물과 미래 (Water for future)

한국수자원학회 (Korea Water Resources Association)
권호 표지

고정케이블에 작용하는 Icing 하중: II. 적절한 특성길이의 결정

Icing Loads on Fixed Cables: II. Determination of Proper Length Scale

  • 윤병만 (명지대학교 공과대학 토목공학과) ;
  • ;
  • Yoon B. M. ;
  • Pokorny, M. (Iowa Institute of Hydraulic Reserch and College of Engineering, The University of Iowa, USA) ;
  • Ettema, R. (Iowa Institute of Hydraulic Reserch and College of Engineering, The University of Iowa, USA)
  • 발행 : 1996.04.01
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초록

본 논문에서는 icing의 모양을 대표적으로 나타낼 수 있는 적절한 특성길이의 선정에 대해 서술하였다. 실험 자료를 분석한 결과, 어떤 하나의 길이 단위로 특성길이를 정의하기는 곤란하였다. 특히, glaze icing 의 경우에는 그 형상이 매우 복잡하여 특성길이를 결정하기가 매우 어려웠다. 그러나, 바람의 방향에 수직한 단면의 길이로 정의되는 icing 길이가 icing으로 인한는 하중을 나타내기에는 실린더 혹은 전선의 지름 보다는 더 적절한 특성길이라 판단된다.

Attempts were made to determine a proper length scale representing characteristics of icing geometry. It was difficult to determine a single length scale especially for glaze icings because of their shape complexity. However, use of icing length, which is defined as the length of icing normal to the wind, as a characteristic length is suggested rather than the cylinder or cable diameter.

키워드

참고문헌

  1. Proceedings of First International Workshop on Atmospheric Icing of Structures, CRREL Special Report 83-17 Field measurements of combined icing and wind loads on wires Govoni, J.W.;Ackley, S.F.
  2. Proceedings of Fifth International Workshop on Atmospheric Icing of Structures Aerodynamic properties of natural rime ice samples Jones, K.F.;Govoni, J.W.
  3. Proceedings of Third International Workshop on "Atmospheric Incing of Structures Collection and reproduction of natural ice shapes on overhead line conductors and measurement of overhead line conductors and measurement of their aerodynamic characteristics Koutselos, L.T.;Tunstall, M.J.
  4. Cold Regions Science and Technology v.6 Estimation of combined ice and wind load on voerhead transmission lines McComber, P.;Morin, G.;Martin, R.;Vo Van, L.
  5. Proceedings of Third International Workshop on Atmospheric Icing of Structures The numerical calculation of the wind force coefficients on two-dimensional iced structures McComber, P.;Bouchard, G.
  6. Journal of Korea Water Resources Association v.29 no.1 Icing loads on fixed cables : I. Laboratory experiments Yoon, B.;Ettema, R.