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Pitching Moment Generation in an Insect-Mimicking Flapping-Wing System

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Abstract

Unlike birds, insects lack control surfaces at the tail and hence most insects modify their wing kinematics to produce control forces or moments while flapping their wings. Change of the flapping angle range is one of the ways to modify wing kinematics, resulting in relocation of the mean Aerodynamic force Center (mean AC) and finally creating control moments. In an attempt to mimic this feature, we developed a flapping-wing system that generates a desired pitching moment during flapping- wing motion. The system comprises a flapping mechanism that creates a large and symmetric flapping motion in a pair of wings, a flapping angle change mechanism that modifies the flapping angle range, artificial wings, and a power source. From the measured wing kinematics, we have found that the flapping-wing system can properly modify the flapping angle ranges. The measured pitching moments show that the flapping-wing system generates a pitching moment in a desired direction by shifting the flapping angle range. We also demonstrated that the system can in practice change the longitudinal attitude by generating a nonzero pitching moment.

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Correspondence to Hoon Cheol Park.

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Truong, T.Q., Phan, V.H., Sane, S.P. et al. Pitching Moment Generation in an Insect-Mimicking Flapping-Wing System. J Bionic Eng 11, 36–51 (2014). https://doi.org/10.1016/S1672-6529(14)60018-4

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  • DOI: https://doi.org/10.1016/S1672-6529(14)60018-4

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