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典型文献
An Improved Time Domain Approach for Analysis of Floating Bridges Based on Dynamic Finite Element Method and State-Space Model
文献摘要:
The floating bridge bears the dead weight and live load with buoyancy,and has wide application prospect in deep-water transportation infrastructure.The structural analysis of floating bridge is challenging due to the complicated fluid-solid coupling effects of wind and wave.In this research,a novel time domain approach combining dynamic finite element method and state-space model(SSM)is established for the refined analysis of floating bridges.The dynamic coupled effects induced by wave excitation load,radiation load and buffeting load are carefully simulated.High-precision fitted SSMs for pontoons are established to enhance the calculation efficiency of hydrodynamic radiation forces in time domain.The dispersion relation is also introduced in the analysis model to appropriately consider the phase differences of wave loads on pontoons.The proposed approach is then employed to simulate the dynamic responses of a scaled floating bridge model which has been tested under real wind and wave loads in laboratory.The numerical results are found to agree well with the test data regarding the structural responses of floating bridge under the considered environmental conditions.The proposed time domain approach is considered to be accurate and effective in simulating the structural behaviors of floating bridge under typical environmental conditions.
文献关键词:
作者姓名:
XIANG Sheng;CHENG Bin;ZHANG Feng-yu;TANG Miao
作者机构:
Department of Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure,Shanghai Jiao Tong University,Shanghai 200240,China;College of Civil Engineering,Fuzhou University,Fuzhou 350108,China
引用格式:
[1]XIANG Sheng;CHENG Bin;ZHANG Feng-yu;TANG Miao-.An Improved Time Domain Approach for Analysis of Floating Bridges Based on Dynamic Finite Element Method and State-Space Model)[J].中国海洋工程(英文版),2022(05):682-696
A类:
buffeting,pontoons
B类:
Improved,Time,Domain,Approach,Analysis,Floating,Bridges,Based,Dynamic,Finite,Element,Method,State,Space,Model,floating,bears,dead,weight,live,buoyancy,wide,application,prospect,deep,water,transportation,infrastructure,structural,analysis,challenging,due,complicated,fluid,solid,coupling,effects,wind,wave,In,this,research,novel,domain,approach,combining,finite,element,method,state,space,model,established,refined,bridges,coupled,induced,by,excitation,radiation,carefully,simulated,High,precision,fitted,SSMs,enhance,calculation,efficiency,hydrodynamic,forces,dispersion,relation,also,introduced,appropriately,phase,differences,loads,proposed,then,employed,responses,scaled,which,been,tested,under,real,laboratory,numerical,results,found,agree,well,data,regarding,considered,environmental,conditions,accurate,effective,simulating,behaviors,typical
AB值:
0.546871
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