摘要
首先选取并验证合适的冰材料模型,通过建立冰排与破冰船有限元模型,应用非线性显式动力学软件Ls-dyna对破冰船在不同冰厚、不同船速条件下的连续式破冰过程进行数值模拟,并将不同冰况下仿真结果和经验公式计算得到的冰力值做对比研究。最后对各个经验公式中的主要参数进行敏感性分析,得出各个参数对冰阻力计算的影响差异程度,对冰阻力估算和船体结构设计具有重要参考价值。
Firstly,the appropriate ice material model was selected and verified.By establishing the relevant finite element model of level ice and icebreaker,the continuous icebreaking process of icebreaker under different ice thickness and different ship speeds was implemented by using nonlinear explicit power software Ls-dyna.The resistance of ice calculated from numerical simulation results and empirical formulas which were compared under different ice conditions.Finally,the sensitivity of the main parameters in each empirical formulation was analyzed,and the degree of difference in the impact of each parameter on the ice resistance calculation was obtained,which is of important reference value for ice resistance estimation and related hull structural design.
作者
张健
王凯民
许俊华
杜成忠
ZHANG Jian;WANG Kai-min;XU Jun-hua;DU Cheng-zhong(School of Navy Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Jiangsu New Yangzi Shipbuilding Co.,Ltd.,Taizhou 214500,China)
出处
《舰船科学技术》
北大核心
2019年第15期1-6,共6页
Ship Science and Technology
基金
国家自然科学基金资助项目(51579121)
中国博士后科学基金面上资助项目(2017M621663)
江苏省博士后科研资助项目(1701055B)
关键词
破冰船
冰阻力
数值仿真
经验公式
icebreaker
ice resistance
numerical simulation
empirical formulation
