Aircraft Panel Assembly Using Snap-Fit Web Sections
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Solution Overview
Problem
Aircraft designers face challenges in balancing weight reduction and cost minimization while simplifying the complex assembly processes of aircraft components, as lightweight metals are heavier but less expensive than composite materials, and existing assembly methods are intricate and labor-intensive.
Innovation Solution
The aircraft component employs upper and lower panels with channels that engage web sections in a snap-fit manner, eliminating the need for mechanical fasteners and using adhesive for coupling, allowing for rapid and simplified assembly without waiting for the adhesive to cure, thus reducing weight and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lightweight metals such as aluminum are used for upper and lower panels, then manufacturing cost is reduced, but weight increases compared to composite materials
Solution Approach 1:
The patent employs composite materials for the upper and lower panels of the aircraft component. Specifically, the panels are constructed using composite material layers that provide both weight reduction and structural integrity, resolving the contradiction between using lightweight metals (lower cost but heavier) and composite materials (higher cost but lighter). The composite construction allows the component to achieve optimal weight-to-strength ratio.
2Reliability
If traditional assembly methods with mechanical fasteners and temporary support structures are used, then structural stability is ensured, but assembly complexity and labor requirements increase
Solution Approach 1:
The patent eliminates mechanical fasteners and temporary support structures from the assembly process. The web sections are directly integrated with the panels through precision-fit connections, removing the need for separate fastening components and temporary bracing. This extraction of unnecessary elements simplifies the assembly process while maintaining structural integrity through the designed integration of components.
Solution Approach 2:
The web sections feature self-aligning and self-securing geometries that automatically position and secure the panels during assembly. The complementary shapes of the web sections and panel interfaces enable the components to self-assemble without requiring external temporary support structures or complex alignment procedures, reducing labor requirements while ensuring proper structural configuration.
3Weight of moving object
If composite materials are used for upper and lower panels, then weight is reduced, but manufacturing cost increases compared to lightweight metals
Solution Approach 1:
The patent divides the aircraft component into distinct modular sections: upper panels, lower panels, and web sections. This segmentation allows each component to be manufactured separately using optimized processes for its specific function, then assembled together. The modular approach enables efficient use of composite materials where weight reduction is critical while potentially using different materials or construction methods for other sections, balancing overall manufacturing cost against weight reduction benefits.
Data Source
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AI summary
An aircraft component includes, but is not limited to, a first panel including a first channel and a second panel including a second channel. The second panel is disposed such that the second channel is aligned with the first channel. The aircraft component further includes, but is not limited to, a web section that disposed adjacent the first and second panels. The web section includes a first engagement portion engaged with the first channel and a second engagement portion engaged with the second channel. The aircraft component further includes, but is not limited to an adhesive that is disposed between the first engagement portion and the first channel and between the second engagement portion and the second channel. The first panel and the second panel are joined together by cooperation of the web section and the adhesive.