Dynamic Stability of Rotating Shafts in Viscous Fluids

[+] Author and Article Information
W. H. Walston

University of Delaware, Newark, Del.

W. F. Ames

Department of Mechanical Engineering, University of Delaware, Newark, Del.

L. G. Clark

Mechanical Engineering Department, University of Delaware, Newark, Del.

J. Appl. Mech 31(2), 291-299 (Jun 01, 1964) (9 pages) doi:10.1115/1.3629600 History: Received June 11, 1963; Online September 15, 2011


Stability characteristics of an overhanging shaft immersed in a viscous fluid are investigated experimentally. The predominance of two effects, damping and virtual mass, are separated and explored as they affect amplitude and critical speed. A correlation equation for amplitude as a function of viscosity, velocity, and mass is developed with the aid of statistical regression analysis. The techniques of regression analysis are summarized in the Appendix.

Copyright © 1964 by ASME
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