摘要
锚索的静力特性对浮箱系泊系统安全性及稳定性起着至关重要的作用。因此,有必要对浮箱系泊系统的静力特性进行深入研究,进一步为系泊系统设计计算提供参考。基于弹性悬链线理论及多点系泊系统静力计算方法,结合大型水动力学软件AQWA,选取一典型的矩形浮箱式结构系泊系统为数值仿真算例,并根据浮箱基本参数及相关技术要求,分别建立张紧式和悬链式系泊系统静力分析模型。详细研究了系泊缆索张开角度、系泊半径、缆索材料、张紧程度等关键敏感性参数对系泊系统缆索张力及位移静力特性的影响作用。研究结果表明:在讨论范围内,增大系泊半径、使用合成纤维索、适当增加预张力,可以加强对浮体运动的约束,进一步提高系泊系统的稳定性,增强系泊系统适应环境的能力。
The static characteristics of anchor cables play an important role in the safety and stability of the pontoon mooring system.Therefore,it is necessary to analyze the static characteristics of the pontoon mooring system,which can provide a theoretical reference for the design and calculation of the mooring system.The theory of elastic catenary and the static calculation method of multi-point mooring system are adopted to study the mooring system of a rectangular pontoon structure by using software AQWA.Based on the basic parameters of the pontoon structure and related technical requirements,the taut and catenary mooring system numerical calculation model for static analysis are established,and the influence of the key sensitivity parameters such as the angle of the mooring cables,the mooring radius and the tension degree and material of the cable on the cable static characteristics of the mooring system are studied in detail.The results show that the increase of the mooring radius,the using of synthetic fiber cable,the appropriate increase in pre-tension can strengthen the constraints for the movement and further improve the stability of the mooring system,increasing the adaptability of the mooring system to the environment.
作者
陈涛
谢灿荣
巫志文
申权
陈攀
CHEN Tao;XIE Canrong;WU Zhiwen;SHEN Quan;CHEN Pan(Nanning Branch,China Railway Eryuan Engineering Group Co.Ltd,Nanning 530022,China;College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,Nanning 530004,China)
出处
《人民长江》
北大核心
2018年第19期67-75,共9页
Yangtze River
基金
国家自然科学基金项目(5158164
41672296)
博士后基金项目(2017M619578)
广西防灾减灾与工程安全重点实验室系统性研究项目(2016ZDX008)
广西自然科学基金创新研究团队项目(2016GXNSFGA380008)
关键词
浮箱
多点系泊系统
关键敏感性参数
静力分析
稳定性
pontoon
multi-point mooring system
key sensitivity parameters
static analysis
stability
