Department of Electrical and Electronics Engineering

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Author: search.filters.author.Mukherjee, Bijoy K.Subject: search.filters.subject.Asymmetric aircraft

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    High Alpha Maneuvering with a Laterally Asymmetric Fighter Aircraft: A Backstepping Control Approach
    (IEEE, 2020) Mukherjee, Bijoy K.
    Asymmetric release of payload or partial damage of wing shifts the center-of-gravity (c.g.) of a fighter aircraft to new positions resulting in a highly coupled and nonlinear asymmetric dynamics. Since controlling the aircraft becomes much more challenging when it tries to perform some high alpha maneuver with such lateral asymmetry, implementation of nonlinear control becomes mandatory for the safety of the aircraft. In the present paper, the highly coupled asymmetric dynamics is first converted to the strict feedback form and thereafter a backstepping control is designed to autonomously execute the high alpha cobra maneuver under significant lateral c.g. shift. The simulation results show the maneuver performance under lateral asymmetry to be almost the same as that without any asymmetry.
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    Backstepping Control for Asymmetric Fighter Aircraft Executing the High Alpha Herbst Maneuver
    (IEEE, 2021) Mukherjee, Bijoy K.
    Asymmetric dynamics of a combat aircraft becomes highly coupled when center-of-gravity (c.g.) of an aircraft shifts to new position because of either partial wing damage or asymmetric release of store. It becomes difficult for an aircraft to execute high angle maneuvering under asymmetric center- of-gravity shift as nonlinearity and dynamics get more complex, under such situation implementation of nonlinear control becomes inevitable. In the present study, dynamics is first converted into strict feedback form and then backstepping control scheme is implemented to execute high alpha herbst maneuver under significant lateral center-of- gravity shift. The simulation result obtained by the present study advocates the maneuver performance under lateral asymmetry to be almost similar as that without any asymmetry.