VIBRATION ANALYSIS OF SHAFT-BLADED DISK SYSTEM BY USING SUBSTRUCTURE SYNTHESIS AND ASSUMED MODES METHOD

An analytical substructure synthesis and assumed modes method is developed to investigate the effect of the flexibility of a bladed disk assembly on the vibrational mode of a flexible rotor system. In modeling the system, Coriolis forces, gyroscopic moments and centrifugal stiffening effects are tak...

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Bibliographic Details
Published in:Journal of sound and vibration 1996-02, Vol.189 (5), p.587-608
Main Authors: Chun, Sang-Bok, Lee, Chong-Wen
Format: Article
Language:English
Subjects:
Applied sciences
Drives
Exact sciences and technology
Flexible structures
Mathematical models
Mechanical engineering. Machine design
Rotation
Rotors
Shafts (machine components)
Shafts, couplings, clutches, brakes
Structural analysis
Vibrations (mechanical)
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Summary:An analytical substructure synthesis and assumed modes method is developed to investigate the effect of the flexibility of a bladed disk assembly on the vibrational mode of a flexible rotor system. In modeling the system, Coriolis forces, gyroscopic moments and centrifugal stiffening effects are taken into account. Then the coupled vibrations between the shaft and bladed disk are extensively investigated, by using simplistic models, as the shaft rotational speed and the pretwist and stagger angles of blade are varied.
ISSN:0022-460X
1095-8568
DOI:10.1006/jsvi.1996.0038