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TECHNICAL PAPERS

Improvement of Web Spacing and Friction Characteristics by Two Types of Stationary Guides

[+] Author and Article Information
Hiromu Hashimoto

Department of Mechanical Engineering, School of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259-1292, Japan

Haruyasu Nakagawa

Graduate School of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259-1292, Japan

J. Tribol 123(3), 509-516 (Jul 06, 2000) (8 pages) doi:10.1115/1.1308033 History: Received February 23, 2000; Revised July 06, 2000
Copyright © 2001 by ASME
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References

Hashimoto,  H., 1999, “Air Film Thickness Estimation in Web Handling Processes,” ASME J. Tribol., 121, No. 1, pp. 50–55.
Hashimoto,  H., 1995, “Theoretical Analysis of Externally Pressurized Porous Foil Bearings—Part I: In the Case of Smooth Surface Porous Shaft,” ASME J. Tribol., 117, No. 1, pp. 103–111.
Wildmann,  M., and Wright,  A., 1965, “The Effect of External Pressurization on Self-Acting Foil Bearings,” ASME J. Basic Eng., 87, pp. 631–640.
Barlow,  E. J., and Wildmann,  M., 1968, “The Axisymmetric, Perfectly Flexible Foil Bearings with Porous Inlet Restrictor,” ASME J. Lubr. Technol., 90, No. 1, pp. 145–152.
Baumann,  G. W., 1971, “Analysis of a Porous Gas Foil Bearing,” ASME J. Lubr. Technol., 93, No. 3, pp. 456–464.
Yabe,  H., Mori,  H., Nakayama,  S., and Tone,  M., 1979, “A Study on Externally Pressurized Gas-Lubricated Foil Bearing with Porous Shaft (1st Report)—Bearing Performance with No Relative Foil Velocity,” Journal of JSLE, 24, No. 3, pp. 154–159 (in Japanese).
Yabe,  H., Mori,  H., Nakayama,  S., and Tone,  M., 1979, “A Study on Externally Pressurized Gas-Lubricated Foil Bearing with Porous Shaft (2nd Report)—Hybrid Bearing Performance with a Small Foil Velocity,” Journal of JSLE, 24, No. 3, pp. 160–165 (in Japanese).
Yabe,  H., Mori,  H., and Tone,  M., 1980, “A Study on Externally Pressurized Gas-Lubricated Foil Bearing with Porous Shaft (3rd Report)—Hybrid Bearing Performance with Predominant Hydrodynamic Effect,” Journal of JSLE, 25, No. 1, pp. 47–54 (in Japanese).
Hashimoto,  H., 1997, “Effect of Foil Bending Rigidity on Spacing Height Characteristics of Hydrostatic Porous Foil Bearings for Web Handling Processes,” ASME J. Tribol., 119, No. 3, pp. 422–427.
Mizoh,  Y., Yohda,  H., Kotera,  H., Kita,  H., and Kaminaka,  N., 1993, “Finite Element Analysis of Tape Floating Behavior on a Magnetic Head and Grooved Drum in a Video Cassette Recorder,” Adv. Info. Storage Syst., 5, pp. 481–492.
Mizoh, Y., Yohda, H., Kaminaka, N. Kotera, and Kita, H., 1992, “Analysis of Tape Floating Behavior on Magnetic Head and Grooved Drum in VCR,” Industrial and Environmental Applications of Fluid Mechanics, S. A. Sherif, T. B. Morrow, K. Horii, and L. R. Marshall, eds., FED-Vol. 145, ASME Book No. G00776-1992, pp. 151–156.
Rongen, P., 1994, “Finite Element Analysis of Tape Scanner Interface in Helical Scan Recording,” Ph.D. Thesis, Technische Universiteit Eindhoven, ISBN 90-74445-15-2.
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Patir,  N., and Cheng,  H. S., 1978, “Application of Average Flow Model for Determining Effects of Three-Dimensional Roughness of Partial Hydrodynamic Lubrication,” ASME J. Lubr. Technol., 100, No. 1, pp. 12–17.
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Müftü,  S., and Cole,  K. A., 1999, “The Fluid/Structure Interaction of a Thin Flexible Cylindrical Web Supported by an Air Cushion,” J. Fluids Struct., 13, pp. 681–708.
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Figures

Grahic Jump Location
Relation between friction coefficient and web spacing for R=0.035 m,L=0.05 m, σ=1.5 μm, hg=200 μm,bg=400 μm, and 2B=66 deg
Grahic Jump Location
Relation between web spacing and velocity for R=0.035 m,L=0.05 m, σ=1.5 μm, hg=200 μm,bg=400 μm, and 2B=66 deg
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Variation of friction coefficient with web spacing for R=0.0369 m,T=66.7 N,tf=35.6 μm,2B≅90 deg
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Variation of web spacing with tension for triangular grooved guide
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Variation of web spacing with velocity for triangular grooved guide
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Variation of web spacing with tension for hollow porous guide
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Variation of web spacing with velocity for hollow porous guide
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Variation of web spacing with supply pressure for hollow porous guide
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Variation of web spacing with tension for flat surface guide
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Variation of web spacing with velocity for flat surface guide
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Concept of equivalent web spacing for circumferentially grooved guide
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Foil bearing model for hollow porous guide
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Foil bearing model for flat surface guide
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Example of web transporting system

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