Device for reducing the vibration generated on the structure of a rotary-wing aircraft
US6279704A · kind A · utility
28Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a device for reducing vibration generated on the structure (2) of a rotary-wing aircraft, particularly a helicopter. According to the invention, the device (1A) comprises at least one flapping mass (3) connected to the structure (2), at least one controllable actuating device (5A) capable of causing the flapping mass (3) to flap, and a control unit (UC1) intended to control the actuating device (5A) in such a way that it causes the flapping mass (3) to flap at a frequency and at an amplitude which allows the vibrations to be reduced and minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.