Wind Turbine Blade Bonding Grid for Uniform Adhesive Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for joining large wind turbine blade segments lack sufficient bonding strength and durability, often requiring heavy and expensive components, and fail to provide uniform adhesive distribution, leading to undesirable weight and reduced efficiency.
Innovation Solution
A bonding grid with adhesive distribution openings is used to ensure uniform adhesive application between wind turbine blade segments, providing controlled temperature and distribution, and incorporating the grid into the bonded joint for strong and uniform junctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional joining techniques are used to bond wind turbine blade segments, then the blade segments can be joined together, but the bonding strength and durability are insufficient
Solution Approach 1:
The bonding grid divides the bonding interface into multiple discrete adhesive distribution openings, creating segmented adhesive zones that improve stress distribution and bonding reliability across the joint interface
Solution Approach 2:
The bonding grid provides localized adhesive distribution at specific openings rather than uniform adhesive application, creating areas of concentrated bonding strength where needed most in the joint interface
2Strength
If heavy and expensive components are used in interlocking systems, then sufficient bonding strength can be achieved, but the weight of the assembled blade increases undesirably
Solution Approach 1:
The bonding grid replaces heavy mechanical interlocking components with a lightweight adhesive-based system, achieving sufficient bonding strength through chemical adhesion rather than mechanical fastening, thereby reducing overall blade weight
3Quantity of substance
If conventional adhesive application methods are used, then adhesive can be applied between segments, but uniform distribution of adhesive is not achieved
Solution Approach 1:
The bonding grid segments the adhesive application process into multiple discrete openings, ensuring uniform distribution of adhesive across the bonding interface by controlling flow through each opening individually
Solution Approach 2:
The bonding grid acts as an intermediary device between the adhesive source and the bonding surface, mediating the adhesive flow to achieve precise and uniform distribution across the joint interface
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 solution enables the creation of durable and strong bonding joints, reducing assembly costs, allowing for easier transportation and on-site assembly of wind turbine blades, while ensuring uniform adhesive distribution and controlled bonding, thus enhancing the structural integrity and efficiency of wind turbine blades.
Implementation Method 1
An adhesive distribution arrangement is disposed on a surface of at least one of the plurality of wind turbine blade segments. The adhesive distribution arrangement includes a bonding grid having a plurality of adhesive distribution openings.
Implementation Method 2
The wind turbine blade segments are directed together and sufficient adhesive is provided to the bonding grid to substantially fill an area between the wind turbine segments. The adhesive is then cured to form a bonded joint
Data Source
AI summary
A method and system for assembling large wind turbine blades that includes providing a plurality of wind turbine blade segments. An adhesive distribution arrangement is disposed on a surface of at least one of the plurality of the wind turbine blade segments. The adhesive distribution arrangement includes a bonding grid having a plurality of adhesive distribution openings. The wind turbine blade segments are directed together and sufficient adhesive is provided to the bonding grid to substantially fill an area between the wind turbine segments. The adhesive is then cured to form a bonded joint, the bonding grid being incorporated into the bonded joint. A bonding grid for use with the method and system and a segmented wind turbine blade are also disclosed.