✦ LIBER ✦

FINITE ELEMENT ANALYSIS OF WHIRL SPEEDS FOR ROTOR-BEARING SYSTEMS WITH INTERNAL DAMPING

✍ Scribed by D.-M. Ku

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 201 KB
Volume: 12
Category: Article
ISSN: 0888-3270
DOI: 10.1006/mssp.1998.0159

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✦ Synopsis

A finite element model belonging to a C 0 -class formulation is presented for the study of whirl speeds and stability of rotor-bearing systems. In addition to the effects of translational and rotatory inertia and the gyroscopic moments, the combined effects of transverse shear deformations and the internal viscous and hysteretic damping are also incorporated into the formulation. Results of forward and backward whirl speeds and damped stability are presented and compared with other previously published works. The good convergence and high accuracy of the present finite element model are demonstrated with numerical examples.

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