Floating Offshore Platform Pontoon Layout for Deep-Water Stability
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Solution Overview
Problem
Existing offshore wind power generation systems face challenges in deep water installations due to structural limitations, increased costs, and the need for large-scale structures, which affect power generation efficiency and stability.
Innovation Solution
A floating offshore structure with a polygonal shape formed by columns and pontoons, where the pontoons have a greater cross-sectional area parallel to sea level and protrude outward, supported by braces and dampers, allowing for installation regardless of water depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed structure is used for offshore wind power generation, then the structure is stable on the seabed, but the structure size becomes too large and manufacturing/installation costs increase astronomically in deep water
Solution Approach 1:
The fixed structure is divided into multiple modular units (wind turbine modules) that can be independently manufactured and assembled. Each module contains a turbine, nacelle, and support structure that can be factory-assembled and then installed in deep water without requiring a single large complex structure
Solution Approach 2:
The patent uses tension-leg platforms where the weight of the structure is counterbalanced by tension in the mooring lines connecting to the seabed. This allows the structure to remain stable in deep water without requiring excessive structural mass, reducing both size and cost
2Productivity
If the water depth increases, then wind power generation can be located farther from land with stronger winds, but the fixed structure becomes impractical and costs increase
Solution Approach 1:
The patent transitions from static fixed structures to dynamic floating structures that can adapt to deep water conditions. The floating platform moves with waves and currents while maintaining operational stability, enabling power generation in deep water locations with strong consistent winds without the prohibitive costs of fixed structures
Solution Approach 2:
The invention changes the fundamental operating parameters from fixed seabed anchoring to floating platform dynamics. By adjusting the platform's buoyancy, ballast, and mooring system parameters, the structure can operate efficiently in various water depths including deep water locations far from shore
3Adaptability or versatility
If a floating structure is used, then installation is possible regardless of water depth, but the structure must withstand complex environmental loads including waves, currents, and wind
Solution Approach 1:
The floating structure is pre-assembled in controlled factory conditions with all structural components, mooring systems, and protective coatings installed before deployment. This preliminary assembly ensures structural integrity and proper configuration to withstand environmental loads before the structure is exposed to harsh ocean conditions
Solution Approach 2:
The patent employs composite materials in the construction of the floating platform and support structures. These composite materials provide high strength-to-weight ratios and excellent resistance to corrosion, fatigue, and environmental degradation, enabling the structure to withstand complex environmental loads in deep water
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 structure enables stable and efficient power generation in deep water by maintaining structural integrity and reducing installation costs, enhancing power generation efficiency.
Implementation Method 1
the floating type floats on the surface of the water and is subjected to self-weight, buoyancy, environmental load and mooring force
Data Source
AI summary
A floating offshore structure of the present disclosure includes: a plurality of columns; and a plurality of pontoons installed at lower ends of the columns, respectively, wherein a polygonal shape is formed by an imaginary line connecting the columns, the pontoons are installed inside the polygonal shape, a cross-sectional area in a direction parallel to sea level of the pontoons is greater than or equal to the cross-sectional area in the direction parallel to the sea level of the columns, and the pontoons may have a shape protruding outward at the lower ends of the columns.