Accession Number:

ADA399837

Title:

Adaptive Gun Barrel Vibration Absorber

Descriptive Note:

Final rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s):

• Littlefield, Andrew
• Kathe, Eric

Report Date:

2002-03-01

Pagination or Media Count:

26.0

Abstract:

Gun barrel vibrations lead to dispersion in the shot patterns. Thus, reducing these vibrations should lead to increased accuracy. Since the muzzle is the anti-node for all vibration modes and its vibrations have the greatest effect on shot dispersion, it is the obvious location to attempt to dampen the vibrations. A model of the gun barrel was created in MATLABregistered and verified by modal impact testing. Modal impact testing was done for the barrel alone and for three different muzzle brake vibration absorber configurations. Significant reductions in muzzle vibrations were achieved using the vibration absorber. Methods of making the vibration absorber adaptive and models of such a system are presented.

Descriptors:

• *VIBRATION
• *GUN BARRELS
• DISPERSING
• FIRING MECHANISMS(WEAPON)
• IMPACT TESTS
• VIBRATION ISOLATORS
• ABSORBERS(EQUIPMENT)
• SMART WEAPONS
• GUN MUZZLES

Subject Categories:

• Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE