Oscillating Performance of A Rigid Buoy Floating Between Two Ice Sheets with Finite Lengths  

作　　者：ZHAI Gang-jun LI Wen-bo MA Zhe 

机构地区：[1]School of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China [2]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China

出　　处：《China Ocean Engineering》2024年第6期1023-1033,共11页中国海洋工程(英文版)

摘　　要：Global warming has led to major melting of ice in the polar Arctic,making it possible to open Arctic shipping lanes.In this case,the large number of ice sheets are extremely dangerous for ship navigation,so in this paper,a body floating on water confined between two finite ice sheets is investigated.The linearized potential flow theory is adopted,and water is considered an incompressible ideal fluid with a finite depth of the fluid domain.The ice sheets are treated as elastic plates,and the problem is solved by matching eigenfunction expansion.The fluid domain is divided into subregions on the basis of the water surface conditions,and the velocity potential of the subdomains is expanded via the separated variable method.By utilizing the continuity of pressure and velocity at the interfaces of two neighboring regions,a system of linear equations is established to obtain the unknown coefficients in the expansion,which in turn leads to analytical solutions for different motion modes in different regions.The effects of different structural drafts,and different lengths of ice sheets on both sides,etc.,on the hydrodynamic characteristics of floats are analyzed.The amplitude of motion of the float is explored,as is the wave elevation between the ice sheets and the float.

关 键 词：floating body two finite ice sheets potential flow theory matching eigenfunction expansion 

分 类 号：O17[理学—数学]