Variable Width Flange Stringers for Aircraft Load Transfer

The patent applies local quality by varying the cross-sectional properties of the elongated structure along its length. The flange width changes from a first width at the first end to a second width at the second end, allowing different sections to have optimized properties for their specific loading conditions. This enables the structure to achieve higher load-bearing capacity without requiring uniform complexity throughout, as each section is tailored to its local requirements.

The patent implements dynamics by transitioning from a static, constant cross-section design to a dynamic, variable cross-section design. The cross-sectional properties are not fixed but vary continuously or in steps along the length of the structure, allowing the structural characteristics to adapt to changing load conditions along the span, thereby improving overall load-bearing capacity.

The patent applies universality by designing a single elongated structure that can perform multiple functions that would traditionally require multiple separate stringers. The variable cross-sectional design allows one structure to provide the necessary structural performance across different loading zones, replacing multiple constant-cross-section stringers and reducing the number of attachment fittings needed, thereby improving manufacturing efficiency.

The patent utilizes parameter changes by varying the cross-sectional dimensions (flange width) along the length of the elongated structure. This continuous or stepped variation in geometric parameters allows the structure to achieve desired weight and performance characteristics in a single component, eliminating the need for multiple stringers and reducing manufacturing complexity.

The patent applies the extraction principle by removing the need for separate, complex machined attachment fittings. The variable cross-section design of the elongated structure itself provides the necessary attachment surfaces and load transfer capabilities directly on the structure, eliminating or reducing the need for additional attachment components, thereby reducing weight while maintaining adequate load transfer.

The patent merges the functions of the elongated structure and attachment fittings into a single integrated component. The variable cross-sectional design incorporates attachment surfaces and load transfer features directly into the structure body, combining what would traditionally be separate elements (structure plus attachment fittings) into one unified component, reducing overall weight and complexity.