경전철 시스템의 효과적인 구축을 위한 예비 RAM 분석

박진재(Jin Jae Park),김원근(Won Keun Kim),이영재(Yeong Jae Lee),이재형(Jae Hyung Lee),김용(Yong Kim) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10

일반적으로 규모가 큰 국방산업 및 철도 시스템 구축 시에는 시스템의 성능과 안전을 확보하고 최적 시스템을 구축하기 위한 시스템 엔지니어링 기법이 활용되고 있다. 경전철 시스템 구축 시에도 시스템 엔지니어링 기법을 활용하고 있으며, 이를 위해 설계 단계에서 고려하는 신뢰성 및 안전성을 확보하기 위한 방안으로 RAMS 분석을 적용하고 있다. 본 논문에서는 RAMS 분석의 기본적인 이론과 국내·외 적용 사례를 바탕으로 RAMS 관리 활동을 위한 적용 방안과 그에 따른 성과물을 제시하였다. 또한 경전철 시스템의 RAM 목표 값 요구사항을 도출하기 위해 예비 RAM 분석에 대한 연구 내용을 제시하고자 한다. System engineering method is generally applied to large system for securing performance and safety and constructing optimized system in defense and railroad system. The method is also used for light rail transit system for reliability and safety, RAMS analysis is applied in design phase. This paper proposes application methods and results for RAMS management activity based on basic theory with domestic and foreign case. In addition, suggest study of preliminary RAM analysis for requirement analysis of RAM goals in light rail transit system.

입구 고난류강도가 탈설계점에서의 터빈 끝벽 열부하 분포에 미치는 영향

박진재(Jin Jae Park),채병주(Byoung Joo Chae),문현석(Hyun Suk Moon),이상우(Sang Woo Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6

Effect of high inlet turbulence on the thermal load distribution on the endwall surface of a first-stage linear turbine rotor cascade at off-design conditions has been investigated by employing the naphthalene sublimation technique. The experiments are carried out at an inlet Reynolds number of 2.78×10? for two incidence angles of -10 and 10 degrees. The result shows that the high inlet turbulence suppresses the development of three-dimensional vortical flows near the endwall, and makes the endwall thermal load more uniform, particularly at the positive incidence.

경량전철 시스템의 무인운전을 위한 안전요구사항 분석

박진재(Jin-jae Park),이영재(Yeong-jae Lee),이재형(Jae-hyoung Lee) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5

현재의 철도, 도시철도, 경량전철 등의 다양한 철도사업에서 무인운전(unattended)의 시스템을 구축하기 위하여 많은 노력이 진행되고 있으나, 이에 따른 관련 법령 및 법규의 개정에 대한 검토연구는 미비한 실정이다. 무인운전을 위해서는 서브시스템에 대한 기능 할당과 각 서브시스템의 설계 및 제작단계에서 시스템의 신뢰성(Reliability)과 안전성(Safety) 확보가 필수적이다. 이러한 신뢰성 및 안전성 요구사항에 대해서 국제규격 IEC 62267(Railway Applications-Automated Urban Guided Transport Safety Requirements) 및 EN 62290-1(Railway Applications-Urban Guided Transport Management and Command/Control Systems)에서 권고하는 무인운전에 필요한 안전요구사항 조사 및 분석을 통해서 국내 경량전철의 무인운전에 필요한 안전요구사항이 정립되는 기틀을 마련하고자 한다. Currently, the railway business, has been much effort to build a system for unattended operation. However, the study examines the revision of laws and regulations that relate to this situation is inadequate. For unattended operation, ensuring the reliability and safety of the system is essential in the production stage and the allocation of the functions of the sub-systems, and design of each subsystem. Through research and analysis of safety requirements required to operate unattended recommendations to EN62290-1 and IEC62267 international standard requirements for the reliability and safety of these infrastructure safety requirements necessary for the operation of unmanned train lightweight domestic is established trying to provide.

도시철도의 시스템엔지니어링 아키텍처설계 프로세스 연구

박진재(Jin-Jae, Park),이재형(Jae-Hyoung, Lee),추동수(Dong-Su, Chu) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10

시스템엔지니어링(System Engineering : SE)이란 복잡한 시스템을 개발함에 있어, 고객의 요구를 만족시키는 통합된(Integrated), 수명주기(life cycle)적 균형설계조합을 구성하고 검증하기 위한 다 학문분야의 엔지니어링 접근방법으로 정의한다. 이러한 시스템엔지니어링에는 국제규격인 ISO/IEC 15288 『정보기술 : 시스템 및 소프트웨어공학 – 시스템 생명주기 프로세스』를 기준으로 11개 기술프로세스로 수행된다. 본 논문에서는 시스템엔지니어링의 국제규격인 ISO/IEC 15288 11개 기술프로세스 중 아키텍처 설계 프로세스 단계의 기술프로세스, 핵심기술프로세스, 프로젝트지원 프로세스의 활동 및 절차, 산출물에 대하여 도시철도 프로젝트에서 적용방안에 대한 연구 내용을 제시하고자 한다. System Engineering (System Engineering : SE) in developing complex systems is an approaching way to meet the customer’s needs of integrated life cycle ever balanced combination between design and verification of configuration for all disciplines of engineering. In these systems, engineering is performed by the standardized process such as ISO/IEC 15288 『Information technology – System and software engineering – System life cycle processes』 Technical process 11 is performed. In this paper, study is to present about information regarding the process of architecture design phase, systems engineering activities and procedures of project support process and core technical process and technical process, and deliverables for the study from 11 technology standards based on ISO/IEC 15288.

경량전철 시스템엔지니어링 비용 추정 분석

박진재(Jin-jae Park),이영재(Yeong-jae Lee),이재형(Jae-hyoung Lee),박영원(Young-won, Park) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.11

현재 국내 건설 또는 운영 중인 경량전철사업의 시스템엔지니어링 분야는 해외 기업에서 주관하고, 국내 기업은 하부 참여기업 형태로 시스템엔지니어링 업무를 수행하고 있어 핵심기술에 대한 종속관계로 시스템엔지니어링에 대한 기술 자립이 필요한 실정이다. 이에 국책연구과제인 “경량전철 시스템 및 운영고도화를 위한 시스템엔지니어링 적용기술 개발” 연구사업을 진행 중에 있으며, 연구사업의 사업화 계획의 일환으로 현재 진행중에 있는 경량전철 대상사업을 조사 및 선정하여 경량전철 시스템엔지니어링 비용 산정기준에 대한 객관적인 근거 마련을 위해 시스템엔지니어링 비용 추정 모델인 COSYSMO(Construction Systems Engineering Cost Model)의 크기드라이버 4개 항목, 비용드라이버 14개 항목에 대한 파라미터 및 경량전철 건설사업의 요구사항 수준 및 난이도 분석을 통해 경량전철 시스템엔지니어링에 대한 객관적인 비용을 분석하고자 한다. In the field of system engineering of Light Rail Transit business , which operates and construction of the current domestic , foreign companies are organized , domestic enterprises , has made the system engineering business as a lower participating companies form , dependency of the key technologies independence of the technology of system engineering is required reality . Is promoting the research project of "Development of systems engineering application technology for LRT system and advancement of LRT Operation" this is a national policy research agenda , as part of the commercialization of research business plan , light rail transit subject of ongoing four items of size driver COSYSMO(Construction Systems Engineering Cost Model) is an estimated model of the system engineering cost to procure grounds objective of the basis of calculation for the light rail transit system engineering costs by selected research and business is , you are trying to analyze the cost objective of light rail transit systems engineering through the analysis of requirements and difficulty level of light rail transit construction business and train parameters of 14 items cost driver.

둔황 막고굴 벽화와 고구려고분군 벽화에 나타난 성곽도 연구

박진재(Park Jin-Jae),이상해(Lee Sang-Hae) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.2

Dunhuang Mogao Caves in China and mural paintings of Complex of Koguryo tombs, inscribed on the World Heritage List, 1987 and 2004, respectively, have been recognized as great human achievements in terms of architectural, artistic and cultural sense, embodying human creativity, religions, ideas or tradition in the context of each and regional civilization. However, facing problems such as insufficient ruins, scanty records and uneasy access, studying ancient architecture in Korea is a challenge for us, which, under the circumstances, needs holistic approach. Especially, Koguryo which had long and dynamic relations with China would have been influenced from it in many ways and would have done the same thing to neighboring countries. The fortresses depicted in the mural paintings give us important clues to help us understand the architectural layouts and details in those days. The goal of this study is to consider architectural elements through fortresses shown in the mural paintings both from China and Koguryo and look through relevant documents to help find the missing link in the architectural history of Korea and China.

경량전철 민간투자사업의 시스템엔지니어링 연구

차기호(Cha Gi Ho),박진재(Park Jin Jae),이재형(Lee Jae Hyoung),추동수(Chu Dong Su) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10

Promote competition in local government and the construction of a subway construction in the vicious cycle of debt due to the operating deficit as a greater burden on local finances was leave. This government policy of public transport in the center of the metro construction costs affordable and to respond appropriately to public transport demand new transit LRT(Light rail Transit) by introducing the current Busan was the opening of Line 4 yongin line Busan - Gimhae line parliamentary and barge construction or ready for the opening. What is light rail compared to the existing subway and cheaper construction cost the existing road or bridge that runs along the track is installed etc. Manless system construction cost and operating expenses as a possible new railway transportation has been a leading state-of-the-art mad. However the domestic business system engineering of light rail-related companies in the developed countries are doing to advance to the national to the local engineering skills of the self-free hurry will have to be secured. Therefore this paper applies local light rail project on the status of the systems engineering analysis and based on this source of the latest engineering technology-intensive systems engineering to provide direction to the development of technology.

어머니의 자아분화 수준에 따른 유아의 사회성 발달

민혜영 ( Hea Young Min ),박진재 ( Jin Jae Park ) 영유아교육학회 2005 영유아교육연구 Vol.8 No.-

도시철도 프로젝트의 시스템엔지니어링 기술프로세스 연구

차기호(Gi-Ho Cha),박진재(Jin-Jae Park),이재형(Jae-Hyoung Lee) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5

시스템엔지니어링(System Engineering : SE)이란 복잡한 시스템을 개발함에 있어, 고객의 요구를 만족시키는 통합된(Integrated), 수명주기(life cycle)적 균형설계조합을 구성하고 검증하기위한 다 학문분야의 엔지니어링 접근방법이다. 이러한 시스템엔지니어링에는 EIA/IS등으로 국제 표준화 되어있는 요구분석, 기능분석 및 할당, 설계조합 그리고 이러한 절차 간에 시스템전체 개념의 분석과 통제를 통해 균형을 이루게 하는 프로세스에 의해 수행된다. 본 논문에서는 시스템엔지니어링의 국제규격인 ISO/IEC 15288 『정보 기술 : 시스템 및 소프트웨어 공학-시스템 생명주기 프로세스』를 기준으로 11개 기술프로세스 중 이해관계자 요구사항 정의와 요구사항 분석프로세스에 대한 시스템엔지니어링 활동 및 절차, 산출물에 대한 연구 내용을 제시하고자 한다. Systems Engineering (System Engineering: SE) in developing complex systems is an approaching way to meet the customer's needs of integrated life cycle ever balanced combination between design and verification of configuration for all disciplines of engineering. In these systems, engineering is performed by the standardized process such as EIA / IS considering requirements analysis, functional analysis, allocation, design, and analysis and controls across the entire system making it balanced. In this paper, study is to present about information regarding the process of stakeholder requirements definition and requirements analysis, systems engineering activities for the process and procedures, and deliverables for the study from 11 technology standards based on ISO / IEC 15288; international standard for systems engineering; "Information Technology: Systems and software engineering-System life cycle processes"

자유유동 난류강도가 터빈 동의 표면에서의 열(물질)전달 특성에 미치는 영향

이상우(Sang Woo Lee),박진재(Jin Jae Park),권현구(Hyun Goo Kwon),박병구(Byung Kyu Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4

he heat (mass) transfer characteristics on the blade surface of a first-stage turbine rotor cascade has been investigated by employing the naphthalene sublimation technique. A four-axis profile measurement system is employed for the measurements of the local heat (mass) transfer coefficient on the curved blade surface. The experiments are carried out for two free-stream turbulence intensities of 1.2% and 14.7%. The high free-stream turbulence results in more uniform distributions of heat load on the both pressure and suction surfaces and in an early boundary-layer separation on the suction surface. The heat (mass) transfer enhancement on the suction surface due to the endwall vortices is found to be relatively small under the high free-stream turbulence.