A SIMPLIFIED METHOD FOR PREDICTING THE STABlLlN OF AERODYNAMICALLY EXCITED TURBOMACHINERY
نویسنده
چکیده
A method is presented for the quick and accurate prediction of the stability of aerodynamically excited turbomachinery using real eigenvalue/eigenvector data obtained from a rotordynamics model. An expression is presented which uses the modal data and the transmitted torque to provide a numerical value of the relative stability of the system. This approach provides a powerful design tool to quickly ascertain the effects of squeeze-film damper bearings, bearing location, and support changes on system stabil ity.
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