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TECHNICAL PAPERS

Stability Analysis of a Rotating System Due to the Effect of Ball Bearing Waviness

[+] Author and Article Information
G. H. Jang, S. W. Jeong

PREM, Department of Mechanical Engineering, Hanyang University, Seoul, 133-791, Korea

J. Tribol 125(1), 91-101 (Dec 31, 2002) (11 pages) doi:10.1115/1.1504090 History: Received February 22, 2002; Revised June 18, 2002; Online December 31, 2002
Copyright © 2003 by ASME
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References

Figures

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Time response of the angular displacement corresponding to the unstable condition of ball bearing (inner race waviness of order=16,Ω=15000 rpm,ρ=0.2199,e=0.00102)
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Stability chart for the angular motion with the characteristic curves (□: stable region, ⧄: unstable region)
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Time responses of the angular displacements for varying ρ and e: (a) ρ=1.0,e=0.4; (b) ρ=0.25,e=0.01, and (c) ρ=2.4,e=0.2
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Stability chart for the angular motion for varying μ: (a) μ=0.05; and (b) μ=0.1 (□: stable region, ⧄: unstable region)
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Time response of the radial displacement corresponding to the unstable condition of ball bearing (ρ=1.0045,e=0.101576)
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Stability chart for the translational motion with the characteristic curves (□: stable region, ⧄: unstable region)
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Time responses of the radial displacements for varying ρ and e: (a) ρ=0.25,e=0.2; (b) ρ=1.0,e=0.6, and (c) ρ=2.0,e=0.6
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Stability chart for the translational motion (□: stable region, ⧄: unstable region)
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Stiffness coefficients and their frequency spectra in the case where the ball has the waviness of order 2
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Radial stiffness coefficient and its frequency spectrum in the case where the left and right bearings have the inner race waviness of order 15 with 0 deg phase difference
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Stiffness coefficients and their frequency spectra in the case where the left and right bearings have the inner race waviness of order 16 with 180 deg phase difference
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(a) Rigid rotor supported by two ball bearings in x-z plane; and (b) ball bearing in x-y plane

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