A meta aircraft is an air vehicle composed of a set of independent aircraft that are connected together in flight to form a larger composite aircraft. This paper explores the dynamics of meta aircraft systems with a focus on the changes in the aircraft flight dynamic modes and flexible modes of the system. Specifically, when aircraft are connected, basic flight dynamic modes such as the phugoid, short period, dutch roll, spiral, and roll modes change as a function of the number of connected aircraft. For aircraft connected in a wing-tip-to-wing-tip configuration, the longitudinal modes remain largely invariant with respect to the number of aircraft, whereas lateral modes are variable for both tip-to-tail and wing-tip-to-wing-tip connection configurations. In addition, connected aircraft exhibit complex flexible modes that change based on the characteristics of the connection joint and the number of connected aircraft. These conclusions are reached using a rigid six-degree-of-freedom representation for a single aircraft, where aircraft are connected through a set of linear and rotational elastic elements modeling the connection mechanism. Aerodynamic loads from all lifting surfaces are computed using a nonlinear lifting-line approach to enable aerodynamic wake interactions between connected aircraft.


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    Title :

    Meta Aircraft Flight Dynamics


    Contributors:

    Published in:

    Journal of Aircraft ; 52 , 1 ; 107-115


    Publication date :

    2015-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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