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NSF Workshop on Biosensor and Bioactuator Resarch. Xinyan Deng Bio-Robotics Laboratory Department of Mechanical Engineering University of Delaware http://research.me.udel.edu/deng. Characteristics of Dragonfly Flight (videos). Horizontal Hovering: Swift to change flight modes
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NSF Workshop on Biosensor and Bioactuator Resarch Xinyan Deng Bio-Robotics Laboratory Department of Mechanical Engineering University of Delaware http://research.me.udel.edu/deng
Characteristics of Dragonfly Flight (videos) • Horizontal Hovering: • Swift to change flight modes • Intercept prey in air • Unique flight modes: • Fly backwards • Fly sideways • Gliding flight • Flight Data: • 90km/h (vel); 130m/s^2 (acc); • Max thrust: 13 times body weight • 180 deg in 3 wingbeats (~2000deg/s) • 20~90 Hz
Talk Outline Current Research (videos)
Effect of Forward Speed on Lift in Hindwing Under interaction Without interaction Individual flapping
Effect of Phase Difference on Lift in Hingwing without forewing 0 Ph. 1/2 cycle Ph. 1/4 cycle Ph.
Talk Outline Experimental Results • Polar plot • Lift Coefficients • Drag Coefficients a c b
Bio-inspired Sensors for Flight Control • Previous work on Sensor: • Ocelli: roll, pitch angles • Magnetic Compass: yaw angle • Haltere: roll, pitch, and yaw rates • Current Work on Sensor: • Sensor Fusion algorithms • Reafference in biological control systems • Flight Stability and Control: • Averaging theory for flight control • Wing motion parameters as control inputs • Passive stability in flapping flight
Grand Challenge in Biosensor and Bioactuator Research • Bio-inspired sensors for navigation and control • Gravitational, inertia, and linear velocity sensors. • Antennae sensors • Bio-inspired sensory-motor control : reafference; sensor fusion. • Bio-inspired distributed sensors • Wing surface pressure sensors. • Wing, body, and leg hair sensors. • Bio-inspired actuators • Coupling of sensing and actuation on the wing (morphing). • Artificial muscles.