Projectile Motion and Loads Versus Travel in Gun Tube

Abstract

Using a Le Duc representation of the pressure-travel curve, the linear and angular velocity and acceleration of the projectile are determined as a function of travel within the gun tube. With the motion parameters established, the set-back force, spin force, and spin moment are calculated as a function of travel within the gun tube. Based on these equations a computer program is developed which outputs, both graphically and in tabular form, the force, moment, and motion parameters for the projectile during the interior ballistic regime. The program requires the input of the projectile weight, diameter, polar moment of inertia, muzzle velocity, gun length, maximum pressure, location of maximum pressure, and the rifling twist. A FORTRAN listing of the program is given and the program illustrated by a sample problem.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA037905

Entities

People

  • Robert A. Muldoon

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Angular Acceleration
  • Computer Programs
  • Computers
  • Diameters
  • Engineering
  • Equations
  • Inertia
  • Information Processing
  • Materials
  • Materials Laboratories
  • Military Research
  • Moment Of Inertia
  • Munitions
  • Muzzle Velocity
  • Projectiles
  • Rotating Bands
  • Structural Integrity

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Marine Hydrodynamics
  • ballistics.