Landing Gear Force Feedback for Stable Landed Rotor Control
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Solution Overview
Problem
Rotary wing aircraft, such as dual rotary wing aircraft, are susceptible to external conditions like weather, particularly high winds, which can make them difficult to control, especially during landed flight states, requiring pilots to actively manage the main rotary assembly.
Innovation Solution
A control system for aircraft that includes a pilot input device, sensors on the landing gear to sense forces, and a controller that processes pilot inputs and sensed forces to calculate output commands for controlling the aircraft, thereby reducing pilot workload during moderate external conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If pilots actively control the main rotary assembly during landed flight state, then aircraft stability is improved, but pilot workload increases
Solution Approach 1:
The control system automatically senses forces on the landing gear and calculates output commands to control the aircraft without requiring continuous active pilot input. The system serves itself by using sensor data from the landing gear to maintain aircraft stability during landed flight state, reducing the burden on the pilot while keeping the aircraft stable against external disturbances like high winds.
2Measurement precision
If sensors are added to the landing gear to sense forces, then control precision is improved, but device complexity increases
Solution Approach 1:
The control system integrates multiple functions into a single unified system. The same controller that processes pilot inputs also processes sensor data from the landing gear and generates output commands to control the aircraft. This multi-functional approach improves measurement precision through integrated sensing while avoiding additional complexity by consolidating control functions rather than adding separate systems.
3Speed
If the control system uses feedback from landing gear sensors, then response speed to disturbances is improved, but control complexity increases
Solution Approach 1:
The control system continuously receives feedback from sensors on the landing gear that sense forces during landed flight state. This feedback is processed by the controller which calculates output commands to control the aircraft, enabling quick response to external disturbances like wind gusts. The feedback mechanism is integrated into the existing control architecture, providing fast response while managing complexity through systematic integration rather than multiple independent control loops.
Data Source
AI summary
A control system for an aircraft, the system including a pilot input device configured to receive a pilot input, a plurality of sensors, each of the plurality of sensors positioned on a corresponding landing gear of the aircraft and configured to sense a parameter on the corresponding landing gear, and a controller in communication with the plurality of sensors, the controller configured to calculate an output command based on the pilot input and the sensed parameters of the landing gear, the output command including instructions for controlling a rotor of the aircraft.