| Title |
Experimental Study on Wave-Induced Hydraulic Pressure subjected to Bottom of Floating Structures |
| Keywords |
wave-induced;hydraulic pressure;hybrid;floating structures;small-scale test;파압;부유구조체;하이브리드형;수리모형실험 |
| Abstract |
In this study, in order to investigate the wave-induced buoyancy effects, experimental studies were conducted on pontoon type floating structures. A series of small-scale tests with various wave cases were performed on the pontoon models. A total of four small-scale pontoon models with different lateral shapes and bottom details were fabricated and tested under the five different wave cases. Six hydraulic pressure gauges were attached to the bottom surfaces of the pontoon models and the wave-induced hydraulic pressure was measured during the tests. Finally, hydraulic pressures subjected to the bottoms of the pontoon models were compared with each other. As the results of this study, it was found that whereas the waffled bottom shape hardly influenced the wave-induced hydraulic pressure, the hybrid lateral shape significantly influenced the wave-induced hydraulic pressure subjected on the bottoms of floating structures. The air gap effects of the hybrid shape contribute to decreasing the wave-induced hydraulic pressure due to absorption of wave impact energy. Compared with box type, the hydraulic pressures of the hybrid type were about 83% at the bow, 74% at the middle, and 53% at the stern. |