摘要
耐波性是漂浮式结构物的重要性能之一。通过对某型半潜式平台所遭受的波浪载荷和运动响应进行分析,采用DNV的SESAM软件,利用势流理论方法进行求解。其中波浪谱选择JONSWAP谱,同时考虑了波浪的方向性。结合半潜式平台结构形式的特点,得到了不同浪向、不同波浪周期下的波浪剪切力、波浪分离力、波浪扭转力、波浪弯矩预报结果,以及平台甲板质心的各向加速度预报值。计算结果表明,该计算方法合理,结果可靠,半潜式平台的总体设计中应综合考虑波浪组成各因素之间的关系。
Seakeeping is one of the important properties of floating structures.By analyzing the wave load and motion response of a certain type of semi-submersible platform,the SESAM software of DNV is applied,and the potential flow theory method is used to solve the problem.The JONSWAP spectrum is selected for wave spectrum,and the directionality of the waves is also considered.Combined with the characteristics of the structure of the semi-submersible platform,the predicted results of wave shear force,wave separation force,wave torsion force and wave bending moment under different wave directions and different wave periods,as well as the acceleration values of the platform deck center of mass in all directions are obtained.The calculation results show that the calculation method is reasonable and the results are reliable.The overall design of the semi-submersible platform should comprehensively consider the relationship between various factors of wave composition.
作者
汪勇
WANG Yong(Marine Engineering and New Energy Research and Development Center,Nantong COSCO Shipping Shipyard Engineering Co.,Ltd.,Nantong 226006,China)
出处
《江苏航运职业技术学院学报》
2021年第4期70-75,共6页
Journal of Jiangsu Shipping College
基金
工业和信息化部深水半潜式支持平台研发专项(MC-201620-H01)。
关键词
半潜式平台
波浪载荷
运动响应
势流理论
semi-submersible platform
wave load
motion response
potential flow theory
