A RASCAL In-Bore Dynamic Analysis of the Task B and Task C Electromagnetic Railguns.

Abstract

Previous RASCAL in-bore gun dynamics analyses 90-mm railguns have shown high transverse accelerations can be expected because of anomalies in the bore straightness. A request was made for similar analyses to be made for the Task B and Task C 90-mm railguns, with the Sabot Launched Electromagnetic Gun KE (SLEKE) II projectile design. Results of the RASCAL analyses showed the importance of matching the contact stiffness of the rear and front bore riders of the SLEKE II designs. Numerous cases were run to show the effects of variations in contact stiffness. Mismatched contact stiffness resulted in elevated transverse accelerations at the less stiff of the two bore riding contacts. Comparisons of the results of this work are made against previous RASCAL analyses. These results verify the effect a kink in the bore centerline profile has on the projectile's in-bore response.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1995
Accession Number
ADA292742

Entities

People

  • Lawrence W. Burton

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Angular Acceleration
  • Center Of Gravity
  • Commerce
  • Composite Materials
  • Dynamic Response
  • Dynamics
  • Electromagnetic Guns
  • Geometry
  • Gun Barrels
  • Guns
  • Materials
  • Measurement
  • Military Research
  • Projectiles
  • Stiffness
  • Transient Response Analysis
  • Transverse

Fields of Study

  • Physics

Readers

  • Structural Dynamics.
  • ballistics.