Patent Number: 6,167,794

Title: Gun barrel vibration absorber

Abstract: A weapon system includes a gun barrel and a vibration absorber fitted onto a free end of the gun barrel. The vibration absorber includes a compliant energy storage device, such as a spring, and a mass secured to the energy storage device. The potential energy stored in the spring and the kinetic energy stored in the mass inertia are dissipated in part as friction, and re-introduced in part to the gun barrel such that the re-introduced energy is out of phase relative to the gun barrel motion. As a result, the vibration absorber does not totally dissipate the stored energy, but rather reshapes the receptance of the gun system so as to significantly reduce the vibration energy that migrates into the gun structure from known disturbances. This improves the overall accuracy of the gun system. In addition, the vibration absorber reduces the load between the gun barrel and the projectile during launch, thereby reducing the gun barrel muzzle wear and the exit yaw rate of the projectile.

Inventors: Kathe; Eric L. (Ballston Lake, NY)

Assignee: The United States of America as represented by the Secretary of the Army

International Classification: F41A 21/36 (20060101); F41A 21/44 (20060101); F41A 21/00 (20060101); F41A 021/00 (); F41A 021/44 ()

Expiration Date: 01/02/2018