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TSHD ship opening simulation by discrete element method

delete2020-01-01
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PRE
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M
Martina Andrun *
D
Dario Ban
J
Josip Bašić
B
Boris Ljubenkov
DOI:10.1016/j.apor.2019.102001delete
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摘要

摘要

En 中文
This article studies a Split Trailing Suction Hopper Dredger (Split TSHD) with longitudinally-split hull, which symmetrically opens for gravity-driven unloading of the cargo while being exposed to various environmental conditions. Regular and failure hull openings are numerically simulated to investigate the ship stability and safety of cargo discharge procedures. Unsteady simulations of discharging were performed by the Discrete Element Method, while the ship hydrostatic properties are calculated using Radial Basis Functions. The dynamics of the righting moment and arm are simulated, which are affected by the cargo dynamics and the loss of displacement. Results of the numerical simulations indicate that cargo dynamics during the discharge should not be ignored, as it affects ship's transverse stability. An incoming wave combined with an opening failure of the hull could lead to serious loss of transverse stability.
Keyword:
Split TSHD
Discrete element method
Radial basis functions
Ship stability
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期刊

Applied Ocean Research 封面图
Applied Ocean Research
IF:
4.4
论文数:
4.2K
被引数:
1.3W

机构

U
University of Split
学者数:
4.4K
论文数: 4.0K
被引数: 3.7K
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