• 제목/요약/키워드: D.B.H. analysis

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Stress Analysis of Pool-wall pipe supports

  • Lee, J.M.;Sim, B.S.;Park, K.N.;Chi, D.Y.;Park, S.K.;Ahn, S.H.;Lee, C.Y.;Kim, Y.J.
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 2005년도 춘계학술발표회
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    • pp.859-860
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    • 2005
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신개념 소수력 발전설비 Katamax에 대한 이론적 고찰 및 Prototype 제작 결과 (Analytic study and prototype development of a novel micro hydropower generator, Katamax)

  • 김욱;;엄복진;김대환;유형동;구희철
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 추계학술대회 논문집
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    • pp.69-72
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    • 2001
  • A novel water-turbine, Katamax, for micro hydropower generator is proposed, which has reasonable efficiency even in two meters of water head. The basic concept of Katamax is similar to that of waterwheel except that Katamax has two axis on which the blades rotate, where general waterwheel has only one. Brief structure and principles of Katamax are explained and analysis for efficiency of each module are provided. The result of the prototype product of Katamax is briefly explained.

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카본 세라믹 복합재 디스크의 벤트 구조 최적화를 통한 냉각성능 향상에 관한 연구 (A Study on Improvement of Cooling Performance through Vent Structure Optimization of Carbon Ceramic Composite Disc)

  • 심재훈;신웅희;이중희;전갑배;김병철;곽정후;임동원;현은재;전태형;이재만
    • 자동차안전학회지
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    • 제11권1호
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    • pp.23-29
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    • 2019
  • Recently, use of composite materials has been increasing for body structures and chassis parts in the car industry because of weight reduction effect and excellent mechanical thermal characteristics. However, application of composite materials in brake system is very difficult because it is hard to obtain enough brake performance due to low heat storage capacity of the composite materials. In this paper, we will present new carbon ceramic composite disc with high flow characteristic. To obtain this characteristic, new vent structures were designed by using ARIZ method and substance-field model analysis. The flow effect of these vent structures on the brake performance was verified by pugh matrix and cooling test. The test results show improvement of cooling performance up to $30^{\circ}C$. Finally, These results will improve brake the reliability of the brake performance for the high performance vehicles and electric vehicles.