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Development of mechanical guidance actuators for a supersonic projectile

Published online by Cambridge University Press:  03 February 2016

K. C. Massey,
J. McMichael,
T. Warnock and
F. Hay
K. C. Massey
Affiliation:
Georgia Tech Research Institute, Atlanta, USA
J. McMichael
Affiliation:
Georgia Tech Research Institute, Atlanta, USA
T. Warnock
Affiliation:
Georgia Tech Research Institute, Atlanta, USA
F. Hay
Affiliation:
Georgia Tech Research Institute, Atlanta, USA
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Abstract

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In this paper, the results of a series of experiments funded by DARPA to determine the feasibility of using small actuators to provide directional control for a supersonic projectile are presented. Controlling the flight of the projectile was accomplished by taking advantage of complex shock-boundary-layer interactions produced by mechanical devices. Experimental tests were conducted at GTRI to screen several control concepts and actuator locations. Further experiments were conducted on a scale projectile in a supersonic stream to investigate the rise time of the forces. Several different mechanical actuators were tested which served to provide guidance for future actuator designs. CFD results were also used to predict the results in flight as well as gain insights into the fluid mechanics involved. Flight tests of a Mach 4 round proved the viability of the guidance actuator.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 112 , Issue 1130 , April 2008, pp. 181 - 195
Copyright
Copyright © Royal Aeronautical Society 2008 

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