Aircraft Image Projector Mitigating Aeroelastic Flutter
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Solution Overview
Problem
State-of-the-art aircraft tail planes use dead masses to mitigate aeroelastic flutter, which lack functionality beyond resonance frequency adjustment, necessitating additional devices without increasing aircraft weight.
Innovation Solution
Replace dead masses with image projectors that maintain aeroelastic vibration mitigation while projecting images or videos, integrating structural features to match the mass of the removed dead masses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dead masses are installed to mitigate aeroelastic flutter, then vibration mitigation is improved, but aircraft functionality remains limited
Solution Approach 1:
The patent applies multi-functionality by replacing the single-function dead mass with an image projector that simultaneously performs vibration mitigation through its mass effect and provides image projection capabilities for advertising and information display, allowing the same component to serve multiple purposes
2Adaptability or versatility
If additional devices are added to increase functionality, then adaptability is improved, but aircraft weight increases
Solution Approach 1:
The patent merges the previously separate functions of dead mass (vibration control) and advertising display into a single integrated image projector component, eliminating the need for additional separate devices and thereby avoiding weight increase while enhancing functionality
3Adaptability or versatility
If dead masses are replaced with functional devices, then adaptability is improved, but mass distribution for vibration control may be affected
Solution Approach 1:
The patent applies parameter changes by carefully selecting the image projector's physical characteristics (mass, dimensions, mounting position) to match or exceed the parameters of the removed dead mass, ensuring that the replacement component maintains the necessary mass distribution for effective vibration control while providing additional functionality
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
Enhances aircraft functionality with customizable advertising and image projection without adding weight, thus maintaining flight efficiency.
Implementation Method 1
the image projector is configured to project an image onto solid ground, onto the vertical stabilizer or onto the fuselage of the aircraft
Implementation Method 2
Aeroelastic vibration or flutter is defined as an unstable, self-excited structural oscillation at a defined frequency in which energy is extracted from the air stream by the movement of the structure
Implementation Method 3
These dead masses achieve a reduction or mitigation of the aeroelastic flutter suffered by the horizontal stabilizer because said dead masses allow the resonance frequency of the horizontal stabilizer to move away from the frequency components present during flight
Data Source
AI summary
An image projector to be installed in a space used for placing a dead mass to mitigate aeroelastic vibrations suffered by the horizontal stabilizer of an aircraft. The image projector replaces the dead mass. The image projector may be connectable to the surface of a closed rib of the horizontal stabilizer. The image projector may include a structural features configured to mitigate at least the same aeroelastic vibrations as the dead mass. The image projector is configured to project at least one image.