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On the Swerve Response of Projectiles to Control Input.

Author: Douglas Ollerenshaw; Mark Costello; OREGON STATE UNIV CORVALLIS Dept. of MECHANICAL ENGINEERING.
Publisher: Ft. Belvoir : Defense Technical Information Center, APR 2008.
Edition/Format:   eBook : English
Database:WorldCat
Summary:
The swerve response of fin- and spin-stabilized projectiles to control mechanism input is sometimes not intuitive and often surprises smart weapon designers. This report seeks to explain the basic parameters that govern swerve of projectiles excited by control input. By modeling the overall effect of any control mechanism as a non-rolling reference frame force or moment applied to the projectile, we obtain general  Read more...
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Material Type: Internet resource
Document Type: Internet Resource
All Authors / Contributors: Douglas Ollerenshaw; Mark Costello; OREGON STATE UNIV CORVALLIS Dept. of MECHANICAL ENGINEERING.
OCLC Number: 318686152
Notes: Final rept. Oct 2006-Sep 2007.
Description: 30 pages ; 23 x 29 cm

Abstract:

The swerve response of fin- and spin-stabilized projectiles to control mechanism input is sometimes not intuitive and often surprises smart weapon designers. This report seeks to explain the basic parameters that govern swerve of projectiles excited by control input. By modeling the overall effect of any control mechanism as a non-rolling reference frame force or moment applied to the projectile, we obtain general expressions for swerve in terms of basic vehicle parameters. These compact expressions are used to show that maximum swerve response for a fin-stabilized projectile is achieved when the force is applied near the nose of the projectile, while maximum swerve response for a spin-stabilized projectile is achieved when the force is applied near the base of the projectile.

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