Tracked Control Surfaces for Aircraft Stability and Maneuverability
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Solution Overview
Problem
Current control systems for aircraft, missiles, projectiles, and underwater vehicles face challenges in achieving both stability and maneuverability, especially when launched at angles from moving aircraft, as they require large control surfaces that compromise maneuverability and are inadequate in redirecting cross-winds, leading to instability and tumbling.
Innovation Solution
The implementation of movable control surfaces along a track system that allows for infinite adjustment of the center of pressure relative to the center of gravity, enabling optimal stability or maneuverability configurations in real-time through sensor feedback and onboard control systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If large control surfaces are used to overcome cross-winds and yawing moment during angled launch, then stability is improved, but maneuverability deteriorates because the center of pressure is placed far behind the center of mass
Solution Approach 1:
The control surfaces are made movable along tracks positioned on the missile body, allowing their longitudinal position to be dynamically adjusted during flight. This enables the center of pressure to be moved forward or backward relative to the center of mass, providing both stability (when center of pressure is behind center of mass) and maneuverability (when center of pressure is near or ahead of center of mass) as needed for different flight phases
Solution Approach 2:
The control system is divided into multiple independent control surfaces that can be positioned at different locations along the missile body. Each control surface can be independently moved along its track, allowing separate optimization of stability and maneuverability characteristics by distributing control surfaces at different longitudinal positions
2Adaptability or versatility
If control surfaces are fixed in position, then device complexity is reduced, but adaptability deteriorates because the vehicle cannot dynamically reconfigure stability and aerodynamic performance
Solution Approach 1:
The control surfaces are made movable along tracks positioned on the missile body, allowing their longitudinal position to be dynamically adjusted during flight. This enables the center of pressure to be moved forward or backward relative to the center of mass, providing both stability (when center of pressure is behind center of mass) and maneuverability (when center of pressure is near or ahead of center of mass) as needed for different flight phases
Solution Approach 2:
The control system uses feedback from sensors to automatically adjust control surface positions based on actual flight conditions such as angle of attack, sideslip angle, and acceleration. This closed-loop control enables dynamic reconfiguration without requiring complex manual intervention, as the system self-adjusts to maintain optimal stability and maneuverability characteristics
Data Source
AI summary
The present invention relates to an aircraft, missile, projectile or underwater vehicle with an improved control system, an improved control system and a method of maneuvering an aircraft, missile, projectile or underwater vehicle. More particularly, the present invention relates to an aircraft, missile, projectile or underwater vehicle with control surfaces that are movable along a track. The present invention further relates to a method of controlling a aircraft, missile, projectile or underwater vehicle using such a control system. One of the technical advantages of the control system on a track (or “tracked control surface”) over other aircraft, missile, projectile or underwater vehicle control systems is that the tracked control surface system enables the aircraft, missile, projectile or underwater vehicle to have an unlimited number of configurations, each configuration being tailored to the specific stability or maneuverability requirements during a specific portion of the flight.