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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

A Reduced-Order Model for Evaluating the Effect of Rotational Speed on the Natural Frequencies and Mode Shapes of Blades

[+] Author and Article Information
P. Marugabandhu, J. H. Griffin

Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213

J. Eng. Gas Turbines Power 125(3), 772-776 (Aug 15, 2003) (5 pages) doi:10.1115/1.1448327 History: Received November 01, 1999; Revised February 01, 2000; Online August 15, 2003
Copyright © 2003 by ASME
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References

Figures

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Geometry of cantilevered tapered plate
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Frequencies of first five modes versus rotational speed
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Frequency veering and mode shape changes
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Comparison of frequencies
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Comparison of modal content

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