Aircraft Skin-Integrated Electronics for Low-Drag Antenna Mounting
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Solution Overview
Problem
Aircraft electronic devices, such as antennas, protrude from the fuselage, increasing air resistance and aerodynamic loads, and their integration into the outer skin complicates maintenance and is prone to performance issues due to fuselage deformation.
Innovation Solution
An electronic arrangement with structural elements having a rigid frame and permeable covers for antennas, integrated into the aircraft's reinforcement grid, allowing secure mounting without additional weight or aerodynamic impact, with structural elements that replace the load-bearing components of the outer skin and maintain pressure tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electronic devices are mounted externally on the aircraft fuselage, then installation and maintenance are simplified, but air resistance increases and aerodynamic loads are generated
Solution Approach 1:
The electronic device is merged with the outer skin to form an integrated assembly where the device becomes part of the skin structure itself, eliminating the need for separate mounting structures and reducing aerodynamic disruption
Solution Approach 2:
The outer skin serves multiple functions: it provides the aerodynamic envelope and simultaneously houses the electronic device, making the skin a multi-functional component that reduces overall system complexity
2Object-affected harmful factors
If electronic devices are integrated into the outer skin, then air resistance is reduced, but maintenance and replacement become complex
Solution Approach 1:
The outer skin is segmented into modular panels, with each panel capable of being independently removed and replaced, allowing electronic devices to be accessed and maintained without affecting the entire fuselage structure
Solution Approach 2:
The skin panels are designed with dynamic assembly and disassembly capabilities, allowing them to be easily attached and detached for maintenance purposes while maintaining aerodynamic integrity during operation
3Weight of moving object
If antenna elements are integrated into the outer skin, then weight is reduced, but transmission and receiving properties are impaired by fuselage deformation
Solution Approach 1:
The antenna elements are designed with adjustable electrical parameters that can be compensated for changes in physical position caused by fuselage deformation, maintaining transmission and receiving properties despite structural variations
4Strength
If base plates with high weight are used to secure electronic devices, then secure mounting is achieved, but overall weight increases
Solution Approach 1:
The mounting structure is merged with the skin panel itself, where the panel acts as both the aerodynamic surface and the mounting substrate, eliminating the need for separate heavy base plates
Solution Approach 2:
The skin panel serves multiple functions simultaneously: it provides the aerodynamic envelope, structural support, and mounting surface for electronic devices, reducing the need for additional dedicated mounting components
Data Source
AI summary
An opening completely arranged in a skin panel of a structural portion of the aircraft is formed in the outer skin of the skin panel, and for each of the skin panels with one of the openings, an associated structural element of an electronic arrangement is separately provided. The structural element is designed and detachably fastened by a frame thereof to the outer skin in the corresponding skin panel on the side of the outer skin opposite the outer surface, such that it seals the corresponding opening such that the skin panel has at least the same pressure-tightness and at least the same strength relative to tension, pressure and shear forces which act in the skin panel in the extension direction of the outer skin as the same skin panel without the corresponding opening.