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 inJournal of sound and vibration Vol. 189; no. 5; pp. 587 - 608
Main Authors Chun, Sang-Bok, Lee, Chong-Wen
Format Journal Article
LanguageEnglish
Published London Elsevier Ltd 08.02.1996
Elsevier
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)
Turbomachine
Vibration
Component mode synthesis
Blades
Flexible rotor
Analytical method
Shaft
Turbine blade
Coriolis acceleration
Substructure
Vibrational mode
Disk
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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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-460X
1095-8568
DOI:10.1006/jsvi.1996.0038