Rotor hub vibration attenuator
US8424799B2 · kind B2 · utility
7Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | May 17, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/004
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vibration attenuator for an aircraft has at least one weight mounted in a rotating system of a rotor hub of the aircraft, each weight being rotatable about an axis of rotation of the hub relative to the hub and to each other weight. Drive means are provided for rotating each weight about the axis of rotation at a selected speed for creating oscillatory shear forces that oppose and attenuate rotor-induced vibrations having a selected frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.