Experimental Investigation of Wave Slamming on An Open Structure Supported Elastically

• Published in: China ocean engineering Vol. 30; no. 6; pp. 967 - 978
• Main Author: 任冰 刘明 李雪临 王永学
• Format: Journal Article
• Language: English
• Published: Nanjing Chinese Ocean Engineering Society 01.12.2016; Springer Nature B.V; State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China%Department of Marine Strategy Research & Planning, National Ocean Technology Center, State Oceanic Administration, Tianjin 300112, China
• Subjects: Coastal Sciences; Engineering; Fluid- and Aerodynamics; Forces (mechanics); Impact analysis; Impact loads; Legs (structural); Marine & Freshwater Sciences; Numerical and Computational Physics; Oceanography; Offshore Engineering; Offshore structures; Plates; Resonant frequencies; Simulation; Slamming; Splash zone; Stiffness; Storms; Superstructures; Technical Notes; Uplift; Wave forces; 冲击压力; 固有频率; 开放实验; 弹性支撑; 拍击; 支撑结构; 模型试验; 波浪作用; wave impact; acceleration; supported elastically; hydro-elasticity
• ISSN: 0890-5487; 2191-8945
• DOI: 10.1007/s13344-016-0063-1

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.