• 제목/요약/키워드: Total design

검색결과 9,804건 처리시간 0.034초

Design of A Human Model of the Moving-Actuator Type Total Artificial Heart

  • Chang, Jun-Keun;Min, Byoung-Goo
    • 대한의용생체공학회:의공학회지
    • /
    • 제18권1호
    • /
    • pp.65-70
    • /
    • 1997
  • A human version of Korean total artificial heart(TAM) was designed basso on the magnetic resonance imaging(MRI) data To obtain accurate measurement or human thoracic structure including the valvular sited we analyzed the dimensions of the natural heart of healthy persons and cardiomyopathy(CM) patients. The MRI findings were analyzed to measure the volume of the thoracic cavity that would be occupied by the TAM. The design upgrade of the mechanical performed was also performed with the computer aided design(CAD) system to develop a new version of Korean TAH.

  • PDF

아음속 확산형 S-덕트 최적 설계에 관한 연구 (Study of Subsonic Diffusing S-Duct Design Optimization)

  • 김수환;권장혁
    • 한국전산유체공학회:학술대회논문집
    • /
    • 한국전산유체공학회 2002년도 추계 학술대회논문집
    • /
    • pp.121-126
    • /
    • 2002
  • Aircraft propulsion systems often use diffusing S-duct to convey air flow from the wing or fuselage intake to the engine compressor, Well designed S-duct should incur minimal total pressure losses and deliver nearly uniform flow with small transverse velocity components at the engine compressor entrance. Reduced total pressure recovery lowers propulsion efficiency and nonuniform flow conditions at the engine face lower engine stall limits. In this study, S-duct which has maximum total pressure recovery and nearly uniform flow profiles at the compressure intake should be found using design optimization methods with 3-dimensional Wavier-Stokes analyses.

  • PDF

항공기 개념설계를 위한 전체항력 예측에 관한 연구 (A Study on the Total Drag Estimation for the Aircraft Conceptual Design)

  • 김상진;전권수;이재우
    • 한국군사과학기술학회지
    • /
    • 제2권2호
    • /
    • pp.70-82
    • /
    • 1999
  • During the aircraft conceptual design stage, rapid aerodynamic analyses over various configurations are required. Hence, empirical and analytical methods play important roles in predicting the aero-dynamic characteristics. In this study, total drag estimation method based on empirical and analytical approaches is developed. By comparing with the results of the wind tunnel experiment and existing prediction methods, it is demonstrated that the developed method is accurate and useful in predicting total drag for the whole Mach number range.

  • PDF

부산연제우체국청사 조경설계 (Landscape Design of Busan Yeonje Post Office)

  • 김정수;최연철
    • 한국조경학회지
    • /
    • 제30권6호
    • /
    • pp.109-118
    • /
    • 2003
  • This design is for the landscape of Busan Yeonje Post Office. The design requirements were: the preparation of an open space, the expression of regional identity, total design concept, and application of environmentally-friendly materials. The Busan Yeonje Post Office is not a just post office building but also a place for people including a communications center, rental offices, and a post office, facilities which require publicity, functionality, and symbolism. Therefore, this design reflected the design requirements, and considered the following to include the theme of "Pleasant messages and a pleasant post office with vitality and comfort. First, the open space was to be increased in the adjacent public vacant lot and street park by pulling back the construction line. In this way, the publicity, accessibility, and spatiality of the prepared open space were strengthened. Second, a sense of place for the landscape was expressed through the image of a wave representing Busan, a coastal town. Recognition of the space was strengthened, while regional identity and the concept of transmission of information were expressed. In addition, Citrus junos Sieb., representing 'Happy news' was Planted as a symbolic tree to denote a meaningful resting Place. Third, with respect to the design of reception facilities, considering the general purposes of the construction, post office stamps, envelopes, and postal delivery persons were portrayed on the walls, decorative walls, and environmental formations respectively The flooring was decorated with stamps and waves in keeping with of the total design concept. Fourth, to select environmentally-friendly materials, soil block and eco-grass block were introduced as major paving materials, and folk kinds of trees were included on site. According to the aforesaid plans, the researcher attempted to convert the public agency and office space characterized by feelings of dullness and rigidity into a soft and vivid outdoor space. It is expected that the location will be an open place in the downtown area and be recognized as a 'shared' space for citizens of Yeonje-gu.

인천대교 민자구간의 대구경 현장타설 말뚝기초의 LRFD 설계 적용 사례 (Design of Drilled Shafts Foundation by LRFD in Incheon Bridge Project)

  • 김정환;이현근;신현양;윤만근
    • 한국지반공학회:학술대회논문집
    • /
    • 한국지반공학회 2006년도 추계 학술발표회
    • /
    • pp.551-561
    • /
    • 2006
  • Incheon bridge project is to construct total 12km long bridges on the sea consist of 800m span length cable stayed bridge, approach bridge and viaduct bridge based on LRFD design specification. To design pile foundations by RCD of each bridge unit, total 4 number of preliminary full scale pile load tests with Osterberg cell method were carried out on the piles for testing. The test load was planned to more than the expected design ultimate capacity and about 29,000tons maximum load was recorded. From the interpretation of test results, design parameters are evaluated and applied to the design. Preliminary pile load test plan and detailed execution of pile load tests are introduced and summarized. The resistance factors are presented for pile design of Incheon Bridge Project in LRFD considering variation of ground conditions and number of test piles.

  • PDF

SOFC-GT 혼합시스템용 원심압축기 공력설계 및 유동특성 연구 (A Study on Aerodynamic Design and Flow Characteristics of a Centrifugal Compressor for SOFC-Gas Turbine Hybrid System)

  • 최재호
    • Journal of Advanced Marine Engineering and Technology
    • /
    • 제32권2호
    • /
    • pp.284-291
    • /
    • 2008
  • This study presents an aerodynamic design and numerical analysis of a centrifugal compressor in gas turbines for SOFC-gas turbine hybrid system application. Total-to-total pressure ratio of the compressor is 3.6:1 that could be used widely for small and large SOFC-gas turbine systems. The compressor consists of a centrifugal impeller and a wedge diffuser. Conceptual design and aerodynamic design with mean line analysis and quasi-3D analysis are performed, and aerodynamic parameters as well as design variables are discussed from the design results. A numerical analysis based on the Reynolds-averaged Navier-Stokes equation was performed for the flow analysis of the compressor. The results show that the centrifugal compressor designed meets the design target, and the aerodynamic parameters and results of the compressor can be used for the aerodynamic design of centrifugal compressors and the feasibility study of SOFC-gas turbine system design.

효율적 분산협동최적설계를 위한 병렬처리 기반 분해 기법 (Parallel Processing Based Decompositon Technique for Efficient Collaborative Optimization)

  • 박형욱;김성찬;김민수;최동훈
    • 대한기계학회논문집A
    • /
    • 제25권5호
    • /
    • pp.883-890
    • /
    • 2001
  • In practical design studies, most of designers solve multidisciplinary problems with large size and complex design system. These multidisciplinary problems have hundreds of analysis and thousands of variables. The sequence of process to solve these problems affects the speed of total design cycle. Thus it is very important for designer to reorder the original design processes to minimize total computational cost. This is accomplished by decomposing large multidisciplinary problem into several multidisciplinary analysis subsystem (MDASS) and processing it in parallel. This paper proposes new strategy for parallel decomposition of multidisciplinary problem to raise design efficiency by using genetic algorithm and shows the relationship between decomposition and multidisciplinary design optimization (MDO) methodology.

그래픽디자인 리서치 수행에 관한 연구 (A way of undertaking a research phase in graphic design)

  • 이연준
    • 한국산학기술학회논문지
    • /
    • 제15권8호
    • /
    • pp.4821-4830
    • /
    • 2014
  • 본 논문은 그래픽 디자인에서 디자인리서치의 중요성과 사회와 인간과 함께하는 디자인적 방법(Design tools)의 이해 고취가 목표이다. 본 연구는 총 60명을 대상으로 연구를 진행하였으며, 참여자들은 IDEO 툴킷(방법)을 활용하였다. 총 세 개의 설문조사가 이루어졌으면 두 개의 설문지는 동일한 형태로 프로젝트 참여 '사전'과 '사후'에 각각 사용되었다. 마지막은 학생들의 작업을 평가하기 위해 전문가 6인의 조사가 이루어졌다. 예비분석에서는 학생들의 프로젝트 이전의 리서치 경향 인터넷과 문헌자료에 의존도가 매우 높고 체계적인 연구의 형태를 보이지 않았다. 본 분석을 통해서는 리서치에 많은 시간을 할애하고 디자인적 방법을 사용한 그룹의 평가가 긍정적으로 나타났다. 특히, '관찰'기법을 이용한 그룹의 긍정적 평가가 높게 나타났다.

지방자치단체 민원실의 유니버설디자인에 대한 이용자 만족도 조사연구 - 광주광역시 구청사를 중심으로 - (User's Satisfaction with Universal Design in Local Government's Public Service Center - Focusing on Public Service Centers in Gwangju Metropolitan City -)

  • 최아진;김미희
    • 한국주거학회논문집
    • /
    • 제27권4호
    • /
    • pp.67-76
    • /
    • 2016
  • The purpose of the study was to identify user' satisfaction about universal design in public service center that will be needed for helping planning and design the public service center. This study conducted a questionnaire survey targeting visitor in five district's public service center in Gwangju metropolitan city. A total of 253 responses were analyzed for identifying the level of satisfaction about universal design in public service center. The study also analyzed of the respondents depending on their demographic characteristics. The features of universal design were categorized into supportive design, communicability, safety-oriented design and accessible design, and total 25 specific items were included in the evaluation. Most of the respondents were satisfied with the waiting space, however they showed a lower level of satisfaction toward the information materials space. Those with a higher education attainment tended to be associated with stronger satisfaction with common space and information materials space. Groups with a lower age were more likely to be satisfied with common space and public service space. Also female tended to show a stronger degree of satisfaction with common space than male. The findings from this study should provide a guideline for planning and design the public service center.

중국, 일본, 한국의 오리엔탈리즘패션에 나타난 토탈패션(Total Fashion)에 관한 연구 (Study on Total Fashion in Orientalism Fashion)

  • 곽태기;김은정
    • 복식
    • /
    • 제52권5호
    • /
    • pp.109-127
    • /
    • 2002
  • As modern fashion trends show oriental motif since the transition of post-modernism, a number of great fashion designers such as Givenchy and Jean-Paul Gautier applied the concept of Orientalism to their fashion design. Total fashion is a trend in which make-up, hair-style, and accessories. together with clothing itself are considered a complete fashion as a whole, and sometimes appeals much to consumers. Given that the previous studies on Orientalism have focused only on clothing. this research aims at examining Orientalism with a total fashion approach to simultaneously study make-up, hair-style, accessories, and clothing, and showing that traditional oriental beauty is expressed by total fashion in which the past appeared again through the process of creative application. We analyzed the Orientalism total fashion from 1990 through 2001 and summarized the national differences among these countries in the following. First, China has a uniformed clothing. make-up, and hair-style as shown its traditional play, "KyungKeuk" and traditional costume, Chipao. Second, Japanese unique traditional costume has been passed on through its traditional costume, Kimono, and traditional play, "Kabuki" Finally, in Korea, make-up, hair-style and the design of the traditional costume. Hanbok, as appeared in "Myindo(means a picture of a beauty) Painted in the Chosun Era are applied and reappeared without much change. It is advised to note that the Orientalism fashion to be discussed in this study is limited to China, Japan, and Korea in Asia.Japan, and Korea in Asia.