• 제목/요약/키워드: design work

검색결과 8,312건 처리시간 0.038초

DEVELOPMENT OF THE DIGITALIZED AUTOMATIC SEISMIC TRIP SYSTEM FOR NUCLEAR POWER PLANTS USING THE SYSTEMS ENGINEERING APPROACH

  • Jung, Jae Cheon
    • Nuclear Engineering and Technology
    • /
    • 제46권2호
    • /
    • pp.235-246
    • /
    • 2014
  • The automatic seismic trip system (ASTS) continuously monitors PGA (peak ground acceleration) from the seismic wave, and automatically generates a trip signal. This work presents how the system can be designed by using a systems engineering approach under the given regulatory criteria. Overall design stages, from the needs analysis to design verification, have been executed under the defined processes and activities. Moreover, this work contributes two significant design areas for digitalized ASTS. These are firstly, how to categorize the ASTS if the ASTS has a backed up function of the manual reactor trip, and secondly, how to set the requirements using the given design practices either in overseas ASTS design or similar design. In addition, the methodology for determining the setpoint can be applied to the I&C design and development project which needs to justify the error sources correctly. The systematic approach that has been developed and realized in this work can be utilized in designing new I&C (instrument and control system) as well.

Conceptual Design of an HTS large power transformer with continuously transposed coated conductors

  • Lee, Se-Yeon;Park, Sang-Ho;Kim, Woo-Seok;Lee, Ji-Kwang;Park, Il-Han;Chol, Kyeong-Dal;Hahn, Song-Yop
    • 한국초전도ㆍ저온공학회논문지
    • /
    • 제13권2호
    • /
    • pp.5-8
    • /
    • 2011
  • This paper shows results of a design work of a program that is to develop a large power single phase high temperature superconducting (HTS) transformer. The program forms a part of a national project in Korea. A target of the design work is an HTS power transformer with rated voltages of 154 kV/22.9 kV and material for windings is supposed to be coated conductor. The design results presents in this paper will include: 1)HTS winding structures for high voltage in liquid nitrogen, 2)design result of continuously transposed coated conductor (CTCC), 3)conceptual design of high voltage bushings, 4)cooling system. A feasibility study will succeed to this design work for construction of a prototype HTS power transformer with capacity/voltage of 33 MVA/154 kV.

Jeffrey Fulvimari의 작품을 응용한 키덜트 패션 디자인 - CAD 시스템을 이용하여 - (Kidult Fashion Design Appling Jeffrey Fulvimari's Work - Using CAD System -)

  • 장정임;이연희
    • 복식문화연구
    • /
    • 제15권4호
    • /
    • pp.647-660
    • /
    • 2007
  • The purpose of this study is to develop 'fashion design for kidults' appling fashion illustrator Jeffrey Fulvimari's work which is offering inspiration through collaboration with artists of various fields, and it was also used to advertisement visual of many products. The method of the study is composed of literature study and development of fashion design based on it. The literature study is referred to books of fashion, books of trend and data collected through Internet, and design results are presented using Adobe Illustrator 10 and Photoshop 7.0 programs. This study chose images which give cute and lively feeling among famous fashion illustrator Jeffrey Fulvimari's works on the basis of influence of kidult trend appeared in modern fashion and presented kidult fashion design that expresses naive & happy memories of childhood girlishly and sexily using CAD system. Appling images appeared in Jeffrey's work to kidult fashion design could confirm that artist's work has a realizable possibility as high value-added design component, and it answered to kidult trend which is expressed variously in modern fashion.

  • PDF

실시간 시스템을 위한 소프트웨어 구조 설계 환경 (A Software Architecture Design Environment for Real-time Systems)

  • 강병도
    • 한국산업정보학회논문지
    • /
    • 제6권4호
    • /
    • pp.39-47
    • /
    • 2001
  • 소프트웨어 구조는 시스템 컴포넌트들과 그들의 상호관계를 이해하기 위한 프레임워크로서 제공된다. 또한 소프트웨어 구조는 낮은 비용, 높은 생산성 및 일관된 품질을 이루기 위해 재사용 될 수 있다. 본 논문에서는 우리가 개발한 소프트웨어 구조 설계 환경인 HanyWork의 구조와 기능을 설명한다. HappyWork는 두 가지의 주요한 기능을 가진다. 첫째로 HappyWork는 소프트웨어 구조 다이어그램의 모델링을 위한 그래픽 에디터를 제공하고, 둘째로 HWL(HappyWork language)라는 소프트웨어 구조 기술 언어를 제공한다.

  • PDF

천장유리 설치로봇의 자동화 공정설계 (Design of Working Process for Ceiling Glass Installation Robot)

  • 유보현;이승열;길명수;이상헌;이계영;한창수
    • 대한기계학회:학술대회논문집
    • /
    • 대한기계학회 2007년도 춘계학술대회A
    • /
    • pp.837-842
    • /
    • 2007
  • Since construction materials have been towards larger and heavier, the rate of accident associated with installation works of heavy construction materials is increasing. Installation works of heavy construction materials lead to frequent accidents, increasing the WMSDs(Work-Related Musculo-Skeletal Disorders) in construction site. In case of installation work of heavy glass ceiling, the rate of accidents such as falling and collision is increasing as well. This paper describes a ergonomic design of working platform(deck) in a glass ceiling installation robot. As well as, a design of working process is considered to accomplish an efficient installation work. As a result of the design, an installation work of heavy glass ceiling by the robot will be expected safety assurance and retrenchment of the construction cost and period.

  • PDF

Design of steel moment frames considering progressive collapse

  • Kim, Jinkoo;Park, Junhee
    • Steel and Composite Structures
    • /
    • 제8권1호
    • /
    • pp.85-98
    • /
    • 2008
  • In this study the progressive collapse potential of three- and nine-story special steel moment frames designed in accordance with current design code was evaluated by nonlinear static and dynamic analyses. It was observed that the model structures had high potential for progressive collapse when a first story column was suddenly removed. Then the size of beams required to satisfy the failure criteria for progressive collapse was obtained by the virtual work method; i.e., using the equilibrium of the external work done by gravity load due to loss of a column and the internal work done by plastic rotation of beams. According to the nonlinear dynamic analysis results, the model structures designed only for normal load turned out to have strong potential for progressive collapse whereas the structures designed by plastic design concept for progressive collapse satisfied the failure criterion recommended by the GSA guideline.

철골구조설계 지침서로서의 Hyperdocument에 관한 고찰 (On The Hyperdocument As A Companion For Structural Steel Designers)

  • 정영식;이재연
    • 한국전산구조공학회:학술대회논문집
    • /
    • 한국전산구조공학회 1997년도 가을 학술발표회 논문집
    • /
    • pp.181-188
    • /
    • 1997
  • This work proposes possible use of the hyperdocument as a companion for structural steel designers and also as a part of any expert system to be used for the design of steel structures. AISC Specification for Structural Steel Buildings - Allowable Stress Design and Plastic Design, June 1, 1989-has been thoroughly hyperdocumented. Database for the most of AISC standard sections has been built for easier reference to sectional properties and even for search for the relevant sections. Hardy and wxCLIPS from AIAI, The University of Edinburgh were used as development tools. Hardy is integrated with NASA's rule-based and object-oriented language CLIPS 6.0 to enable users to rapidly develop diagram-related applications. Currently this work does not include any sophisticated rule-bases. Rather, this work will form a part of the expert systems for the steel structural design to be developed later. Nevertheless, the hyperdocument of this work will make a good companion for structural steel designers in its own right.

  • PDF

스마트워크 공간을 위한 캐비넷 디자인 연구 (A Study on the Cabinet Design for Smart Work Space)

  • 송윤섭
    • 한국가구학회지
    • /
    • 제28권4호
    • /
    • pp.305-313
    • /
    • 2017
  • Recently, as changes in the office environment, office furniture are changing at a rapid pace. With the development of various smart devices specialized in work type, the concepts of office environment and office furniture are diversified. New furniture design is presented with the new concept of work format and changes to the space, an example of a compact single-person storage space is required.

스마트워크 적용과 효과: 업무 설계 이론을 중심으로 (Smartwork Application & Effects: Empirical Test for the Extended Work Design Theory)

  • 이혜정;박준기
    • 경영정보학연구
    • /
    • 제20권2호
    • /
    • pp.21-37
    • /
    • 2018
  • 스마트 업무 환경에서 원활한 의사소통과 효과적인 업무 수행을 위해서 모바일 시스템 활용이 핵심이 되어 가고 있다. 모바일을 중심으로 이루어지는 현업의 스마트워크 환경과 성과 프로세스를 업무 설계 관점에서 살펴보는 것이 필요하다. 업무 설계 이론에서 제시하고 있는 업무의 특성인 자율성과 상호의존성을 선행 요인으로 설정하여 스마트워크의 선택 정도를 살펴보았다. 스마트워크 적용에 따른 성과로서 의사소통의 확대 정도, 일과 삶의 균형, 그리고 궁극적인 성과 지표인 업무 만족으로 이어지는 프로세스를 검증하였다. 스마트워크 어플리케이션을 도입한 국내 IT 기업 3개의 근로자들을 대상으로 온/오프라인 설문조사를 실시하였으며 구조모형 분석을 통해 가설을 검증하였다. 그 결과 업무의 상호의존성이 높을수록 스마트워크 어플리케이션의 활용이 높아졌다는 것을 확인했다. 또한 의사소통의 확대를 통해 직접적으로 업무 만족과 일과 삶의 균형을 높여주고 있었다. 주목할 점은 스마트워크 적용이 조직 구성원들의 일과 삶의 균형에 직접적으로 영향을 주는 것이 아니라 의사소통의 확대를 통해서 가능하다는 점이다. 본 연구는 스마트워크 적용과 효과를 동시에 살펴보고 조직의 영향을 설명하려고 시도했다는 점에서 의미가 있으며, 본격적으로 IT 사용 환경을 고려한 업무 설계 이론을 구성하여 적용했다는 점에서 학술적 의의가 있다. 본 연구 결과를 바탕으로 국내 스마트워크 운영을 위한 시사점을 제시하였다.