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。
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 /3is 10 m,Tpis respectively 15. 4,14. 1,12. 8,11. 8 and 10. 6 s respectively; when H1 /3is 8 m,Tpis 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.
出处
《海洋工程》
CSCD
北大核心
2015年第5期10-15,共6页
The Ocean Engineering
