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Shunying Ji (Dalian University of Technology)
Tuesday 05 December 2017, 14:30-15:30
Breaking Pattern of Ice Cover during its Collision with Ship/Offshore Structures
- đ¤ Speaker: Shunying Ji (Dalian University of Technology)
- đ Date & Time: Tuesday 05 December 2017, 14:30 - 15:30
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Co-authors: Xue Long and Shuai Kong
During the interactions between ice covers and ship/offshore structures, the ice cover is broken into small fragments. The breaking pattern of ice cover is dominated by the geometric properties of ship/offshore structures, besides the ice parameters of thicknesses, strengths, drifting velocities. Meanwhile, the breaking pattern of ice cover has a close relationship with the ice loads on the structures. To research the properties of ice loads, , the breaking patterns of ice covers and the ice loads during the actions on the ship hulls and the fixed jacket platform piles are concluded by the field observations in the Antarctic navigation and the Bohai Sea, respectively. Moreover, the discrete element method (DEM) with bonded spheres is also adopted to model numerically the breaking patterns of ice cover. The influences of the breaking patterns of ice cover on the magnitude and frequency of ice loads are discussed based on the DEM results. The field data and the DEM results were compared to determine the relationship between the breaking length of ice cover and the ice load.
Keywords: Ice cover, Breaking pattern, Jacket platform, Ship hull, Discrete element method (DEM),
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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