Wind Turbine Blade Section Assembly Link Plate
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Solution Overview
Problem
The assembly of large wind turbine blades made of composite materials poses challenges in terms of mechanical optimization, cost, and simplicity, particularly due to the complexity of existing connection methods that require numerous components and interface means.
Innovation Solution
The use of link plates for connecting sections of wind turbine blades, with reinforced sole pieces and longitudinal members forming an H-section beam, allowing for simplified assembly and avoiding the need for additional covers at the connection points, utilizing bolted connections and polymerization-secured composite assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional connection methods with interface means are used, then the assembly of composite sections can be achieved, but the device complexity and number of components increase
Solution Approach 1:
The patent merges the connection function directly into the longitudinal bearing structure by integrating link plates that are secured to the sole pieces and longitudinal members. This eliminates the need for separate interface means and reduces the number of components while maintaining the assembly capability of composite sections.
Solution Approach 2:
The link plates serve multiple functions: they connect sole pieces, connect longitudinal members, and provide reinforcement at connection points. This multi-functionality reduces the need for specialized components and simplifies the overall assembly process.
2Reliability
If sections are assembled with traditional methods, then connectivity can be achieved, but additional covers are required at connection points
Solution Approach 1:
The connection structure is merged with the longitudinal bearing structure itself. The link plates are secured directly to the sole pieces and longitudinal members, creating a continuous load path without requiring separate cover components to protect or complete the connection.
3Weight of moving object
If composite materials are used for blades, then the blade weight is reduced, but the assembly of sections becomes more complex
Solution Approach 1:
The blade is divided into sections that can be manufactured and transported separately, then assembled using the link plate connection system. This segmentation allows for lighter individual sections made of composite materials while the standardized connection system manages the assembly complexity.
Solution Approach 2:
The connection system uses reinforcement parameters (additional thickness of reinforcing material at ends of sole pieces) to accommodate the assembly requirements of composite sections, allowing weight reduction in the main blade structure while maintaining connection integrity.
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
This method enables a mechanically optimized, cost-effective, and simplified assembly of wind turbine blades, ensuring continuity and force absorption at the connection points without the need for additional covers, facilitating on-site assembly and reducing transportation costs.
Implementation Method 1
the link between the sections comprises at least a first link plate linking the end of the sole pieces of said sections facing each other
Implementation Method 2
the end of the sole pieces of said sections receiving the link plate include an additional thickness of reinforcing material
Implementation Method 3
structural components made of composite materials
Data Source
AI summary
A wing or blade in at least two sections facing each other. Each section has a longitudinal bearing structure provided with at least one sole of which the link between the sections includes at least one first link plate linking the end of the soles of the sections facing each other. A method of producing such wing or blade.