Autonomous Retractable Aircraft Lighting for High-Speed Drag Control
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Solution Overview
Problem
Aircraft retractable lighting systems face reduced usable life and increased operational stress due to extended use at higher speeds, leading to decreased fuel efficiency and increased risk of physical damage, while manual management increases operator workload and complexity.
Innovation Solution
An autonomous retractable lighting system that automatically retracts and deactivates based on vehicle speed, using a control system to verify illumination elements are off before transitioning from an extended to a retracted state, reducing drag and thermal stress, and alleviating pilot workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the lighting arrangement is maintained extended at higher speeds, then the lighting arrangement can provide illumination during high-speed operation, but the usable life of the lighting arrangement decreases and operational stress increases
Solution Approach 1:
The lighting arrangement is designed to be dynamically retractable, allowing it to transition between extended and retracted states based on operational conditions. The system automatically retracts the lighting arrangement when vehicle speed exceeds a threshold, reducing stress and extending usable life while maintaining illumination capability when needed.
2Adaptability or versatility
If the lighting arrangement is maintained extended at higher speeds, then the lighting arrangement remains available for use, but fuel efficiency decreases due to increased drag
Solution Approach 1:
The lighting arrangement transitions from a static extended position to a dynamic system that automatically retracts at higher speeds. This dynamic adjustment optimizes aerodynamic performance and fuel efficiency while maintaining lighting availability when the arrangement is extended at lower speeds.
3Ease of operation
If the lighting arrangement is maintained extended at higher speeds, then the lighting arrangement is accessible, but the probability of physical damage from foreign objects increases
Solution Approach 1:
The system dynamically retracts the lighting arrangement when vehicle speed exceeds a threshold, reducing exposure to foreign object damage risks. The lighting remains accessible and operable when extended at lower speeds, maintaining ease of operation while mitigating damage probability during high-speed flight.
4Ease of operation
If manual management of the lighting arrangement is implemented, then the pilot can control lighting operation, but operator workload increases and situational awareness may be detracted
Solution Approach 1:
The lighting system implements self-service through automatic retraction based on vehicle speed thresholds. The control system monitors speed and autonomously commands retraction when conditions warrant, eliminating the need for manual pilot intervention while maintaining lighting availability when needed.
Solution Approach 2:
The system incorporates feedback from vehicle speed sensors to automatically control lighting arrangement retraction. The control system continuously monitors speed and uses this feedback to determine when to retract or maintain the extended position, reducing pilot workload while ensuring appropriate lighting operation.
Data Source
AI summary
Methods and systems are provided for autonomously operating a retractable lighting arrangement. One method involves obtaining a current speed of the vehicle when the lighting arrangement is in an extended state, and when the current speed is greater than a threshold when the lighting arrangement is in the extended state, verifying one or more illumination elements associated with the lighting arrangement are in a deactivated state and thereafter automatically signaling an actuation arrangement associated with the lighting arrangement to transition the lighting arrangement from the extended state to a retracted state.