Improved Dispersion of a Fin-Stabilized Projectile Using a Passive Moveable Nose

Abstract

A key and often quoted metric associated with gun systems is impact point accuracy. The extent of impact dispersion is a complex function of a battery of parameters, including gun geometry and tolerances, the fire control system, projectile manufacturing tolerances, etc. The work reported here investigates potential impact point accuracy improvement for a penetrator-type projectile realized by replacing the rigid nose cone wind screen with a passive gimballed nose. By comparing the impact point dispersion of a rigid projectile with a similar gimballed nose projectile, it is shown that impact point accuracy can be significantly improved. For the example penetrator projectile considered, impact point dispersion is reduced by more than 50%.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2001
Accession Number
ADA390803

Entities

People

  • Mark Costello
  • Raditya Agarwalla

Organizations

  • Oregon State University

Tags

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Angular Motion
  • Control Systems
  • Differential Equations
  • Equations
  • Fire Control Systems
  • Free Flight
  • Impact Point
  • Mechanical Engineering
  • Military Research
  • Monte Carlo Method
  • Munitions
  • Nose Tips
  • Physical Properties
  • Projectile Trajectories
  • Projectiles
  • Trajectories

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • ballistics.