Structure Limits for a 30mm Annular Piston.

Abstract

General Electric Ordnance Systems Div has designed and fabricated at 30-mm regenerative liquid propellant gun (RLPG) system. The fixture was installed at the BRL in July, 1984. The fixture is now being used to evaluate liquid propellants and study various features of the RLPG cycle. The annular injection piston of hte RLPG was subjected to a stress analysis to determine if the existing design could be used in high performance firings. The piston was shown to fail under 558 MPa chamber pressure using finite-element stress analysis. This study concluded that the piston must be redesigned to reduce the unbalanced forces which exist across the thin shell portion of the piston wall before high performance firings with this fixture could be attempted.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1988
Accession Number
ADA194688

Entities

People

  • Cris Watson

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Artillery
  • Chambers
  • Chemistry
  • Combustion
  • Combustion Chambers
  • Guns
  • Ignition
  • Liquid Propellant Guns
  • Liquid Propellants
  • Materials
  • Munitions
  • Propellants
  • Security
  • Stress Analysis
  • Stresses
  • Test Facilities
  • Weapons

Readers

  • Fluid Dynamics.
  • Rocket Propulsion.
  • Software Engineering