In rotating beams, the Coriolis force acts through the mass and rotary inertias of the beam. A rotating beam simply supported off the axis of rotation is used as an example to study effects of this Coriolis force on vibration of structures. By adopting such a simple model, mass- and rotary inertia-induced terms in the free vibration responses can be obtained in separate, closed forms. The effect of each of these terms on vibration characteristics of the rotating beam is discussed in relation to parameters such as nonrotating natural frequencies, the rotation speed, and the slenderness ratio. Practical implications of these results in analyses of rotating structures of other types are discussed, for example estimating the significance of rotary inertias in relation to the slenderness ratio and the rotation speed.
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e-mail: jay.kim@uc.edu
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June 2006
Technical Papers
Rotation Effects on Vibration of Structures Seen From a Rotating Beam Simply Supported off the Rotation Axis
J. Kim
J. Kim
Structural Dynamics Research Laboratory, Mechanical Engineering,
e-mail: jay.kim@uc.edu
University of Cincinnati
, Cincinnati, OH 45221-0072
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J. Kim
Structural Dynamics Research Laboratory, Mechanical Engineering,
University of Cincinnati
, Cincinnati, OH 45221-0072e-mail: jay.kim@uc.edu
J. Vib. Acoust. Jun 2006, 128(3): 328-337 (10 pages)
Published Online: November 30, 2005
Article history
Received:
February 7, 2005
Revised:
November 30, 2005
Citation
Kim, J. (November 30, 2005). "Rotation Effects on Vibration of Structures Seen From a Rotating Beam Simply Supported off the Rotation Axis." ASME. J. Vib. Acoust. June 2006; 128(3): 328–337. https://doi.org/10.1115/1.2172261
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