Aircraft Strut Aerodynamic Cover Kit Design
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Solution Overview
Problem
Existing aircraft strut designs lack aerodynamic modifications, leading to inefficiencies in airflow and increased drag, which can impact stability and fuel efficiency.
Innovation Solution
A kit comprising a rigid sheath with angled leading and trailing edges and convex surfaces, designed to fit over the strut, combined with a clamp system for secure attachment, creating a tapered aerodynamic shape that reduces drag and enhances airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional oval cross-section strut is used, then the structural support function is provided, but aerodynamic drag is increased
Solution Approach 1:
The patent applies curved surfaces to the strut by covering the traditional oval cross-section with a streamlined cover featuring convex surfaces. This curvature transformation reduces airflow separation and pressure drag while maintaining the underlying structural integrity of the oval strut, directly resolving the contradiction between aerodynamic performance and structural function.
Solution Approach 2:
The streamlined cover acts as an intermediary element between the traditional oval strut and the airflow. This intermediate component modifies the airflow pattern around the strut without requiring changes to the strut's internal structure, thereby reducing drag while preserving the original structural support capability.
2Productivity
If aerodynamic modifications are added to the strut, then airflow efficiency is improved, but the structural integrity may be compromised
Solution Approach 1:
The patent segments the strut system into two independent components: the original oval strut providing structural support, and the separate streamlined cover providing aerodynamic benefits. This segmentation allows each component to optimize its function without compromising the other, as the cover can be designed purely for aerodynamics while the strut maintains its structural integrity.
Solution Approach 2:
The streamlined cover is nested over the existing oval strut, creating a layered structure where the inner oval strut provides structural strength and the outer streamlined cover provides aerodynamic efficiency. This nesting arrangement allows both functions to coexist, with the cover acting as a protective aerodynamic shell that does not interfere with the structural role of the inner strut.
3Loss of energy
If a streamlined cover is added to the strut, then drag is reduced, but the device complexity increases
Solution Approach 1:
The patent employs a streamlined cover that functions as a thin aerodynamic shell enclosing the strut. This shell-based approach reduces drag effectively while adding minimal weight and complexity compared to solid aerodynamic fairings. The thin-film nature of the cover allows it to conform to the strut shape without requiring complex internal support structures.
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 kit significantly reduces drag and enhances airflow around the strut, improving the aircraft's stability and fuel efficiency by providing a streamlined aerodynamic cover for the strut.
Implementation Method 1
The rigid sheath comprises an angled leading edge between the first portion and the second portion, an angled trailing edge between the first portion and the second portion... creating a tapered aerodynamic shape that reduces drag and enhances airflow
Data Source
AI summary
A kit for modifying a strut of an aircraft with an aerodynamic cover includes a rigid sheath formed from a first portion and a second portion. Each of the first portion and the second portion have a curved shape. The rigid sheath includes an angled leading edge and an angled trailing edge. Convex surfaces connect the leading edge and the angled trailing edge. There is an attachment for attaching the rigid sheath to the strut, the attachment securing the sheath to the strut such that the strut is positioned at the camber of the rigid sheath.