摘要
对大陆坡上的油气资源开采时,浮式平台所处位置处的海底地形可能出现较大坡度,需布置非对称的系泊系统。文章基于一个Spar平台,针对平台两侧系泊系统锚固点所处地形变化而造成水深不同的情况,优化设计一套非对称的系泊系统,且非对称系泊系统的水平刚度较大。在时域范围内建立耦合数值模型对平台的运动响应和系泊系统动力特性进行研究和分析。文中研究表明,采用非对称系泊系统的平台在纵荡、横荡和纵摇方向上的响应幅值和系泊张力均符合工程要求,且能改善平台运动性能。
When mining the oil and gas resources on the continental slope, the seabed topography at the location where the floating platform is located may have a relatively steep gradient, so an asymmetrical mooring system may be deployed. Based on a Spar platform, an asymmetrical mooring system is optimized to match the different anchor depth, and the horizontal stiffness of asymmetrical mooring system is relatively high. The motion response of platform and the dynamic characteristics of mooring system are compared through the coupled numerical simulation model in time domain. The results show that the response amplitude and mooring tension of platform with asymmetrical mooring system in the surge, sway and pitch are all in line with the engineering requirements, and it could improve the global motion performance of Spar platform.
作者
乔东生
闫俊
汤威
秦宇
宁德志
欧进萍
QIAO Dong-sheng;YAN Jun;TANG Wei;QIN Yu;NING De-zhi;OU Jin-ping(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《船舶力学》
EI
CSCD
北大核心
2019年第12期1463-1474,共12页
Journal of Ship Mechanics
基金
Supported by National Key R&D Program of China [Grant NO.2016YFE0200100]
National Natural Science Foundation of China [Grant Nos.51979030
51890915
51490672
51761135011]
Fundamental Research Funds for the Central Universities~~
关键词
非对称系泊系统
SPAR平台
动力响应
系泊张力
asymmetric mooring system
Spar platform
dynamic response
mooring line tension