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Time-varying dynamics of a micro air vehicle with variable-sweep morphing
Chakravarthy, Animesh Grant, Daniel T. Lind, Rick
Chakravarthy, Animesh
Grant, Daniel T.
Lind, Rick
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2012-05
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A. Chakravarthy, D. T. Grant and R. Lind, “Time-Varying Dynamics of a Micro Air Vehicle with Variable Sweep Morphing”, Journal of Guidance, Control and Dynamics, Vol. 35, No. 3, May-June 2012.
Abstract
In this paper, the longitudinal dynamics of a fast-morphing, variable-wing-sweep micro air vehicle are investigated from a flight dynamics perspective. The time scales over which the morphing occurs are of the same order as the flight dynamics of the micro air vehicle, due to which the time-varying aspects of the dynamics must be carefully evaluated. The time-varying characteristic equation (which represents a generalization of the standard linear time-invariant characteristic equation) for this micro air vehicle is presented in analytic form, and this enables a characterization of the influence of different morphing trajectories on the flight dynamics. The concept of a time-varying pole is subsequently adopted and the flight dynamic properties of the time-varying modes are determined. A tool to properly evaluate the sensitivity of the time-varying modes to different morphing trajectories is demonstrated.
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The American Institute of Aeronautics and Astronautics
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Journal of Guidance, Control and Dynamics;2012, Vol. 35, No. 3
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0731-5090