Research on the Effects of the Generator with Differential Supporting Characteristics on Vibrations of the Three-Bearing Structure
Advanced Materials Research(2014)
Abstract
The finite element model of a 1000MW unit was set up and vibrations of the three-bearing structure were studied. The results show that the generator supporting characteristics have great effects on vibrations of the three-bearing structure. Many factors are needed to be considered when field balancing. The generator supporting characteristics should be considered when judging the type and axial position of imbalances. Repeated balancing are invalid and even the vibrations diverge if just following simply the harmonic component method to determine directly the imbalance types. The conclusion reliabilities were further verified with the tests.
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Key words
vibration
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