摘要
Abstract
As a newly emerging offshore wind turbine foundation in recent years,the suction tube guide frame foundation is widely used,but a mature floating standard is not formed.A series of reliability analyses such as static water force analysis during the floating process need to be conducted.Theoretical calculations and numerical simulation analysis are conducted on the static hydraulic force of the foundation of the four suction tube pipe rack,verifying the feasibility of using the foundation's own buoyancy for buoyancy transportation.In terms of theoretical calculations,the force analysis and floating state analysis of the air floating structure formed by the suction tube guide frame foundation are carried out.The static stability of the air floating structure is compared with the numerical simulation method,and the initial stability height(GM),recovery force curve and other static hydraulic stability of the air floating structure are calculated and analyzed.At the same time,the influence of different draft depths of 9,10,and 11.5 m on the motion response of the foundation is studied.The results show that the period of heave motion is 6.5～7 s,and the period of roll motion is approximately 10.5 s.The draft depth mainly affects heave motion and has little effect on sway motion.At the same draft depth,the amplitude of the foundation's swinging motion is greater than its heave motion.After calculation and simulation analysis,the static stability and motion response of the foundation can meet the requirements of buoyancy,which provides important theoretical basis and technical support for further analysis of buoyancy in the future.关键词
四筒吸力筒导管架/气浮结构/静水力分析/理论计算/数值模拟Key words
four-bucket suction jacket foundation/air-floating structure/static hydrodynamic analysis/theoretical calculation/numerical simulation分类
能源与动力
