Wind Turbine Blade Root Insert Positioning
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Solution Overview
Problem
Conventional methods for forming rotor blade root portions in wind turbines are time-consuming, require complex tooling, and skilled operators, leading to high production costs.
Innovation Solution
A method involving alignment pins and a prefabricated panel with insert cavities, where alignment pins are positioned within installation apertures on an alignment plate, coupled with a prefabricated panel to accurately place inserts, and adhesives are used to secure them, allowing for the removal of alignment pins without decoupling the panel, reducing the need for complex tooling and skilled labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to position inserts in root portions, then manufacturing precision can be achieved, but device complexity and production time increase significantly
Solution Approach 1:
Alignment pins are pre-positioned in installation apertures on the alignment plate before the root portion is formed. This preliminary positioning ensures that when inserts are later placed in the root portion, they automatically align with the correct positions and orientations, eliminating the need for complex positioning tooling during assembly.
Solution Approach 2:
The alignment plate serves as an intermediary device between the hub and the root portion. It provides a reference framework with installation apertures that guide the positioning of alignment pins, which in turn guide insert placement. This intermediary structure simplifies the overall positioning system compared to direct complex tooling.
2Manufacturing precision
If conventional methods with complex tooling are used, then insert positioning accuracy is maintained, but productivity decreases due to time-consuming processes
Solution Approach 1:
The alignment plate with pre-positioned alignment pins is prepared in advance, allowing for rapid positioning of inserts during root portion formation. This eliminates time-consuming manual measurement and positioning operations while maintaining precision through the pre-established alignment geometry.
Solution Approach 2:
The alignment structure is self-aligning through the geometric relationship between alignment pins and installation apertures. Once the alignment plate is positioned, the system automatically provides correct insert positioning without requiring additional adjustment operations or highly skilled manual intervention.
3Manufacturing precision
If highly skilled operators are used for insert positioning, then manufacturing precision is achieved, but production cost increases
Solution Approach 1:
The alignment plate and alignment pins create a self-guiding system that automatically ensures correct insert positioning. This eliminates the need for highly skilled operators to perform complex positioning tasks, as the geometry of the alignment system provides inherent guidance, allowing less skilled workers to achieve the same precision.
Solution Approach 2:
The alignment plate appears to be a temporary positioning aid that can be removed after insert placement. Using simple, potentially disposable alignment components is more cost-effective than investing in expensive, complex reusable tooling systems or paying premium wages for highly skilled positioning operators.
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 the precise placement of inserts within the desired tolerances without complex tooling or highly skilled operators, lowering production costs and improving efficiency in forming wind turbine rotor blade root portions.
Implementation Method 1
placing a first adhesive in each insert cavity of a second set of the plurality of insert cavities... coupling the first set of inserts and the alignment plate and curing the first adhesive
Data Source
AI summary
The present disclosure is directed to a method of forming a root portion of a wind turbine rotor blade. A plurality of alignment pins coupled to an alignment plate is aligned with a first set of a plurality of insert cavities defined by a prefabricated panel. Each alignment pin is positioned within one of a first set of a plurality of installation apertures defined by the alignment plate. The prefabricated panel and the alignment plate are coupled such that each alignment pin is positioned within one of the first set of the plurality of insert cavities. A first adhesive is placed in each of the second set of the plurality of insert cavities. A first set of inserts are placed into a second set of the plurality of insert cavities. The first set of inserts and the alignment plate are coupled, and the first adhesive is cured.