%0 Journal Article %T Formulation of a Transfer Function between Rotor Responses on a High Speed Balancing Machine and in Turbo Machinery by System Identification %J Energy and Power %@ 2163-1603 %D 2012 %I %R 10.5923/j.ep.20120206.01 %X In this paper the authors propose an innovative method for the determination of a transfer function (MTF) between the rotor responses on a balancing machine (HSB) and on turbo machinery (SP). The prediction of the rotor behavior in its turbo machine final housing is a crucial problem for turbo machinery manufacturers and very complex to solve using classical approaches. The proposed method uses a particular MTF formula, calculated with a black/box approach based on the application of the theory of System Identification, using the rotor responses in SP and in HSB as input and output respectively. MTF was determined by a regression analysis of the responses in HSB and SP of 10 rotors; subsequently it was tested and validated on other 15 rotors. The results demonstrate that proposed MTF simulates a rotor behavior in SP with a satisfactory overlapping of the measured output. %K Rotor Dynamics %K Balancing %K System Identification %K Vibrations %K Black-Box %K Transfer Function %U http://article.sapub.org/10.5923.j.ep.20120206.01.html