非规则激励下浅水液舱晃荡数值模拟  

Numerical Simulation of Shallow-water Sloshing Motion Under Irregular Excitations

作　　者：石留斌 李廷秋[1] 苏焱 SHI Liubin;LI Tingqiu;SU Yan(School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2022年第3期438-442,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金重点国际合作研究项目(51720105011)。

摘　　要：为探究非规则激励作用下浅水液舱晃荡运动规律,文中采用Boussinesq数值模型研究船舶横荡运动时液舱内部晃荡运动,使用JONSWAP谱构建外部非规则激励,完成非规则激励下二维液舱晃荡运动的数值模拟.数值计算结果表明,舱壁处浅水液舱晃荡运动能量大小与有义波高成正相关,且波能分布集中于奇数阶固有频率附近.In order to explore the sloshing motion law of shallow water tank under irregular excitation,Boussinesq numerical model was used to study the sloshing motion inside the tank when the ship is swaying.JONSWAP spectrum was used to construct external irregular excitation,and the numerical simulation of sloshing motion of two-dimensional liquid tank under irregular excitation was completed.The numerical results show that the sloshing energy of the shallow water tank at the bulkhead is positively correlated with the significant wave height,and the wave energy distribution is concentrated near the odd-order natural frequency.

关 键 词：非规则激励 浅水液舱晃荡 BOUSSINESQ方程 

分 类 号：U663.85[交通运输工程—船舶及航道工程]