| 半潜式平台气隙量数值预报方法研究 |
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| 引用本文： | 王志东,刘美妍,凌宏杰,戴挺,祝启波.半潜式平台气隙量数值预报方法研究[J].海洋工程,2015,33(5):10-16. |
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| 作者姓名： | 王志东 刘美妍 凌宏杰 戴挺 祝启波 |
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| 作者单位： | 江苏科技大学 船舶与海洋工程学院，镇江 212003;江苏科技大学 船舶与海洋工程学院，镇江 212003;江苏科技大学 船舶与海洋工程学院，镇江 212003;大连船舶重工集团 设计研究所，大连 116052;江苏科技大学 船舶与海洋工程学院，镇江 212003 |
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| 摘 要： | 以半潜式平台为研究对象,基于势流理论开展了有义波高Hs=10 m,谱峰周期Tp=15.4、14.1、12.8、11.8及10.6 s,有义波高Hs=8 m,谱峰周期Tp=10.1及9.6 s,浪向角β=0°、30°、45°、60°及90°,共计35个工况下半潜式平台气隙量的数值预报技术研究,计算结果表明:波浪的有义波高、特征周期及浪向角对半潜式平台气隙量的影响较大,半潜式平台甲板边缘易出现负气隙,同时平台垂向固有周期应避免与波浪的统计周期相同或接近。
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| 关 键 词： | 半潜式平台 气隙量 势流理论 JONSWAP谱 |
Air gap prediction of a semi submersible platform |
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| WANG Zhidong,LIU Meiyan,LING Hongjie,DAI Ting and ZHU Qibo.Air gap prediction of a semi submersible platform[J].Ocean Engineering,2015,33(5):10-16. |
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| Authors: | WANG Zhidong LIU Meiyan LING Hongjie DAI Ting and ZHU Qibo |
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| Institution: | Jiangsu University of Science and Technology, Zhenjiang 212003;Jiangsu University of Science and Technology, Zhenjiang 212003;Jiangsu University of Science and Technology, Zhenjiang 212003;Dalian Shipbuilding Industry Design & Research Institute, Dalian 116052;Jiangsu University of Science and Technology, Zhenjiang 212003 |
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| Abstract: | The research object is a semi-submersible platform, and the numerical prediction technology study is made on the air-gap response based on potential flow theory under total 35 conditions in 7 kinds of sea states. When H1/3 is 10m,Tp is respectively 15.4, 14.1, 12.8, 11.8 and 10.6 s respectively; when H1/3 is 8m, Tp is 10.1 and 9.6 s respectively, and sea state is 0°, 30°, 45°, 60°and 90° respectively. The results show that the significant wave height, eigenperiod and wave-to-course angle affect the amount of the semi-submersible platform gap greatly. The deck edge of the semi-submersible platform is prone to have negative air gap. At the same time, the vertical natural period of the platform should avoid being close to the measurement period of the waves . |
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