시스템엔지니어링을 적용한 철도안전프로젝트의 시스템엔지니어링 능력성숙도 평가

최요철,이재천,Choi, Yo Chul,Lee, Jae Chon 한국시스템엔지니어링학회 2008 시스템엔지니어링학술지 Vol.4 No.2

In this paper, there is the case study which assesses the systems engineering capability maturity of the safety organization that performs the Railway Safety project using systems engineering method. To In ore effective and efficient a research and development to railway safety domain, a new research and development method can be progressively needed such as systems engineering. To assess quantitatively research of systems engineering efforts in the railway safety project, SECM(EIA/IS 731) Standard is utilized in the paper. It is by questionnaire that the capability maturity assessment is executed wit h the safety organization and staffs who performs the systems engineering activities; requirement analysis and management, interface control management. product verification and validation, and so on. As a result, the systems engineering capability level of the safety organization rises from 0 level at the initial project to 2 level after two years and all staffs give an affirmative answer about the importance and effectiveness of the systems engineering approach.

경량전철사업 이해관계자를 위한 시스템엔지니어링(SE) 교육교재 개발 및 그 활용에 관한 연구

최요철,이석정,허재훈,Choi, Yo Chul,Lee, Seok Jeong,Heo, Jae Hoon 한국시스템엔지니어링학회 2015 시스템엔지니어링학술지 Vol.11 No.2

체계적이고 효율적인 경량전철시스템 건설 및 운영을 위해 시스템엔지니어링(SE) 기술의 적용은 필수적인 활동이 되었다. 이에 따라 사업수행과정에서 다양한 요구사항과 위험요소를 적기에 식별하고 조치하는 시스템엔지니어링 인력의 전문성이 매우 중요하게 고려되고 있다. 이에 본 연구에서는 경량전철 시스템엔지니어링 사업과 관련된 이해관계자들(획득자 및 공급자, 그리고 협력업체 등)을 위한 SE 교육교재를 개발하여 사업수행 전 및 수행과정에서 활용할 수 있도록 하였다. 교육교재는 일반(공통)과정, 수행자(실무자)과정, 심화수행자(관리자)과정)으로 구분하여 개발하였다. 이는 경량전철사업의 성공과 우수한 성과 창출을 위해 중요한 역할을 할 것으로 기대된다.

화물용 튜브운송시스템의 운영개념서 및 운영요구사항서 개발에 관한 연구

최요철,Choi, Yo Chul 한국시스템엔지니어링학회 2010 시스템엔지니어링학술지 Vol.6 No.1

본 논문은 전세계적으로 신교통시스템으로 연구되고 있는 튜브운송시스템에 대한 개념과 화물용 튜브운송시스템의 운영개념서 및 운영요구사항의 개발에 관한 것이다. 철도시스템의 개발 초기에 시스템의 정확한 운영개념을 확립하고 이를 기반으로 시스템에 대한 사용자의 명확한 사용자 요구사항 및 운영요구사항을 도출하는 과정은 매우 중요하며, 시스템의 개발 초기 단계 측 개념설계 단계에서 반드시 수행되어야 한다. 본 논문을 통해서 문헌적인 운영개념서의 형식에 대한 조사, 특징, 그리고 현실적인 운영상황을 고려한 화물용 튜브운송시스템의 운영개념서를 제안하였다. 운영개념서를 통해서 사용목적, 운영시나리오, 비상상황 등의 정보가 식별하였으며 이를 바탕으로 시스템의 운영요구사항서를 개발하였다. 개발된 운영개념서 및 운영요구사항서는 확인된 사용자 요구사항 및 시스템 요구사항으로 구체화 되며, 시스템 아키텍처의 참고문서로서 활용될 수 있다.

복합시스템을 위한 시스템엔지니어링 적용방안에 대한 연구

김종열,함범식,조태형,이범석,Kim, Jong Yoel,Ham, Bum Sik,Cho, Tae Hyoung,Lee, Bum Sug 한국시스템엔지니어링학회 2010 시스템엔지니어링학술지 Vol.6 No.1

This paper describes the application method of systems engineering for systems of systems and addressed the evolution in approach as organizations have evolved from standalone platform providers to architect of SoS. There is an increasing need to perform Systems of Systems Engineering(SoSE) in a global environment This has stimulated the development of new, innovative SoSE approaches that surpass current military and industry state-of-the-art systems engineering processes. The simple scaling of the former process was ineffective in dealing with global distributed large-scale integration efforts of network-centric systems of systems. A new SoSE process has been developed which is a significant breakthrough in the development of large complex systems and net-centric systems of systems. The SoSE process provides a complete, detailed and systematic development approach for military and civil SoS. In this point of view, this paper analyzes functionally the architecture framework, process and integrated verification & validation of SoSE. From results of this analysis, perspectives on the application of SoSE suitable for Korea aquisition environment are presented.

시스템엔지니어링 전산지원환경 구축 절차에 관한 연구

박철호,유정근,Park, Cheol Ho,Yoo, Jung Kun 한국시스템엔지니어링학회 2010 시스템엔지니어링학술지 Vol.6 No.2

국내에 다양한 시스템 엔지니어링 전산지원도구(Computer Aided tools for Systems Engineering)가 도입되고 도구의 기능이 향상됨에 따라 시스템 엔지니어링 전산지원환경을 구축하는 사례가 늘어나고 있다. 전산지원환경을 구축하기 위해서는 기존의 국내외 시스템 엔지니어링 표준 및 지침에서 언급되지 않은 구체적인 업무에 대한 고려가 요구되기 때문에, 많은 노력과 시간이 소요된다. 시스템 엔지니어링 본 연구에서는 국내 연구소 및 기업의 시스템 엔지니어링 전산지원환경을 구축하는 과정에서 습득된 문제점과 경험적 교훈(lessons learned)을 정리하였다.

수명예측 방법에 따른 마이크로스위치의 수명분석 및 신뢰도 예측

지정건,신건영,이덕규,이희성,Ji, Jung-Geon,Shin, Kun-Young,Lee, Duk-Gyu,Lee, Hi Sung 한국시스템엔지니어링학회 2011 시스템엔지니어링학술지 Vol.7 No.1

Reliability means that a product maintains its initial quality and performance at certain period of time(time, distance, cycle etc) under given condition without failure. Given conditions include both environmental condition and operating condition. Environmental condition means common natural environment such as temperature, humidity, vibration, and working condition means artificial environment such as voltage, current load, install place, hours of use, which occurs during using the product. In the field of railway vehicles, although components of railway vehicles with reliability are the trend of mandatory as persisting period of railway vehicles is extended, using components of railway vehicles is insufficient for the practical reliability assessment. but the meaning of the first railway operating agency to acquire the parts in the field, the data suggest the reliability of products if you can and can show the reliability of modular units and modular units can provide the reliability of if you can present reliability of the entire system is thought to be here In this study, lifespan of micro-switch for master controller is analyzed and prediction is performed based on its field data considering the special circumstances of railway vehicles operating agency, such as a large number of trains operates on the same line.

독수리구매사업 시스템엔지니어링 적용사례

이희장,이동석,함혁상,노균협,권영훈,Lee, Hi-Jang,Lee, Dong-Seok,Ham, Hyuck-Sang,Rho, Kyun-Hyup,Kwon, Young-Hoon 한국시스템엔지니어링학회 2007 시스템엔지니어링학술지 Vol.3 No.2

To Manage the Defense Acquisition Process more efficiently, DAPA has looked over the applying SE process to the Eagle Acquisition Program. Based on comparing 'Requirement' with 'items suggested in the proposal' in RFP and analyzing the result by using Cradle, those items have been discovered with IPT, actualized and corrected. In addition, the computerized data base system makes easier to trace all changed and more efficiency to manage programs. Therefore, this study using SE in other acquisition program.

시스템엔지니어링 기법을 적용한 가압중수로 노심관리 지원시스템 개발 사례

염충섭,김진일,송용만,Yeom, Choong Sub,Kim, Jin Il,Song, Young Man 한국시스템엔지니어링학회 2013 시스템엔지니어링학술지 Vol.9 No.1

Systems Engineering Approach was applied to the development of operator-support core management system based on the on-site operation experience and document of core management procedures, which is for enhancing operability and safety in PHWR (Pressurized Heavy Water Reactor) operation. The dissertation and definition of the system were given on th basis of investigating and analyzing the core management procedures. Fuel management, detector calibration, safety management, core power distribution monitoring, and integrated data management were defined as main user's requirements. From the requirements, 11 upper functional requirements were extracted by considering the on-site operation experience and investigating documents of core management procedures. Detailed requirements of the system which were produced by analyzing the upper functional requirements were identified by interviewing members who have responsibility of the core management procedures, which were written in SRS (Software Requirement Specification) document by using IEEE 830 template. The system was designed on the basis of the SRS and analysis in terms of nuclear engineering, and then tested by simulation using on-site data as a example. A model of core power monitoring related to the core management was suggested and a standard process for the core management was also suggested. And extraction, analysis, and documentation of the requirements were suggested as a case in terms of systems engineering.

시스템엔지니어링 전산관리도구를 활용한 우주발사체 기술완성도(TRL) 관리

장준혁,권병찬,임창영,조동현,유일상,Jang, Jun Youk,Kwon, Byung Chan,Lim, Chang Young,Cho, Dong Hyun,Yoo, Il Sang 한국시스템엔지니어링학회 2020 시스템엔지니어링학술지 Vol.16 No.1

The KSLV-II project with high difficulties technically requires thorough technical management during long-term life cycle more than 10 years for launching into space. The TRL is a quantitative indicator developed by NASA widely used all over the world to measure technology maturity of a system development objectively and consistently. The TRL is also used to make sure technology level and to establish a future direction in the KSLV-II project. The TRL has advantage enable to identify a technology level through quantitative indicators. However, it takes a lot of efforts such as trials and errors, time and cost to apply it to the project considering the project environments, and stakeholder needs. These include not only to establish TRL management plan from ideal, conceptual and abstractive standards/guidelines such as NASA's, but also to construct TRL management environment enable to apply and manage harmoniously. In the KSLV-II project, it is required to figure out current technology level and technology development trend in the future, to access conveniently, to share related data in real time, and to update periodically for the comprehensive TRL management. From the reason above, the TRL management environment was built by using the systems engineering tool already has been used for other system management data such as requirements in the project. It also could be accomplished a practical management basis of systems engineering from the traceability among system management data including TRL. In this paper, case study results are introduced to manage the TRL for the space launch vehicle using the systems engineering tool in the KSLV-II project.

SysML을 활용한 국방 유도무기체계에 대한 MBSE 적용 사례 연구

장재덕,최상택,김명호,박동주,김승환,최상욱,Jang, Jae-Deok,Choi, Sang-Taik,Kim, Myong-Ho,Park, Dong-Ju,Kim, Seung-Hwan,Choi, Sang-Wook 한국시스템엔지니어링학회 2011 시스템엔지니어링학술지 Vol.7 No.1

본 논문은 대형복합 시스템인 국방 유도무기체계를 MBSE(Model Based Systems Engineering) 방법론에 적용한 사례 연구에 대하여 다룬다. MBSE 방법론 적용을 위해 시스템 엔지니어링 설계 프로세스를 적용한다. 이를 통해 MBSE 방법론 적용의 유용성을 공유하고, MBSE 적용 지침으로 활용될 수 있도록 한다.