PREDICTION METHOD FOR MAXIMUM VELOCITY PROFILE IN WAVE BOUNDARY LAYER BASED ON VELOCITY DEFECT FUNCTIONS

    公开(公告)号:US20230375591A1

    公开(公告)日:2023-11-23

    申请号:US18319148

    申请日:2023-05-17

    CPC classification number: G01P5/001 G06F17/12

    Abstract: The present invention discloses a prediction method for a maximum velocity profile in a wave boundary layer based on velocity defect functions. The method overcomes the theoretical defects of the existing velocity defect functions. That is, the velocity profile in a turbulent wave boundary layer cannot be realized; and in addition, without the assumption of linear wave conditions, the method is suitable for nonlinear waves and at the same time, for a small A/k, range, and can be extended to the analysis and prediction for the maximum velocity profile under the condition that the spatial distribution of roughness elements of gravel seabed, etc. obviously affects the flow structure of the boundary layer. The present invention can be directly applied to the analysis and prediction for physical quantities/processes, such as characteristics of the wave boundary layer, stress of underwater structures, and starting and transport of submarine sediments.

    AN INTEGRATED VESSEL WITH WAVE COMPENSATION CAPABILITY FOR TRANSPORTING COMPLETED OFFSHORE WIND TURBINES AND INSTALLATION METHOD THEREOF

    公开(公告)号:US20250092858A1

    公开(公告)日:2025-03-20

    申请号:US18565263

    申请日:2023-05-16

    Abstract: An integrated vessel with wave compensation capability for transportation of completed offshore wind turbines includes a wind turbine conveyor system, a dynamic positioning propeller system, and a six-degree-of-freedom parallel manipulator system, as well as a foundation monopile of a fixed wind turbine arranged in the hull; the completed offshore wind turbines are fixed on the wind turbine conveyor system by multiple wind turbine stabilizing blocks, and a clamping system is equipped in the six-degree-of-freedom parallel manipulator system. The invention uses the conveyor system to transfer and the clamping system to clamp the completed wind turbine, as well as the six-degree-of-freedom parallel manipulator system to transport, which reduces the difficulty of the operation, improves the automation of the installation process, and reduces the labor cost of the wind turbine installation; the invention reduces the difficulty of the installation process, and improves the efficiency of the wind turbine installation.

Patent Agency Ranking