SPH simulation of ship behaviour in severe water-shipping situations
SPH simulation of ship behaviour in severe water-shipping situations
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DOI：
10.1016/j.oceaneng.2016.04.026
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发表时间：
2016-07
影响因子：
5
通讯作者：
K. Kawamura;H. Hashimoto;A. Matsuda;D. Terada
中科院分区：
文献类型：
--
作者：
K. Kawamura;H. Hashimoto;A. Matsuda;D. Terada
渔船干舷较小，在恶劣海况下容易发生水上航行事故。在最坏的情况下，水冲击和积水效应可能使渔船不稳定并倾覆。因此，确保渔船在水上航行情况下的安全是一个重要的课题，但水上航行情况下的水行为是不容易预测的，其中越浪，水冲击，大变形的自由表面和船舶运动的强耦合出现。本文将基于GPU的SPH仿真应用于船舶在恶劣水上航行条件下的6自由度运动预报。然后，通过与专用系留和自由运动试验的比较，系统地研究了SPH方法的预测精度。
Fishing vessels, having relatively small freeboard, are prone to encounter a water-shipping event in severe sea states. The water impact and accumulated water effects could make fishing vessels be unstable and capsize in the worst-case scenario. Therefore securing the safety of fishing vessels under water-shipping situations is an important subject, but it is not easy to predict the water behaviour in water-shipping situations, where over-topping, water impact, largely deformed free-surface and strong coupling with ship motions appear compositely. In this paper, SPH simulations using GPU are applied to the prediction of 6DoF ship motions in severe water-shipping condition. Then the prediction accuracy of the SPH method is systematically investigated through comparisons with dedicated captive and free motion tests.