Resonator device for damping the vibrations of a rotor of a rotary-wing aircraft
US4281967A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1979 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Feb 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/50
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a device for damping the vibrations of a rotary-wing aircraft rotor. An annular weight is disposed concentrically of the rotor axis. This weight is supported by at least three resiliently deformable elements such as helical springs, radially biased in directions distributed regularly around the rotor axis. The inner ends of the springs directly bear on a part extending the rotor shaft axially. Their outer ends directly bear on the annular weight so that the spring apply statically balanced centrifugal thrusts to the annular weight. The springs are so still that they support the annular weight without substantially bending.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.