Floating Metal Platform for Offshore Wind Turbines
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Solution Overview
Problem
The existing design drivers for floating offshore wind platforms prioritize structural optimization for weight and motion, which are not suitable for the low-margin, high-unit-volume market. This leads to unquantifiable risks for investors due to complexity and uncertainty in structural capacity.
Innovation Solution
A floating metal platform design that simplifies the structure to linearize motion characteristics, utilizing steel as the primary material and incorporating buoyancy elements into elongated elements for structural support and buoyancy, facilitating mass production and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If complex structures with non-linear excitation and response are used to optimize weight and motion characteristics, then structural performance is improved, but device complexity increases and manufacturing cost increases
Solution Approach 1:
The platform is divided into multiple identical or similar modules (e.g., four legs with buoyancy elements) that can be manufactured separately and assembled together. This segmentation allows for simplified individual module design that can be produced using standard fabrication processes, while the overall structure achieves the required structural capacity through modular repetition and geometric arrangement.
2Strength
If complex structures with non-linear excitation and response are used to optimize weight and motion characteristics, then structural performance is improved, but manufacturing cost increases
Solution Approach 1:
The design changes the geometric parameters of the structure (e.g., leg length, buoyancy element size, platform dimensions) to achieve linear motion characteristics while maintaining structural capacity. By carefully selecting these parameters, the structure can be designed to respond linearly to wave forces, simplifying both the design and manufacturing processes while meeting performance requirements.
3Productivity
If automated serial production is used to reduce manufacturing cost, then productivity is improved, but device complexity must be reduced to enable mass production
Solution Approach 1:
The platform is divided into multiple identical or similar modules (e.g., four legs with buoyancy elements) that can be manufactured separately and assembled together. This segmentation allows for simplified individual module design that can be produced using standard fabrication processes, while the overall structure achieves the required structural capacity through modular repetition and geometric arrangement.
Solution Approach 2:
The design uses universal, standardized components that can serve multiple functions. For example, the legs serve both as structural support and as mounting structures for buoyancy elements. This multi-functionality reduces the total number of different component types, enabling automated serial production while maintaining structural integrity.
4Ease of manufacture
If simplified structure is used to enable mass production and reduce cost, then ease of manufacture is improved, but weight optimization is worsened
Solution Approach 1:
The design employs composite construction combining steel structures with concrete buoyancy elements. This composite approach allows the use of materials that are both structurally efficient and suitable for automated fabrication. The concrete buoyancy elements can be pre-cast using standardized forms, while the steel components provide the necessary structural strength, achieving a balance between manufacturing simplicity and weight optimization.
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 achieves cost reduction through simplified production processes, reduces uncertainty in structural capacity, and enables more accurate reliability-based performance estimates, thereby improving investor risk understanding and enabling quantitative investment decisions.
Implementation Method 1
at least a first buoyancy element (114a) connected to the first elongated member (111) and the second elongated member (112)
Data Source
AI summary
A floating wind turbine metal platform supports a wind turbine. The platform includes a centre hub, connectable to a tower, and three elongated elements connected to the centre hub. The elongated elements are arranged with regular angular spacing. Each elongated element includes: a first elongated member and a second elongated member parallel to the first elongated member. The platform includes a first buoyancy element connected to the first elongated member and the second elongated member. At least one of the elongated members of each elongated element is a stiffened plate. Each elongated element comprises stiffening means for stiffening of the elongated members.