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TECHNICAL PAPERS

Modeling and Identification of Gas Journal Bearings: Self-Acting Gas Bearing Results

[+] Author and Article Information
G. Belforte, T. Raparelli, V. Viktorov

Department of Mechanics, Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129 Torino, Italy

J. Tribol 124(4), 716-724 (Sep 24, 2002) (9 pages) doi:10.1115/1.1472458 History: Received July 31, 2001; Revised February 05, 2002; Online September 24, 2002
Copyright © 2002 by ASME
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References

Figures

Grahic Jump Location
Direct dimensionless stiffness and damping coefficient of self-acting gas journal bearings with Λ=84.3,L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Cross-coupled dimensionless stiffness and damping coefficient of self-acting gas journal bearings with Λ=84.3,L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Direct amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=1.05,L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Cross-coupled amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=1.05, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Direct amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Cross-coupled amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85,khd=1.05 and kLd=1.35 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Direct amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85 and khd=1.05 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Cross-coupled amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2,kh=0.85 and khd=1.05 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Direct amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2 and kh=0.85 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Cross-coupled amplitude and phase frequency characteristics of self-acting gas journal bearings with Λ=5.27, L/D=0.5 and L/D=4,ka=0.4,kθ=0.75,kL=π/2 and kh=0.85 (continuous lines: analytical model, dashed lines: numerical model)
Grahic Jump Location
Attitude angles β of self-acting bearings with ka=0.4 and Δȳ=0.1
Grahic Jump Location
Dimensionless static stiffnesses K̄ of self-acting bearings with ka=0.4 and Δȳ=0.1
Grahic Jump Location
Attitude angles β of self-acting bearings with ka=0.5 and Δȳ=0.1
Grahic Jump Location
Dimensionless static stiffnesses K̄=ΔF̄/Δȳ of self-acting bearings with ka=0.5 and Δȳ=0.1
Grahic Jump Location
Schematic diagram of the center plane of the journal bearing with the coordinate system

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