摘要
为研究海流作用下舰船锚链的运动响应,在锚链微元运动控制方程基础上,计入其受到的海流作用力和弹性形变等因素影响,建立锚链运动模型并进行了仿真,进而与经典悬链线方程法的计算结果对比分析。结果表明,海流作用会对锚链悬链段长度、顶端位移以及各点处的张力等产生影响,且这一影响将随着海流流速的增大而愈加明显,实际工程中应予以考虑。建立的舰船锚链运动模型及结论分析,对舰船锚泊安全的理论研究和工程实践具有一定参考价值。
Considering the influence of current force,elastic deformation and other factors,a motion model of the anchor chain is established to study the motion of anchor chain in current on the basis of the motion control equation of the chain element.The simulation results of the motion model are compared with the calculation results of the classical catenary equation.The results show that current will lead to the length of the catenary chain,the displacement of the top and the tension at each point increasing.With the current velocity increasing,the impacts are more and more significant,which cannot be ignored in the actual project.The obtained motion model and conclusion analysis provide reference for the theoretical study and engineering practice of anchorage safety.
作者
苑志江
王涌
蒋晓刚
YUAN Zhi-jian;WANG Yong;JIANG Xiao-gang(Dalian Naval Academy,Dalian 116018,China)
出处
《舰船科学技术》
北大核心
2020年第3期72-76,共5页
Ship Science and Technology
基金
国家自然科学基金资助项目(51809272)
国防预先研究课题(302030117)。
关键词
海流
锚链
运动模型
张力
current
anchor chain
motion model
tension
