Accession Number:

ADB177784

Title:

Instrumented Projectile Firings in a 155-mm Regenerative Liquid Propellant Gun (RLPG) System

Descriptive Note:

Technical rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ FIRE SUPPORT ARMAMENT CENTER

Personal Author(s):

Report Date:

1993-11-01

Pagination or Media Count:

132.0

Abstract:

The 155-mm regenerative liquid propellant gun RLPG system was built by General Electric GE specifically for the advanced field artillery system AFAS program. During its development and testing, a series of test firings were conducted at the GE, Malta, NY test facility. These test firings revealed that high frequency pressure oscillations that are known to exist in some RLPG, existed during the firing of this gun. In light of this phenomenon, many experimental studies and model simulations of the propellant ignitioncombustion processes of the RLPG system were performed. These studies were performed by the Ballistic Research Laboratory BRL, Sandia National Laboratories SNL, and the Tactical Systems Department of GE, concluding that the main sources of pressure oscillations are inherent in the combustion process of liquid propellants LP. The New CannonDevelopment Compatibility Section of the Ammunition and Security Technology Division at AEDEC was tasked to investigate the effects of these LP pressure oscillations on projectile components and identify and safety concerns due to these oscillations. This investigation included firing seven instrumented projectiles incorporated of the RLPG 2 and one instrumented projectile out of the XM282 52 cal. tube as a comparison solid propellant gun firing. Seven of the eight instrumented projectiles incorporated pressure transducers, which were designed to measure base pressure profiles at the projectile during the interior ballistic cycle. This is the first time that the Army was able to measure base pressure and map the base pressure profile during the interior ballistic cycle. Liquid propellants, Oscillations, Pressure transducers, Accelerometers, RLPG, Instrumented projectile.

Subject Categories:

  • Ammunition and Explosives
  • Guns
  • Liquid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE