Auto-Takeoff Trajectory Control for Aircraft Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current manual noise abatement procedures during aircraft takeoff are challenging to execute accurately, leading to variability in takeoff trajectories and increased perceived noise levels, which can result in non-compliance with noise emission regulations and potential airport bans.
Innovation Solution
An automated system that optimizes the takeoff trajectory by using sensors and processors to calculate and control pitch rate, pitch angle, and thrust settings, ensuring consistent execution of noise-optimized takeoff procedures without pilot intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual noise abatement procedures are used during takeoff, then pilot flexibility and control are maintained, but trajectory consistency deteriorates and noise levels increase
Solution Approach 1:
The patent replaces manual mechanical control with an automated flight control system that uses sensors, processors, and actuators to control aircraft pitch and thrust. The system automatically executes optimized takeoff procedures without pilot intervention, ensuring consistent trajectory execution while reducing noise levels.
Solution Approach 2:
The flight control system performs self-monitoring and self-correction during takeoff. Sensors continuously measure actual trajectory parameters, the processor compares them with desired values, and the system automatically adjusts control surfaces and engine thrust to maintain optimal trajectory, eliminating the need for continuous manual pilot adjustments.
2Manufacturing precision
If automated flight control is implemented, then trajectory consistency improves, but system complexity increases
Solution Approach 1:
The automated flight control system integrates multiple functions into a single unified system. It combines trajectory monitoring, noise optimization calculations, control surface actuation, and engine thrust management in one integrated architecture that can handle various flight phases and conditions, reducing overall system complexity despite the advanced capabilities.
Solution Approach 2:
The patent introduces a flight management computer as an intermediary that coordinates between pilots, sensors, and actuators. This central processing unit manages the complex automated procedures by receiving pilot inputs, calculating optimal trajectories, and automatically controlling flight parameters, thereby simplifying the interface while maintaining sophisticated control capabilities.
3Object-generated harmful factors
If optimized takeoff trajectories are enforced, then noise emission levels decrease, but operational flexibility is reduced
Solution Approach 1:
The automated flight control system dynamically adjusts takeoff parameters based on real-time conditions such as aircraft weight, wind speed, temperature, and runway conditions. The system calculates and executes optimized trajectories that adapt to changing environmental factors, maintaining noise compliance while preserving operational flexibility for different flight scenarios.
Solution Approach 2:
The system modifies key flight parameters including pitch rate, climb angle, and thrust settings during takeoff to optimize the trajectory for noise reduction. By dynamically changing these parameters based on automated calculations rather than fixed manual procedures, the system achieves lower noise emissions while maintaining adaptability to various operational requirements.
Data Source
AI summary
Aircraft takeoff trajectory is automatically optimized to minimize Perceived Noise Level. A flight computer automatically performs all the actions to takeoff the airplane and assure that its real takeoff trajectory is compliant with the takeoff trajectory optimized. Variability of trajectory is eliminated through automation of pilot's actions during takeoff and assurance of an optimum trajectory. The system also provides for simultaneity of actions and the changing of aerodynamic configuration during takeoff.