Dual rotor vibration monitoring
US8313279B2 · kind B2 · utility
9Cited by
14References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2008 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | May 31, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/96
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Vibration is monitored in a dual rotor engine. A first total vibration of the engine is measured during operation. Relative phase of the two rotors is then clocked, and a second total vibration of the engine is then measured during operation. First and second total unbalances are then resolved at a common response frequency from the measured total vibrations. First and second rotor unbalances are then resolved for the corresponding rotors from the first and second total unbalances. In a further method, corresponding corrective balance weights may be determined for offsetting the resolved rotor unbalances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.