Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8

44 Developments in the Prediction of Full Field Dynamics in the Nonlinear Forced Response of Reduced Order System Models 487 Component A Component B TuA TuB Un A= TuAUaA U n B= TuBUaB [ ] UA UB = [ ] Un Ua A Ua B Full Space Component Models Reduced Order System Model Reduced Order System Modes Expansion Matrix Expansion Matrix Expanded System Modes Fig. 44.3 Overall expansion process schematic using the transformation matrices (TA u andT B u) from unconnected system components. The reduced order model mode shapes are expanded to obtain full resolution mode shapes of the two beam system, where the red and blue circles indicates DOF available in each of the models

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