COMPLEX TIME-SERIES ANALYSIS FOR ROTOR DYNAMICS IDENTIFICATION - APPLICATIONS

An effective fitting strategy in the directional ARMAX model-based app roach is proposed for the rotor dynamics identification. The strategy is based on a priori knowledge of the degree of anisotropy in rotor sy stems gained from directional frequency response estimates. In additio n, the anisotropy contribution factor is introduced in an effort to qu antify the degree of system anisotropy. Finally, the applicability and effectiveness of the proposed strategy are investigated experimentall y. (C) 1997 Academic Press Limited.