黄家煜, 周利, 刘仁伟, 等. 航道碎冰条件下极地船舶冰压力分布特性[J]. 中国舰船研究, 2024, 19(2): 53–61. doi: 10.19693/j.issn.1673-3185.03276
引用本文: 黄家煜, 周利, 刘仁伟, 等. 航道碎冰条件下极地船舶冰压力分布特性[J]. 中国舰船研究, 2024, 19(2): 53–61. doi: 10.19693/j.issn.1673-3185.03276
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HUANG J Y, ZHOU L, LIU R W, et al. Distribution characteristics of polar ship ice pressure in pack ice channel[J]. Chinese Journal of Ship Research, 2024, 19(2): 53–61 (in Chinese). doi: 10.19693/j.issn.1673-3185.03276
Citation: HUANG J Y, ZHOU L, LIU R W, et al. Distribution characteristics of polar ship ice pressure in pack ice channel[J]. Chinese Journal of Ship Research, 2024, 19(2): 53–61 (in Chinese). doi: 10.19693/j.issn.1673-3185.03276
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航道碎冰条件下极地船舶冰压力分布特性

Distribution characteristics of polar ship ice pressure in pack ice channel

    摘要
  • 摘要:
    目的 为研究船舶与碎冰作用过程中船体冰压力的分布情况，对航道碎冰条件下的极地船舶进行数值模拟分析。
    方法 采用离散元法（DEM）对船舶与碎冰进行建模，假设碎冰是由理想的二维圆盘构成，并考虑海流对碎冰单元的浮力、拖曳力及附加质量的影响；利用MT Uikku号冰水池模型试验结果对数值模型进行验证，对比分析不同航速和冰况对船体区域冰压力的影响。
    结果 结果显示，当船舶在航道碎冰中运动时，冰载荷主要集中在船首；船首区域的冰压力随冰厚、航速和碎冰密集度的增加而增大，其中冰厚是影响冰压力幅值最大的因素；碎冰区航行船舶的首部区域冰压力影响最大，船首过渡区冰压力影响显著。
    结论 所提数值分析方法可为极地船舶安全航行和结构设计提供一定的参考。

     

    Abstract:
    Objective In order to study the distribution of ship ice pressure during the interaction between an icebreaker and pack ice, a numerical simulation analysis is carried out for polar ships in pack ice channels.
    Method The discrete element method (DEM) is used to model the ship and pack ice. It is assumed that the pack ice is composed of an ideal two-dimensional disc, and the effects of the ocean current on the buoyancy, drag and additional mass of the pack ice are taken into account. The numerical model is validated by comparison with the experimental results of an MT Uikku model, and the effects of different speeds and ice conditions on the ship ice pressure in the pack ice area are analyzed.
    Results The results show that the ice load is mainly concentrated on the bow of the ship when it moves in the pack ice channel. The ice pressure in the bow area increases with the increase in ice thickness, speed and the density of pack ice, among which ice thickness is the most important factor affecting the amplitude of the ice pressure. The ice pressure in the pack ice area has the greatest influence on the ice pressure in the bow area, and the ice pressure in the bow transition area has a significant effect.
    Conclusion The numerical analysis method can provide certain references for the safe navigation and structural design of polar ships.

     

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