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TECHNICAL PAPERS

Groove Effects on Thrust Washer Lubrication

[+] Author and Article Information
To Him Yu, Farshid Sadeghi

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288

J. Tribol 123(2), 295-304 (Apr 11, 2000) (10 pages) doi:10.1115/1.1308014 History: Received November 24, 1999; Revised April 11, 2000
Copyright © 2001 by ASME
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References

Figures

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Thrust washer lubrication system
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Schematic of thrust washer geometry
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Schematic of various groove profiles
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Dimensionless pad shape. NG=5, radius ratio R̄=0.65, groove depth ratio Δ=1.0, groove width ratio λ=700.0, curvature number Cn=2000.0, and orientation angle β=0 deg.
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Dimensionless pressure profile. NG=5,R̄=0.65,Δ=1.0,λ=700.0,Cn=2000.0,γ=1,000,Re*=0.01, and β=0 deg.
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Cavitation zone. NG=5,R̄=0.65,Δ=1.0,λ=700.0,Cn=2000.0,γ=1000,Re*=0.01, and β=0 deg.
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The transient pressure distributions for various time steps. NG=5,Ri=42.25 mm,Ro=65.0 mm,Gw=25.0 mm,Gd=0.05 mm,t0=0.01 sec, and Fz=600.0 N.
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Variation of film thickness and frictional torque as a function of time. NG=5,Ri=42.25 mm,Ro=65.0 mm,Gw=25.0 mm,Gd=0.05 mm,t0=0.01 sec, and Fz=600.0 N.
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Variation of flow rates as a function of time. NG=5,Ri=42.25 mm,Ro=65.0 mm,Gw=25.0 mm,Gd=0.05 mm,t0=0.01 sec, and Fz=600.0 N.
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Radial velocity component in the midfilm section. NG=5,β=0.0 deg,γ=1000,Re*=0.01,Cn=2000.0,λ=1000,Δ=1.0, and R̄=0.65.
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The side view of tangential velocity. NG=5,β=0.0 deg,γ=1000,Re*=0.01,Cn=2000.0,λ=1000,Δ=1.0, and R̄=0.65.
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Effect of the groove number on the load carrying capacity for different groove width ratios (λ). R̄=0.65,Δ=1.0,Cn=2000.0,γ=1,000,Re*=0.01, and β=0 deg.
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Effect of the groove number on the side volume flow rate for different groove width ratios (λ). R̄=0.65,Δ=1.0,Cn=2000.0,γ=1,000,Re*=0.01, and β=0 deg.
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Effect of the groove number on frictional torque for different groove width ratios (λ). R̄=0.65,Δ=1.0,Cn=2000.0,γ=1,000,Re*=0.01, and β=0 deg.
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Effect of the groove depth on dimensionless load capacity for different NG.R̄=0.65,λ=200.0,Cn=1300.0,γ=4000,Re*=0.0025, and β=0 deg.
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Effect of the groove depth on the side flow rate for different NG.R̄=0.65,λ=200.0,Cn=1300.0,γ=4000,Re*=0.0025, and β=0 deg.
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Effect of the centrifugal effect on side leakage. NG=7,R̄=0.65,λ=200.0,Cn=1300.0,γ=4000,Re*=0.0025, and β=0 deg.
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Effect of the groove depth on frictional torque for different NG.R̄=0.65,λ=200.0,Cn=1300.0,γ=4000,Re*=0.0025, and β=0 deg.
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Effect of the groove profile on load carrying capacity. NG=5,R̄=0.65,Cn=2000.0,λ=1000,γ=1000.0,Re*=0.0, and β=0.0 deg.
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Effect of the groove profile on frictional torque. NG=5,R̄=0.65,Cn=2000.0,λ=1000,γ=1000.0,Re*=0.0, and β=0.0 deg.
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Effect of the washer characteristic number on load capacity for different NG.R̄=0.65,λ=200.0,Δ=0.5,Cn=1300.0,Re*=0.0025, and β=0 deg.
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Effect of the washer characteristic number on frictional torque for different NG.R̄=0.65,λ=200.0,Δ=0.5,Cn=6500.0,Re*=0.001, and β=0 deg.
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Load carrying capacity of different thrust bearings. γ=4000,R̄=0.65,Cn=1300.0,λ=200.0,NG=7, and β=0.0 deg.

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