Motion of Cylindrical Buoy and Its Mooring Line Tension by Installation Depth under the Action of Waves

부설 수심의 변화에 따른 파랑 중 원통형 부체의 운동 및 계류삭 장력 해석

  • Published : 2004.11.01


This paper presents a method analyzing the motion of cylindrical buoy moored at 2 points and tensions action on each mooring line under the action of periodic waves. It was found that submersible buoy was more effective than floating one in the severe conditions considering its dynamic motions, wave forces, and mooring line tensions. The wave induced its dynamic responses and mooring line tensions peak when the ratio d/${\lambda}$ of the buoy length d to the waves length ${\lambda}$ was 0.66 due to its natural frequency. The results of this study were in agreement with the existing measurement ones, however, further verifications are needed considering resonance of cylindrical buoy and its displacements to wave height by a series of model tests.


  1. Colbourne D.B. and J.H. Allen(2001): Observations on motions and loads in aquaculture cages from full scale and model scale measurements, aquacultural engineering 24, 129-148
  2. Kolarov, T. P.(1997): Buoys movement under sea motion conditions, Proceedings of the Third International Workshop on Methods for the Development and Evaluation of Maritime Technologies, Rostock, 147-167
  3. 木村晴保.大井手伸一(1997): 水面下に水平に兩端 係留した圓筒浮體の波による動搖に關す實驗, 日本水産工學會講演會集, 155-158
  4. 木村晴保.大井手伸一(1998): 水面下に水平に兩端 係留した圓筒浮體の波による運動と係留素張 の算定法, 水産工學 35(2), 167-176
  5. 堀川淸司.渡邊晃(1972): 圓筒形浮體と淺海波の相 互作用, 第19回海岸工學講演會論文集, 419-425
  6. 堀川淸司.渡邊晃.丸山康樹(1974): 係留圓筒形浮 體の應答特性と索張力, 第21回海岸工學講演 會論文集, 507-513
  7. 渡邊晃(1978): 係留圓筒浮體の應答特性と索張力, 第25回海岸工學講演會論文集, 377-381
  8. 渡邊晃.島田保之.堀川淸司(1979): 不規則波に對 する繫留圓筒浮體の應答, 第26回海岸工學講 演會論文集, 480-484
  9. 김태호(2000): 어업용 프레임 구조물의 역학적 특성에 관한 연구, 부경대학교 대학원 공학박사학위 논문, 118-119