시스템 설계를 위한 시스템엔지니어링 접근방법: 철강생산플랜트를 중심으로)

  • Kim, Joon-Young;Hong, Dae Geun;Suh, Suk-Hwan;Sur, Hwal Won
    • Journal of the Korean Society of Systems Engineering
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    • v.11 no.1
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    • pp.81-93
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    • 2015
  • Steam Reforming H2 Generation (SRH2G) System is a chemical process to produce hydrogen through steam reforming of hydrocarbon. Largely speaking, there are two types of materials for the SRH2G: 1) Oil and coal, and 2)Natural Gas such as shale gas. From the perspective of cost, quality (purity), and environmental burden (pollution), the latter is much more desirable than the former. For this reason, research on SRH2G using natural gas is actively carried out, and implemented and operated in the various industry. In this paper, we develop a natural gas based SRH2G system via systems engineering approach. Specifically, we first derived stakeholder requirements, followed by systems requirements and finally system architecture via a tailored SE process for plant (called Plant Systems Engineering (PSE) process) based on ISO/IEC 15288. The developed method was applied to iron and steel plant as a case study. Through the case study, by the SE approach, we were convinced that a successful system satisfying stakeholders' requirements within the given constraints can be developed, verified and validated.

A Systems Engineering Approach to Designing Continuous Casting System in Iron and Steel Making Plant (시스템 엔지니어링 방식에 의한 철강 연속 주조 시스템 설계)

  • Shin, Kee-Young;Hong, Dae Geun;Yoon, Soo Cheol;Suh, Suk-Hwan
    • Journal of the Korean Society of Systems Engineering
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    • v.10 no.2
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    • pp.21-31
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    • 2014
  • Recently, global market competition of iron and steel products is ever increasing due to over-supply from increased number of industries in rapidly growing countries, such as China, Brazil, and Indonesia. To occupy the big market, major industries are trying to develop high quality, high performance steel products via developing a new iron and steel making process. In other words, development of a new and innovative steel plant is a key to cope with the tough situation. Design and development for the life cycle of iron and steel making plant is very much complex and multi-disciplinary. In this paper, Plant Systems Engineering (PSE), a tailored SE process for industrial plant based on ISO/IEC 15288 is used for the design of Continuous Casting Process (CCP) Plant system. The CCP is a crucial process in steel making plant, whose design technology is occupied by the advanced foreign companies. For the sake of increasing engineering capability for the design of CCP, we applied PSE Process for the renovation of the existing CCP Process. Through the study, we were convinced that the applied method can be used for other plant systems, and SE is really the way of thinking, design, and development of modern complex and multi-disciplinary systems where high risk factors are present throughout the whole life cycle.

Chalcogenide Ge-Sb-Se Optical and Crystallization Characteristics for Basic a Planning Aspheric Lens (비구면렌즈 설계를 위한 칼코게나이드 Ge-Sb-Se 광학계 및 결정화 특성 연구)

  • Myung, Tae Sik;Ko, Jun Bin
    • Korean Journal of Materials Research
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    • v.26 no.11
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    • pp.598-603
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    • 2016
  • The recent development of electro-optic devices and anticorrosion media has led to the necessity to investigate infrared optical systems with solid-solid interfaces of materials that often have the characteristic of amorphousness. One of the most promising classes of materials for those purposes seems to be the chalcogenide glasses. Chalcogenide glasses, based on the Ge-Sb-Se system, have drawn a great deal of attention because of their use in preparing optical lenses and transparent fibers in the range of 3~12 um. In this study, amorphous Ge-Sb-Se chalcogenide for application in an infrared optical product design and manufacture was prepared by a standard melt-quenching technique. The results of the structural, optical and surface roughness analysis of high purity Ge-Sb-Se chalcogenide glasses are reported after various annealing processes.