中国舰船研究2024，Vol.19Issue(2)：53-61,9.DOI:10.19693/j.issn.1673-3185.03276
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
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 comparis-on 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.关键词
极地船舶/冰载荷/碎冰/冰压力/离散元法Key words
polar ship/ice load/pack ice/ice pressure/discrete element method(DEM)分类
交通工程引用本文复制引用
黄家煜,周利,刘仁伟,丁仕风..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):53-61,9.基金项目
国家重点研发计划资助项目(2022YFE0107000) （2022YFE0107000）
国家自然科学基金面上项目资助(52171259) （52171259）
国家自然科学基金青年科学基金资助项目(52201323) （52201323）
工信部高技术船舶科研资助项目(工信部重装函[2021]342号) （工信部重装函[2021]342号）
