Web traction over rollers is known to deteriorate due to air entrainment at high web speeds. In this paper, a general model is presented to predict the traction capability of an impermeable web over a smooth roller. The model considers the effects of the web and roller speeds, roller radius, combined roughness of the two surfaces, web tension and thickness, friction coefficient, and compressible air bearing. The change of tension ΔN due to mechanical slip between the roller and the web is calculated by a simultaneous solution of the in-plane and out-of-plane equilibrium of the web and the compressible Reynolds lubrication equation. The problem is nondimensionalized and the effects of nine of the eleven nondimensional parameters on traction are investigated for a range of values. Formulas involving the nondimensional parameters for the traction capability are presented in two-variable polynomial forms.
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January 2004
Technical Papers
Traction Between a Web and a Smooth Roller
Sinan Mu¨ftu¨, Associate Professor, Mem. ASME,
Sinan Mu¨ftu¨, Associate Professor, Mem. ASME
Northeastern University, Department of Mechanical Engineering, Boston, MA 02115
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John J. Jagodnik, Graduate Student
John J. Jagodnik, Graduate Student
Northeastern University, Department of Mechanical Engineering, Boston, MA 02115
Search for other works by this author on:
Sinan Mu¨ftu¨, Associate Professor, Mem. ASME
Northeastern University, Department of Mechanical Engineering, Boston, MA 02115
John J. Jagodnik, Graduate Student
Northeastern University, Department of Mechanical Engineering, Boston, MA 02115
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division July 16, 2002 revised manuscript received May 13, 2003. Associate Editor: C.-P. R. Ku.
J. Tribol. Jan 2004, 126(1): 177-184 (8 pages)
Published Online: January 13, 2004
Article history
Received:
July 16, 2002
Revised:
May 13, 2003
Online:
January 13, 2004
Citation
Mu¨ftu¨, S., and Jagodnik, J. J. (January 13, 2004). "Traction Between a Web and a Smooth Roller ." ASME. J. Tribol. January 2004; 126(1): 177–184. https://doi.org/10.1115/1.1631014
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