Flight Dynamic Response of Spinning Projectiles to Lateral Impulsive Loads
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Published:2004-09-01
Issue:3
Volume:126
Page:605-613
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ISSN:0022-0434
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Container-title:Journal of Dynamic Systems, Measurement, and Control
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language:en
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Short-container-title:
Author:
Cooper G. R.1, Costello Mark2
Affiliation:
1. Weapons and Materials Research Directorate, U.S. Army Research Laboratory, Aberdeen Proving Ground, MD 2. Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Abstract
The linear theory for spinning projectiles is extended to account for the application of a simple lateral square impulse activated during free flight. Analytical results are shown to produce simple contributions to the familiar aerodynamic jump formulation. Inquiries regarding jump smearing caused by nonzero impulse length are addressed and answered. The formulation shows for sufficiently long-term target interception, lateral impulse trajectory response for a guided projectile is independent of when the impulse is activated during the yaw cycle. Simple limits show the presented results reducing to those previously found for a zero-spin projectile acted upon by a singular lateral impulse.
Publisher
ASME International
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference6 articles.
1. Harkins, T. E., and Brown, T. G., 1999, “Using Active Damping as a Precision-Enhancing Technology for 2.75-Inch Rockets,” U.S. Army Research Laboratory, Aberdeen Proving Ground, MD, ARL-TR-1772. 2. Jitpraphai, T., and Costello, M., 2001, “Dispersion Reduction of a Direct Fire Rocket Using Lateral Pulse Jets,” J. Spacecr. Rockets, 38, pp. 929–936. 3. Amitay, M., Smith, D., Kibens, V., Parekh, D., and Glezer, A., 2001, “Aerodynamic Flow Control Over an Unconventional Airfoil Using Synthetic Jet Actuators,” AIAA J., 39, pp. 361–370. 4. Murphy, C. H., 1963, “Free Flight Motion of Symmetric Missiles,” BRL Report No. 1216, U.S. Army Ballistic Research Laboratories, Aberdeen Proving Ground, MD. 5. McCoy, R. L., 1999, Modern Exterior Ballistics: The Launch and Flight Dynamics of Symmetric Projectiles, Schiffer Publishing Ltd., Atglen, PA.
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