摘要
由于破冰船航行区域及工作任务的特殊性,对于海冰与船体的相互作用越来越受到重视。在一定理想化假设的基础上对破冰船在直行情况下的连续破冰模式运用数值方法进行模拟,然后得到破冰船破冰过程中的冰力时历曲线,并分析了相关破冰参数对连续破冰作用下破冰形状及平均冰力的影响程度。模拟结果表明:冰厚、破冰速度与离散间隔都对破冰半径和冰力有一定的影响;而冰厚则是影响破冰形状及冰力最为关键的因素;得到的连续破冰形状基本符合实际,可以为后续研究破冰船在冰区航行时的运动及破冰能力提供基础。
At present,because of the particularity of the icebreaker sailing region and tasks,more and more attention is given to the interaction between ice and icebreaker.However,the study of icebreaker is limited in China,so more efforts are needed.Based on some assumptions,continuous breaking pattern of the icebreaker which is sailing in line is simulated by a numerical method,and then time history of ice force in the process of ice breaking is achieved.Influences of some ice breaking parameters about ice breaking shape and mean ice force are analyzed.Continuous ice breaking shape can meet the practical need.Results lay the foundation for later studies of icebreaker motions and ice-breaking capacity as well.
出处
《海洋工程》
CSCD
北大核心
2013年第4期68-73,共6页
The Ocean Engineering
基金
国家自然科学基金资助项目(51109046)
关键词
破冰船
冰力
连续破冰模式
破冰参数
icebreaker
ice force
continuous breaking pattern
ice-breaking parameters
