Experimental investigation of wave slamming on an open structure supported elastically |
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| Authors: | Bing Ren Ming Liu Xue-lin Li Yong-xue Wang |
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| Institution: | 1.State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian,China;2.Department of Marine Strategy Research & Planning, National Ocean Technology Center,State Oceanic Administration,Tianjin,China |
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| Abstract: | The superstructures of marine structures supported by the elastic legs and located in the splash zone will subject to violent wave slamming and vibrate consequently during storms. A series of model tests are carried out to investigate the wave impacting on the open structures supported elastically. Three kinds of models with different natural frequencies are designed. The characteristics of the wave pressures on the three models are compared. The durations of the uplift forces and the corresponding accelerations of the structure during wave impact are analyzed simultaneously. The distributions of the peak impact pressures on the subfaces of the plates with different supporting stiffness are given. The relationship between the uplift force on the three models and the relative clearance are obtained. The spectral properties of the slamming loads on the three different structures are compared. The experimental results indicate that the behaviors of the impact pressures, the uplift forces and accelerations of the plates with small natural frequencies are obviously different from those of the plates with larger natural frequencies within the range of the experimental parameters. |
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