• 제목/요약/키워드: 증기발생기세관

검색결과 77건 처리시간 0.028초

증기발생기에서 지지대와 세관의 경사면 접촉시 상대변위에 의한 세관 마모량 예측 방법 (A Method for Prediction of Tube Wear by Relative Displacement in the case of Inclined Contact between Tube & Support of Steam Generator)

  • 이용선;박문규;김태순;박치용;부명환
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2003년도 추계학술대회
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    • pp.1168-1173
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    • 2003

  • When the tube contacted to support and antivibration bar of the steam generator in unclear power plant, the contact area is worn out by their relative displacement. In the study, wear depths of the tube inclined to tube support and antivibration bar are approximately predicted by a method using the contact load and relative displacement. In the case of the inclined contact, the results show wear depths of the steam generator tube predicted by the impact model are larger than those by the sliding model.

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현장 측정 데이터를 이용한 SG 세관 마모량 예측 방법

  • 김태순;이용선;박치용
    • 한국산업안전학회:학술대회논문집
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    • 한국안전학회 2002년도 춘계 학술논문발표회 논문집
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    • pp.184-189
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    • 2002

  • 기계부품 및 구조물의 상호접촉면이 미소변위에 의해 상대운동을 할 때 접촉면에서는 마모가 발생하고 이러한 마모현상은 당해 구조물의 안전성을 심각하게 위협하는 결과를 초래하게 된다. 이러한 마모 현상에 대한 근래의 연구동향으로는 $Engel^{(1.2)}$ 이 충격(impact)에 의한 마모에 대해, 그리고 $Waterhouse^{(3)}$ 는 미끄럼(sliding) 마모에 대해 연구한 바 있다. 원자력발전소의 증기발생기(steam generator) 내에서 1차측의 세관(tube)과 2차측에 속하는 지지물(supporter) 또는 방진대(antivibration band) 사이에서 세관의 진동으로 인해 지지물과 충돌을 일으키고 충돌 횟수가 누적되면 세관의 마모로 이어져 결국 세관의 건전성은 침해받게 된다.(중략)

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증기발생기 세관과 지지대 간극이 세관 마모에 미치는 영향 (Effects of Gap between Tube and Support Plate on the Steam Generator Tube Wear)

  • 박치용;이용선;부명환;김태룡;김태순
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 추계학술대회
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    • pp.302-307
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    • 2004

  • The major flow-induced vibration mechanisms such as fluid-elastic and turbulence excitation can cause the various types of wear of the steam generator tubes in unclear power plant. It is generally accepted that the tube wear due to vibration is affected by the presence of gap clearance between tube and support plate. Connors showed that the tube wear depth could be estimated by using the relationship between wear volume and sliding distance for contact time. Au-Yang predicted the wear depth by using the nonlinear characteristics of normal work rate to contact time. In this study the effect of gap size on the steam generator tubes wear is analyzed by deriving the wear depth versus normal work rate relationship from these previous results.

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증기발생기 세관과 지지대 간극을 고려한 마모량 예측 방법론 (Methodology for Wear Prediction Considering the Gap between Tube and Support/Anti-vibration-bar in the Steam Generator)

  • 이용선;박치용;김태순;부명환
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 춘계학술대회
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    • pp.84-89
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    • 2004

  • When the tube contacted to support, anti-vibration bar of the steam generator in nuclear power plant, the contact area is worn out by their relative displacement and contact force. Connors and Au-Yang found the relation between tube worn displacement and volume, or normal work rate at given gap size. The present analysis is obtained the relation between tube worn displacement and normal work rate at various gap size modifying Au-Yang's result. The results are compared with Connors and Yettisir and Pettigrew's results. The comparison shows that Yettisir and Pettigrew result is fairly good agreement with Connors and present results with gap clearance, 0.015in.

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