• 대한안전경영과학회지
• /
• 제9권6호
• /
• pp.39-46
• /
• 2007

In this paper we discuss the problems related with the existing electrical safety system that is influenced by all the socio-technical factors including the electrical safety law, government organizations, and their practicing rules and regulations. Sometimes intangible practices also affect the safety issues. It is our intention to incorporate all those factors effectively and systematically in improving the electrical safety system. Since, the problem in nature is so complex, an approach based on the systems engineering (SE) method could be a good candidate. Specifically, as a first step of the SE process we performed the requirements analysis of all the factors mentioned above and some recommendations from the experts in the field. In the work environment utilizing a computer-aided SE tool, the requirements are verified and managed efficiently although the data base is complicated in general in tracking the changes. Next, by analyzing the verified requirements, a functional architecture is developed to achieve an improved electrical safety system. We also did the reverse engineering of the existing electrical safety system to explore potential problems there. The result can also help improve the existing one. Overall, a systematic approach to constructing electrical safety system based on SE is proposed for the first time in this paper. Note that the method described here can be adopted in the study of other safety systems.

• 시스템엔지니어링학술지
• /
• 제7권1호
• /
• pp.53-56
• /
• 2011

Configuration management plays a key role in systems engineering process for any project from earlier stage of development. It consists of five major activities, ie., configuration management planing, configuration identification, configuration control, configuration status accounting and configuration verification and audit, and is essential to control system design, development and operation throughout entire life cycle of the system development. And it is directly associated with other part of systems engineering management process, ie., technical data management which provides traceability of important decisions and changes during development. In this paper, we describe how to apply CASE(Computer-aided Systems Engineering) tool-Cradle for the configuration management to achieve effectiveness of Technical Management process.

• 시스템엔지니어링학술지
• /
• 제12권1호
• /
• pp.89-103
• /
• 2016

Due to safety of the plant, it became very clear the importance of study occurrence reactor coolant system (RCS) issues specially the primary water stress corrosion cracking (PWSCC). The Systems Engineering (SE) approach is characterized by the application of a structured engineering methodology for the design of a complex system or component. Robotic devices have been used for internal inspection, maintenance and performing remote welding and inspection in high-radiation areas. In this paper, PWSCC overview and inlay and over lay welding methodology introduced, concept of robotic device that can be inserted into the piping via Steam Generator (SG) main way to access to primary piping of pressurized water reactor (PWR) is developed based on SE methodology. A 3D model of the inspection system was developed along with the APR1400 (Advanced Power Reactor)reactor coolant systems (RCS) and internals with virtual 3D simulation of the operation for visualization to prove the validity of the concept.

• 시스템엔지니어링학술지
• /
• 제8권1호
• /
• pp.51-62
• /
• 2012

The System Engineering(SE) and the Earned Value Management System(EVMS), as parts of the scientific project management methodology, have been applied to Surion Helicopter R&D Program. The concept and application process of SE methodology, requirements management and applications output by DOORS program are described in this study. The concept and application process of EVMS, analysis results of schedule/cost variance for Surion RF equipment are also discussed in this study. Though the Surion R&D program is still on-going, it is found that the measures of effectiveness of SE and EVMS applications are verified.

• 시스템엔지니어링학술지
• /
• 제12권1호
• /
• pp.25-40
• /
• 2016

The Systems Engineering (SE) approach is characterized by the application of a structured engineering methodology for the design of a complex system or component. In this study, the SE methodology is used to design a nondestructive inspection system for Bottom Mounted Instrumentation (BMI) nozzles. We developed a system that enables nondestructive inspection of BMI nozzles during regular refueling outage without removing the reactor internals. A special ultrasonic (UT) probe is introduced to scan and detect cracks within the weld region of the nozzle. A 3D model of the inspection structure system was developed along with the reactor pressure vessel (RPV) and internals which permits a virtual 3D simulation of the operation to check the design concept and effectiveness of the system and to provide a good visualization of the system. This approach allows for a virtual walk through to verify the proposed BMI nozzle inspection system.

• 시스템엔지니어링학술지
• /
• 제8권1호
• /
• pp.9-19
• /
• 2012

The Light Rail Transit Project is a large scaled project which takes several years in building a system. After construction, LRT system is operating for several tens of years. For these characteristics, the right application of systems engineering to LRT project greatly effects the project success. In this paper, we present systems engineering application model to LRT project i.e. SELRT which include systems engineering technical process, core technology management process, project support process. SELRT also has a module for the exchange of outputs in SE tool and PM tool. Systems engineering processes in SELRT mainly base on ISO/IEC 15288. In future, we expand the range of SE processes and improve the usability in SELRT. We expect that this model will contribute to improve the efficiency in LRT project and to success the LRT project.

• 시스템엔지니어링워크숍
• /
• 통권4호
• /
• pp.95-100
• /
• 2004

A System engineering is a management technique that simultaneously interates all essential acquisition activities through the use of multidisciplinary teams to optimize the design, manufacturing, business, and supportability processes. This work describes two case studies of the defence acquistion prigram applied SE. It is presented a general understanding of SE and perspective of SE applications for defense acquisition process.

• 시스템엔지니어링워크숍
• /
• 통권7호
• /
• pp.67-69
• /
• 2006

• 시스템엔지니어링워크숍
• /
• 통권7호
• /
• pp.70-74
• /
• 2006

• 공학교육연구
• /
• 제9권2호
• /
• pp.52-70
• /
• 2006

다학제 및 학제간의 다양한 지식과 실질적인 경험을 바탕으로 진화해온 특수 전공분야로서 시스템 엔지니어링은 오늘 날 대형 복합시스템의 개발에 필수적인 분야이다. 컴퓨터의 발달과 분석적 해석기법의 발달로 인해 사회적 요구는 더욱 다양하고 복잡해 졌다. 이러한 변화의 대안으로 대두하고 있는 분야가 시스템 엔지니어링이다. 시스템 엔지니어링은 '고객의 필요를 만족하는 통합된 시스템 생명주기의 균형 잡힌 시스템의 해결책을 개발하고 검증하는 학제간 프로세스이며, 문제정의, 대안조사, 아키텍팅, 시스템 모델, 통합, 시스템 개발 및 성능평가를 하향식, 포괄적이며 반복적으로 문제를 풀어나가는 프로세스이다. 본 논문의 목적은 시스템 엔지니어링에 대하여 소개하고 외국과 한국의 교육현황을 조사하여 해외 시스템 엔지니어링 교육의 사례연구를 통해서 우리나라의 공학교육 발전을 위한 시스템 엔지니어링 교육발전 방안을 제안하려고 한다.