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TECHNICAL PAPERS

Compensation of Cross-Coupling Stiffness and Increase of Direct Damping in Multirecess Journal Bearings Using Active Hybrid Lubrication: Part I—Theory

[+] Author and Article Information
Ilmar Ferreira Santos

MEK-Department of Mechanical Engineering, DTU-Technical University of Denmark, 2800 Lyngby, Denmarke-mail: ifs@mek.dtu.dk

Flávio Yukio Watanabe

DPM-Department of Mechanical Design, UNICAMP-State University of Campinas, 13083-970 Campinas, SP, Brazile-mail: fywatana@unimep.br

J. Tribol 126(1), 146-155 (Jan 13, 2004) (10 pages) doi:10.1115/1.1631015 History: Received March 26, 2002; Revised March 06, 2003; Online January 13, 2004
Copyright © 2004 by ASME
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References

Figures

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Active hybrid journal bearing—geometric characteristics and operational principle
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Journal eccentricity and attitude angle
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Dimensionless dynamic coefficients versus g1, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Ψ=2Λ and g2=0)
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Dimensionless critical mass and whirl frequency ratio versus g1, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Ψ=2Λ and g2=0)
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Dimensionless dynamic coefficients versus g2, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Ψ=2Λ and g1=0)
Grahic Jump Location
Dimensionless critical mass and whirl frequency ratio versus g2, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Λ=2,Ψ=2Λ and g1=0)
Grahic Jump Location
Dimensionless dynamic coefficients versus g1, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Ψ=2Λ and g2=0)
Grahic Jump Location
Dimensionless critical mass and whirl frequency ratio versus g1, for ⋅kg=0,+kg=1,×kg=2,*kg=3(ε0=0.3,Λ=2,Ψ=2Λ and g2=0)

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