摘要
采用LS-DYNA有限元软件建立极地物探船的船-水域-海冰有限元模型,计算得到该型船在设计破冰厚度和设计航速下的冰载荷量和冰载荷时程曲线,并进一步研究冰体单元尺寸对冰载荷计算结果的影响。研究表明,冰载荷最大值随冰体有限元单元尺寸减小而减小。对比相关冰载荷经验公式计算结果,最终确定合理的冰体单元尺寸。研究结果对极地物探船的结构设计和结构安全性评估具有重要意义。
The finite element model of ship-water-ice of polar geophysical exploration ship is established with the LS-DYNA finite element software,the ice load values and ice load time history curves of the ship under the design ice breaking thickness and design speed are calculated,and the influence of ice body element dimensions on ice load calculation results is further studied.The results show that the maximum value of ice load decreases with the element dimensions decrease of ice body finite element.The calculation results of relevant ice load empirical formulas are compared,and the reasonable ice body element dimensions are finally determined.The research results are of great significance for the structural design and structural safety evaluation of polar geophysical exploration ship.
作者
李爽
罗广恩
王陈阳
郑远昊
刘家奇
刘俊成
LI Shuang;LUO Guang’en;WANG Chenyang;ZHENG Yuanhao;LIU Jiaqi;LIU Juncheng(School of Naval Architecture&Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,Jiangsu,China)
基金
国家自然科学基金面上项目(编号:52171312)。
关键词
极地物探船
冰载荷
有限元法
冰体单元尺寸
polar geophysical exploration ship
ice load
finite element method
ice body element dimension
