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TECHNICAL PAPERS

Ritz Series Analysis of Rotating Shaft System: Validation, Convergence, Mode Functions, and Unbalance Response

[+] Author and Article Information
Nicole L. Zirkelback, Jerry H. Ginsberg

G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Vib. Acoust 124(4), 492-501 (Sep 20, 2002) (10 pages) doi:10.1115/1.1501081 History: Received October 01, 2001; Revised April 01, 2002; Online September 20, 2002
Copyright © 2002 by ASME
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References

Figures

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Relationships between axes and rotations for a differential shaft element
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Overhung rotor system with two bearings in 20. κ=2,738,τ=0.0016,μd=0.4775,rP=0.07303,rT=0.05164,kyy=407.4,kzz=651.9,cyy=czz=5.093.
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Critical speed map with a 1X synchronous line for an overhung rotor bearing system. Comparison with the finite element method in 20.
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Rezoning convergence study. Markers denote critical speed number.
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Convergence study with generalized coordinates qj
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Mode function magnitudes and phase angles in terms of elliptical parameters (a,b, and θ) for the first and second critical speeds
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Mode function magnitudes and phase angles in terms of elliptical parameters (a,b, and θ) for the third and fourth critical speeds
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Mode function magnitudes and phase angles in terms of elliptical parameters (a,b, and θ) for the fifth and sixth critical speeds
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Unbalance response magnitudes and phase angles for displacements v and w

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