Balancing method for flexible rotor and a balancer applicable to the balancing method
US5408875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1992 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | May 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A balancing method for balancing a flexible rotor is disclosed. First, the rotor is rotated and vibration of the rotor is measured to determine resonance speeds. Vibration exciting forces of frequencies synchronized with the rotor rotation in two orthogonal directions are imparted to the rotor or rotor support bearings while rotating the rotor at a speed near the respective resonance speeds. The amplitude and the phase of the vibration exciting force which reduces the resonance vibration of the rotor are then determined. A correction weight on the basis of the amplitude and the phase of the vibration exciting force is then determined. Balancing work on the rotor such as grinding of the rotor or addition of a mass to the rotor in accordance with the correction weight is then carried out, followed by a rotor rotation conducted for the purpose of confirming the effect of the balancing work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.