Offshore Wind Floating Body Beam Layout for Lower Drag
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The beam member connecting the lower hulls of a floating body for an offshore wind turbine experiences significant drag forces due to tidal and ocean currents, which increases the load on the structure.
Innovation Solution
A floating body design with a beam member positioned within the height range between the upper and lower surfaces of each lower hull, featuring a rectangular cross-section and chamfered corners, which reduces the drag force by guiding currents smoothly and distributing stress evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a beam member is provided on the floating body to reduce stress concentration, then structural strength is improved, but drag force increases due to tidal currents and ocean currents
Solution Approach 1:
The beam member is positioned within the height range between the upper and lower surfaces of the lower hulls, transitioning from a conventional external positioning to an internal spatial arrangement. This dimensional repositioning allows the beam to fulfill its reinforcing function while minimizing exposure to horizontal current flows, thereby reducing drag force.
Solution Approach 2:
The beam member is strategically positioned at specific locations within the lower hull structure where stress concentration occurs. By localizing the reinforcement to these critical areas rather than providing uniform structural addition, the design achieves maximum strength improvement with minimum drag penalty.
2Strength
If the beam member is positioned externally to provide reinforcement, then structural strength is improved, but the drag force from tidal currents increases
Solution Approach 1:
The beam member is repositioned from an external location to an internal position within the height range of the lower hulls. This spatial relocation in the vertical dimension allows the beam to maintain its reinforcing function while being shielded from direct exposure to horizontal current flows, thereby reducing the drag force.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively reduces drag forces and oscillations while maintaining structural integrity, enhancing stability and reducing manufacturing costs through optimized production methods.
Implementation Method 1
The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull... reducing the drag force by guiding currents smoothly
Data Source
AI summary
A floating body for an offshore wind turbine includes: one first column; two second columns; two lower hulls connecting the first column to each of the second columns; and a beam member connecting the two lower hulls. The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull.