Bioinspired morphing wings for extended flight envelope and roll control of small drones

Area of Science:

• Robotics
• Aerodynamics
• Biomimetics

Background:

• Small drones require adaptable aerodynamic capabilities for diverse flight conditions, such as obstacle avoidance and high wind resistance.
• Traditional fixed-wing designs struggle to meet these varied aerodynamic demands optimally.
• Birds exhibit wing morphing to adapt their flight characteristics, offering a biological inspiration for drone design.

Purpose of the Study:

• To introduce a novel morphing wing design for small drones inspired by avian wing adaptation.
• To enable rapid modification of wing geometry to meet different aerodynamic requirements.
• To enhance drone performance in terms of maneuverability, speed, and wind resistance.

Main Methods:

• Development of a morphing wing structure utilizing artificial feathers.
• Aerodynamic performance evaluation through computational simulations.
• Experimental validation using wind tunnel measurements.
• Outdoor flight testing with a small drone equipped with the morphing wing.

Main Results:

• A fully deployed wing configuration demonstrated enhanced maneuverability.
• A folded wing configuration provided low drag for high-speed flight and improved performance in strong headwinds.
• Asymmetric wing folding was shown to be effective for drone roll control.
• The morphing wing's aerodynamic performance was validated across simulations, wind tunnel tests, and outdoor flights.

Conclusions:

• The novel morphing wing design successfully addresses the varied aerodynamic requirements of small drones.
• This bio-inspired technology offers significant improvements in flight adaptability, maneuverability, and high-speed performance.
• The morphing wing technology holds promise for enhancing the operational capabilities of small unmanned aerial vehicles.