Gun barrel vibration absorber
US6167794A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A21/44
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.