Ship & Boat ›› 2023, Vol. 34 ›› Issue (03): 115-122.DOI: 10.19423/j.cnki.31-1561/u.2023.03.115

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Numerical Simulation of Collision Between a Polar Ship Bow and Floating Ices

LIU Xin1, FU Yuxiao2, JIANG Wujie3, NI Baoyu2,*   

  1. 1. The 92942 Unit of PLA, Beijing 100161, China;
    2. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
    3. School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
  • Received:2022-08-02 Revised:2022-08-29 Online:2023-06-25 Published:2023-07-06

极地某构型船首与浮冰碰撞的数值模拟研究

刘昕1, 傅昱晓2, 蒋武杰3, 倪宝玉2,*   

  1. 1.中国人民解放军92942部队 北京 100161;
    2.哈尔滨工程大学 船舶工程学院 哈尔滨 150001;
    3.上海交通大学 船舶海洋与建筑工程学院 上海 200030
  • 通讯作者: 倪宝玉（1986-）,男,博士,教授。研究方向：极地船舶设计与制造、冰-水-船耦合运动学、高速砰击动力学、气泡动力学等。
  • 作者简介:刘昕（1986-）,女,硕士,工程师。研究方向：舰船总体设计与研究。傅昱晓（1999-）,男,本科。研究方向：极地船舶设计与制造。蒋武杰（1985-）,男,硕士,工程师。研究方向：绿色船舶水动力优化。

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Abstract: In recent years, the polar navigation equipment is of increasing concern with the decreasing coverage and thickness of the arctic sea ice. Compared to traditional navigation areas, the sea ice will interact frequently with the ships in arctic regions, which is also one of the main causes of the fatigue damage of the hull structure. It is therefore of significant importance for the prediction of the dynamic structural response of ships sailing in Polar Regions to simulate the dynamic process of the ship-ice collision and analyze the influencing factors. The ice material parameters that can be applied to the commercial software LS-DYNA are proposed, with feasibility verification according to the P-A curve of ISO. The modeling of the bow is then established to simulate the collision between the bow and the floating ice under the operation conditions with bow speeds of 5kn, 6kn and 7kn, respectively, and a floating ice size of 10m×10m×0.6m, and then analyze the impact of the parameters.

Key words: polar ice material, feasibility verification, numerical simulation, ship-ice collision

摘要： 近年来, 随着北极海冰的覆盖面积和厚度不断减小,极地航行装备越来越受到关注。北极航区相较于传统航区,海冰与船舶进行更频繁的相互作用,是造成船体结构疲劳损伤的主要原因之一。因此模拟海冰与船碰撞的动态过程,并对影响因素进行分析,对于预报在极区航行的船舶结构动力响应有着重要作用。文章提出了可应用于商业软件LS-DYNA的模拟冰材料参数,并根据ISO的P-A曲线验证了其可行性,构建了船首模型;在船首航行方向速度分别为5 kn、6 kn和7 kn,浮冰尺寸为10 m×10 m×0.6 m的工况下,模拟船首与浮冰碰撞的过程并进行参数影响分析。

关键词: 极地冰材料, 可行性验证, 数值模拟, 船冰碰撞

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