Aircraft provided with a device for reducing vibration, and a method therefor
US8985502B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 22, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Apr 3, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/004
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft (1) provided with a main gearbox (3) fastened to a load-bearing structure (2) via at least three suspension bars (5). An active vibration absorber (10) is fastened around each suspension bar (5), each vibration absorber (10) being provided with a first mass (11) connected to the associated suspension bar (5) via first resilient means (21), and with a second mass (12) connected to the first mass (11) via second resilient means (22), said vibration absorber (10) having a force generator (15) interposed between the first mass (11) and the second mass (12) and inputting a control force on being instructed by a control unit (16) as a function of information coming from at least one first measurement sensor (17) for sensing monitoring parameters for monitoring the associated suspension bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.