摘要
由于北极地区冰情复杂,分布着大量无规则浮冰,因此极地运输船在航行过程中难免会与冰区浮冰发生碰撞,引起船体结构响应。本文基于Ls-dyna软件构建船水冰全耦合模型,对极地运输船舶与规则层冰和不规则层冰发生碰撞分别开展数值模拟,对冰厚和航速2种不同工况条件下的船首结构损伤变形及碰撞力均值进行对比分析。研究发现,不规则层冰载荷下引起的船体结构响应更为剧烈,碰撞力均值更大,为北极冰区运输船的航行安全提供了参考。
Due to the complex ice situation in the Arctic,a large number of irregular ice floes are distributed,so it is inevitable that polar transport ships will collide with ice floes in the process of navigation,causing the hull structure response.In this paper,based on Ls-dyna software,the ship water ice full coupling model is built to simulate the collision between polar transport ship and regular ice layer and irregular ice layer respectively.The damage deformation of bow structure and the mean value of collision force under two different conditions of ice thickness and speed are compared and analyzed respectively.It is found that the response of ship structure under irregular ice load is more obvious The results provide a reference for the navigation safety of transport ships in Arctic ice area.
作者
徐张
李锐
丁琦
XU Zhang;LI Rui;DING Qi(China Classification Society,Shanghai 200135,China;Jiangsu University of Science and Technology,Naval Architecture and Ocean Engineering College,Zhenjiang 212000,China;State Key Laboratory ofNavigation and Safety Technology,Key Laboratory of Marine Technology Ministry of Communications,PRC,Shanghai Ship and Shipping Research Institute,Shanghai 200135,China)
出处
《舰船科学技术》
北大核心
2021年第10期10-15,共6页
Ship Science and Technology
关键词
船水冰全耦合
规则层冰
不规则层冰
结构响应
碰撞力均值
ship water-ice fully coupled
regular ice
irregular ice
structural response
mean value of collision force
