A Time-Domain Method for Hydroelastic Analysis of A Moored Oil Storage Vessel in Wind,Irregular Waves and Currents  

作　　者：FAN Tian-hui ZENG Fan-quan YAN Xin-kuan MA Yuan ZUO Wei-guang 

机构地区：[1]School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China [2]State Key Laboratory of Subtropical Building and Urban Science,South China University of Technology,Guangzhou 510641,China [3]Zhongnan Engineering Corporation Limited.,Changsha 410014,China [4]School of Marine Science and Engineering,South China University of Technology,Guangzhou 511442,China [5]North China University of Water Resources and Electric Power,Zhengzhou 450046,China

出　　处：《China Ocean Engineering》2024年第6期970-982,共13页中国海洋工程(英文版)

基　　金：financially supported by the Department of Natural Resources of Guangdong Province(Grant No.[2024]31);the National Natural Science Foundation of China(Grant No.52071145);the Natural Science Foundation of Guangdong Province,China(Grant No.2022B1515020071);the Fundamental Research Funds for the Central Universities(Grant No.2023ZYGXZR029).

摘　　要：The hydroelastic behavior of a moored oil storage vessel subjected to arbitrary time-dependent external loads,which include wind,waves,and currents with different incident directions,is investigated with the time-domain modal expansion method.First,the water boundary integral equations on the body surface of a quarter model,which can be obtained via the free-surface Green’s function method,are established.Then,the time-dependent elastic deflection of the moored oil storage vessel is expressed by a superposition of modal functions and corresponding modal amplitudes,and a Galerkin scheme is applied to derive the linear system of equations for the modal amplitudes.The second-order linear differential equations for modal amplitudes are solved via the fourth-order Runge−Kutta method.The present model is validated against existing frequency domain results for a truncated cylinder and a VLFS.Numerical calculations for the moored oil storage vessel are then conducted to obtain the time series of various modal amplitudes and elastic displacements of the measurement points and the corresponding spectra with different incident directions.

关 键 词：oil storage vessel time-domain hydroelastic analysis modal expansion method VLFS 

分 类 号：O17[理学—数学]