A Numerical Algorithm for Determining the Traction Between a Web and a Circumferentially Grooved Roller

[+] Author and Article Information
K. S. Ducotey, J. K. Good

Web Handling Research Center, Dept. of Mechanical & Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078

J. Tribol 122(3), 578-584 (Feb 08, 2000) (7 pages) doi:10.1115/1.555404 History: Received September 16, 1999; Revised February 08, 2000
Copyright © 2000 by ASME
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Schematic of web and roller configuration. Roller is shown with circumferential grooves
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Variable mesh used in discretizing PDEs
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Numerical algorithm flowchart
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Side view of experimental apparatus  
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Cross-sectional view of web deflection at θ=10 deg
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Air pressure between the web and roller
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Asperity contact pressure
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Comparison between theory and experimental results. The curves for the 135 deg and 180 deg wrap angles are overlapped.
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Effect of roller surface roughness and groove pitch on traction
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Effect of web or roller permeability on traction
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Effect of groove depth and groove pitch on traction
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Close-up top view of brake, torque sensor, and optical encoder




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