Wind Turbine Rotor Blade Segment Joint Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing joint designs for securing rotor blade segments in wind turbines are complex, expensive, and require manual intensive installation and maintenance, with permanent adhesive joints or periodic bolt torque maintenance, limiting flexibility and efficiency.
Innovation Solution
A rotor blade assembly with a joint assembly featuring interlocking components that can be moved between locked and unlocked positions using a spring-locking system and input devices, allowing for quick assembly and disassembly, and adjustable teeth for precise alignment, reducing installation time and tooling requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive joints are used to secure blade segments, then permanent joints are achieved, but the joints cannot be modified with changing wind conditions and require complex installation procedures
Solution Approach 1:
The joint assembly transitions from a static adhesive connection to a dynamic mechanical interlocking system that can be easily assembled and disassembled. The interlocking components allow the joint to be dynamically configured or reconfigured based on changing wind conditions or maintenance requirements, while maintaining secure connection during operation.
Solution Approach 2:
The joint assembly is divided into separate interlocking components that can be independently installed and removed, rather than requiring a permanent adhesive bond. This segmentation allows for easy modification, replacement, or adjustment of blade segments without affecting the entire rotor blade structure.
2Adaptability or versatility
If bolted joints are used to secure blade segments, then modifiability is achieved, but periodic maintenance is required to ensure required torque
Solution Approach 1:
The interlocking components are designed to maintain their own secure connection through the interlocking mechanism itself, eliminating the need for periodic torque checks or adjustments. The mechanical interlock provides self-maintaining connection that automatically adapts to operational conditions without requiring external maintenance intervention.
3Strength
If complex joint designs are used to secure blade segments, then connection strength is achieved, but installation and maintenance become manually intensive
Solution Approach 1:
The joint assembly replaces complex multi-step mechanical fastening systems with a simpler interlocking mechanism that achieves equivalent or superior connection strength through geometric interlocking rather than complex fastening procedures. This substitution maintains connection integrity while dramatically simplifying installation and maintenance operations.
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 provides a robust, efficient, and customizable joint assembly that reduces shipping costs and enables future performance enhancements by allowing easy modification of blade tips and segments, improving wind turbine performance and maintenance efficiency.
Implementation Method 1
the spring-locking system includes a plurality of springs, with at least one of the springs secured between the inner surface of the first blade component and a tooth from the first set of teeth and another one of the springs secured between the inner surface of the second blade component and a tooth from the second set of teeth
Data Source
AI summary
The present disclosure is directed to a rotor blade assembly for a wind turbine having a joint assembly securing first and second blade segments together. For example, the joint assembly releasably couples the first and second blade segments together at a chord-wise extending joint and includes at least one set of interlocking components. As such, the joint assembly is movable between a locked position and an unlocked position by engaging and disengaging the interlocking components. Thus, in the locked position, the first and second blade segments are secured together via the interlocking components, and movement from the locked position to the unlocked position, releases the interlocking components, thereby releasing the first and second blade segments from each other.