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论文类型：期刊论文

发表时间：2022-06-29

发表刊物：海洋工程

期号：2

页面范围：1-9

ISSN号：1005-9865

摘要：During the interaction between sea ice and multi-leg conical offshore platform structure, the global ice load has obvious shadowing effect under the influence of ice drifting direction and pile orientation. In this study, the discrete element method ( DEM) with bonding-breaking effect is developed to simulate the ice load on multi-leg conical structure with GPU-based parallel computational technique. The attenuation coefficient of ice load on each pile is determined to analyze the shadowing effect of global ice load in various ice drifting directions. Finally, the mechanism of shadowing effect of global ice load on multi-leg platform is discussed considering the effect of free boundary. This work can be of benefit to the analysis of ice load on multi-leg platform, ice-induced vibration of offshore structure and the design of structure in ice field.

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