Theory, Guidance, and Flight Control for High Maneuverability Projectiles

Report No. ARL-TR-6767
Authors: Frank Fresconi; Ilmars Celmins; Sidra I. Silton
Date/Pages: January 2014; 58 pages
Abstract: This report examines the problem of enhancing maneuverability of gun-launched munitions using low-cost technologies. The fundamental theory underpinning guided-projectile flight systems, including nonlinear equations of motion for projectile flight, aerodynamic modeling, actuator dynamics, and measurement modeling, is outlined. Manipulation of these nonlinear models into linear system models enables airframe stability investigation and flight control design. A basic framework for low-cost guidance, navigation, and control of high-maneuverability projectiles is proposed. High-fidelity modeling of system dynamics is critical to accommodating low-cost technologies in flight control. Theory was implemented in simulation and exercised for a guided-projectile system. Results demonstrate essential features of this multidisciplinary design problem and identify critical trade study parameters. Monte Carlo analysis indicated that the cost associated with measurements of a threshold accuracy rather than actuation technologies prescribes guided-system performance.
Distribution: Approved for public release
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Last Update / Reviewed: January 1, 2014