This article presents a novel bat-like micro air vehicle inspired by the morphing-wing mechanism of bats. The goal of this paper is twofold. Firstly, a modelling framework is introduced for analysing how the robot should maneuver by means of changing wing morphology. This allows the definition of requirements for achieving forward and turning flight according to the kinematics of the wing modulation. Secondly, an attitude controller named backstepping+DAF is proposed. Motivated by the biological fact about the influence of wing inertia on the production of body accelerations, the attitude control law incorporates wing inertia information to produce desired roll (φ) and pitch (θ) acceleration commands (DAF function). This novel control approach is aimed at incrementing net body forces (Fnet ) that generate propulsion. Simulations and wind-tunnel experimental results have shown an increase about 23% in net body force production during the wingbeat cycle when the wings are modulated using the DAF function as a part of the backstepping control law. Results also confirm accurate attitude tracking in spite of high external disturbances generated by aerodynamic loads at airspeeds up to 5ms−1. ; This work is funded by the ROBOCITY 2030-II, sponsored by the Community of Madrid.Measurements of aerodynamic and inertial forces have been carried out using the Brown University wind-tunnel facility. The authors would like to thank to professors Kenny Breuer and Sharon Swartz for providing the support and useful knowledge about the robot design, bat flight kinematics and aerodynamics. ; Peer Reviewed


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    Title :

    Inertial attitude control of a bat-like morphing-wing micro air vehicle


    Contributors:

    Publication date :

    2013-01-01



    Type of media :

    Miscellaneous


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



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