Accession Number : ADP009062

Title :   Validation of Projectile Transient Response Models for the Study of Pressure Oscillations in Guns,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Hopkins, David A. ; Li, Ting ; Berman, Morris

Report Date : SEP 1993

Pagination or Media Count : 16

Abstract : This paper presents results that provide a validated simulation approach to study the behavior of projectiles subjected to transient in-bore loadings. In this study, the PXR6353 instrumented round was modeled. The approach used features vibration studies of the components of this projectile. This includes a comparison of the vibration modes determined by finite element techniques with those modes determined using experimental modal analysis techniques. The ANSYS finite element code was used to generate the analytic model. Both impact and shaker excitation methods were used in the experimental modal analysis phase. The direct comparison between analytical and experimental data showed that the finite element model correctly captured the dominant modes of vibration of the projectile.

Descriptors :   *PRESSURE DISTRIBUTION, *INTERIOR BALLISTICS, *GUN BARRELS, BORES, COMPARISON, EXCITATION, EXPERIMENTAL DATA, MODELS, PROJECTILES, SIMULATION, TRANSIENTS, VIBRATION, OSCILLATION, FINITE ELEMENT ANALYSIS.

Subject Categories : Guns
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE