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海上超长管道浮运受力和变形特性 被引量:1
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作者 刘泽瀚 俞缙 +2 位作者 王元清 李彬鹂 王磊 《水利水运工程学报》 CSCD 北大核心 2023年第6期142-151,共10页
随着中国经济发展,沿海城市对自然资源的需求日益增长,使用超长管道进行跨海域自然资源运输对沿海城市经济发展具有重大意义。但当前跨海超长管道的设计与铺设主要依靠经验与工程类比方法。为对海上超长管道浮运过程提供科学依据和实测... 随着中国经济发展,沿海城市对自然资源的需求日益增长,使用超长管道进行跨海域自然资源运输对沿海城市经济发展具有重大意义。但当前跨海超长管道的设计与铺设主要依靠经验与工程类比方法。为对海上超长管道浮运过程提供科学依据和实测数据,依托厦门同安湾海域管道浮运施工项目开展海上超长管道浮运过程的流固耦合数值模拟研究。结果表明:无论在水流还是波浪作用下,海上管道浮运时管身的应变及位移与管道的长细比、相对流速成正比,与拖船数量、管身弯折角度成反比;每增加1艘拖船管身最大位移约减小一半,改变拖船数量或拖力可有效控制管道变形;可根据管道浮运阻力和变形计算结果合理安排拖船,保证管道浮运施工安全;波流联合作用时管道变形较大,应选择海上波浪较小时进行管道浮运。 展开更多
关键词 管道 海上浮运 受力分析 变形 流固耦合
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Motion Characteristics of Novel Floating Foundation for Offshore Wind Turbine 被引量:1
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作者 李嘉文 唐友刚 王宾 《Transactions of Tianjin University》 EI CAS 2016年第1期57-63,共7页
A novel floating foundation to support the NREL offshore 5 MW wind turbine was designed conceptually by combining the characteristics of barge and Spar. The main focus was structural design and hydrodynamic modelling.... A novel floating foundation to support the NREL offshore 5 MW wind turbine was designed conceptually by combining the characteristics of barge and Spar. The main focus was structural design and hydrodynamic modelling. Based on this novel floating foundation, the hydrodynamic performance was investigated in the frequency domain and time domain by using the wave analysis software Hydro D and Deep C from Det Norske Veritas. The frequency domain analysis was conducted to investigate the effects of the incident wave angle and water depth. The time-domain analysis was carried out to evaluate the response of the floating foundation under a selected operational condition. The hydrodynamic performances of this floating foundation with respect to time series and response spectra were also investigated in this study. 展开更多
关键词 offshore wind turbine floating foundation frequency domain analysis time domain analysis
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