An efficient complex modal testing theory for asymmetric rotor systems: Use of unidirectional excitation method

Abstract

A complex modal testing theory is newly developed for asymmetric rotor systems. The theoretical development is made strictly in the stationary co-ordinate system, and this enables a unidirectional excitation technique efficiently to estimate the directional frequency response functions, which greatly lessens the testing efforts and enhances the practicality of the theory. (C) 1997 Academic Press Limited.