Aircraft Decompression Panel With Porous Thermoplastic Material
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Solution Overview
Problem
Existing decompression panels in aircraft are heavy, difficult to clean, aesthetically unpleasing, and limited in noise reduction due to their material and configuration, which restricts the size of noise-reducing baffles that can be installed.
Innovation Solution
A decompression panel with a body portion featuring an array of openings that progressively increase in size from the bottom to the top, angled relative to the outer surface, made from lightweight materials like thermoplastic polymeric materials, which restricts access and retains less foreign material, while allowing improved air flow and noise attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a grille and/or louvers assembly is used to cover the openings, then debris and foreign material passage is restricted, but the aircraft weight increases and the panel becomes difficult to clean
Solution Approach 1:
The panel uses a porous thermoplastic material with integrated through-holes that serve as the opening coverage. This porous structure restricts debris passage while being made from lightweight thermoplastic material, avoiding the weight penalty of traditional grille assemblies.
Solution Approach 2:
The panel integrates multiple functions into a single component: the porous material both covers the opening and filters debris, eliminating the need for separate grille assemblies. The baffle is also integrated directly into the panel structure, combining noise reduction with the primary panel function.
2Object-affected harmful factors
If a grille and/or louvers assembly is used to cover the openings, then debris and foreign material passage is restricted, but the panel becomes aesthetically unpleasant to passengers
Solution Approach 1:
The porous thermoplastic material provides a uniform, clean appearance with regularly spaced through-holes that are aesthetically pleasing to passengers while still restricting debris passage. This eliminates the visual ugliness of traditional grille and louver assemblies.
3Strength
If traditional panel materials and configurations are used, then structural integrity is maintained, but the size of noise-reducing baffles is limited
Solution Approach 1:
The baffle is integrated directly into the panel structure as a unified component. The panel body itself forms the baffle structure, eliminating the need for separate baffle assemblies and allowing maximum baffle size within the panel thickness, thereby improving noise reduction capability.
4Quantity of substance
If traditional grille and louvers assemblies are used, then air flow is enabled, but the configuration limits noise reduction effectiveness
Solution Approach 1:
The panel integrates the baffle function directly into its structure, creating a unified component that simultaneously enables air flow through the porous material and provides noise reduction. The baffle is positioned immediately behind the porous material, maximizing noise attenuation while maintaining air flow paths.
Data Source
AI summary
A decompression panel for use in an aircraft assembly includes a body portion including a top end and a bottom end, and an array of openings formed in the body portion. The openings in the array progressively decrease in size along a height of the body portion from the bottom end towards the top end.