Evaluation of bending critical speeds of hydrogenerator shaft lines by using the transfer matrix method
Published online on November 28, 2012
Abstract
In this study, the transfer matrix method is used to predict bending critical speeds of hydrogenerator shaft lines. A computer routine was developed for the calculations and this code is applied to two industrial hydrogenerators. The obtained results are compared with the data/guarantees from the equipments’ manufacturers. It is concluded that the present approach is a useful tool for rotor dynamics analysis at early design phases of hydrogenerator shaft lines.