Unbalance Response of Flexible Rotors Coupled With Torsion

[+] Author and Article Information
H. Diken

Dept. of Mechanical Engr., Aeronautical Engr., and Mechanics, Rensselaer Polytechnic Institute, Troy, NY

I. G. Tadjbakhsh

Rensselaer Polytechnic Institute, Troy, NY

J. Vib., Acoust., Stress, and Reliab 111(2), 179-186 (Apr 01, 1989) (8 pages) doi:10.1115/1.3269839 History: Received June 01, 1986; Online November 23, 2009


The effect of coupling with torsion on the unbalance response of flexible rotors, supported by isotropic flexible and damped bearings is investigated. Flexural vibrations of the shaft-disk system are coupled with torsional oscillations through mass eccentricity. The governing equations of motion of the continuous system are solved numerically with a modified Myklestad-Prohl method without the necessity of considering an equivalent lumped system. The cases of constant or harmonic torque applied to the disk are considered. Gyroscopic, rotary inertia, shear deformation, external and internal damping effects are taken into account.

Copyright © 1989 by ASME
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