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TECHNICAL PAPERS

Lateral Deflections of Webs in Air-Flotation Ovens

[+] Author and Article Information
Peter M. Moretti

School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078-5016e-mail: moretti@ceat.okstate.edu

J. Appl. Mech 71(3), 314-320 (Jun 22, 2004) (7 pages) doi:10.1115/1.1756922 History: Received March 12, 2001; Revised November 03, 2003; Online June 22, 2004
Copyright © 2004 by ASME
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References

Shelton, John J., 1968, “Lateral Dynamics of a Moving Web,” Ph.D. thesis, MAE Department, Oklahoma State University, Stillwater, OK, July.
Shelton, J. J., 1992, “Initially Straight Moving Web With a Slack Edge: Steady State Behavior Caused by Roller Nonparallelism Greater Than Critical,” Web Handling–1992, ASME, New York, AMD-Vol. 149 , pp. 51–65.
Young,  G. E., Shelton,  J. J., and Kardamilas,  C., 1989, “Modeling and Control of Multiple Web Spans Using State Estimation,” ASME J. Dyn. Syst., Meas., Control, 111, pp. 505–510.
Shelton, J. J., 1985, “Stability and Control of a Center or End Pivoted Web Guide,” Proc. 4th American Control Engineering Conf., American Automatic Control Council, Green Valley, AZ, pp. 385–387.
Swanson, R. P., 1993, “Air-Support Conveyance of Uniform and Non-Uniform Webs,” Proc. Second International Conference on Web Handling, Stillwater, OK, June 6–9, Oklahoma State University, Stillwater, OK, pp. 1–21.
Young,  G. E., Shelton,  J. J., and Fang,  B., 1989, “Interaction of Web Spans, Parts I and II,” ASME J. Dyn. Syst., Meas., Control, 111, pp. 490–504.
Chang, Y. B., Swanson, R. P., and Moretti, P. M., 1999, “Resiliency of an Air-Floated Web,” Proc. Fifth International Conference on Web Handling, Stillwater, OK, June 6–9, Oklahoma State University, Stillwater, OK, pp. 543–559.
Moretti, P. M., and Chang, Y. B., 1995, “Coupling Between Out-of-Plane Displacements and Lateral Stability of Webs in Air-Support Ovens,” Proc. Third International Conference on Web Handling, Stillwater, OK, June 18–21, Oklahoma State University, Stillwater, OK, pp. 338–347.
Pinnamaraju, R., 1992, “Measurement on Air-Bar/Web Interaction for the Determination of Lateral Stability of a Web in Flotation Ovens,” MS thesis, MAE Department, Oklahoma State University, Stillwater, OK, Dec.
Perdue, D. M., 1993, “Lateral Stability Investigation of Air-Bar and Web Interaction for Use in Flotation Ovens,” MS thesis, MAE Department, Oklahoma State University, Stillwater, OK, Dec.
Nisankararao, S. K. V., 1994, “An Experimental Study of Aerodynamic Forces of Air Bars,” M.S. thesis, MAE Department, Oklahoma State University, Stillwater, OK, May.
Chang, Y. B., and Moretti, P. M., 1995, “Ground-Effect Theory and Its Application to Air-Flotation Devices,” Proc. Third International Conference on Web Handling, Stillwater, OK, June 18–21, Oklahoma State University, Stillwater, OK, pp. 348–365.
Chang, Y. B., and Moretti, P. M., 1997, “Aerodynamic Characteristics of Pressure-Pad Air Bars,” ASME International Mechanical Engineering Congress and Exposition, AD-Vol. 53-2 4th International Symposium on Fluid-Structure Interactions, Aeroelasticity, Flow-Induced Vibration and Noise, ASME, New York, AD-Vol. 53-2 , pp. 3–9.
Chang, Y. B., Swanson, R. P., and Moretti, P. M., 1999, “Longitudinal and Out-of-Plane Stiffness of a Web in an Air-Flotation Oven,” Proc. ASME, Noise Control and Acoustics Division–1999, ASME, New York, NCA-Vol. 26 , pp. 435–443.

Figures

Grahic Jump Location
Nomenclature; the sine wave is drawn with exaggerated amplitude—actual amplitudes are small, and zbar may be negative
Grahic Jump Location
Relationship between web curvature y and pressure distribution p, both shown as functions of x
Grahic Jump Location
Deflection shape, y/L versus x/L, from Eq. (39), the low-elasticity equilibrium solution for a cambered web, for full-width-traction at the exit, with unit camber parameter (Eq. (32))
Grahic Jump Location
Deflection shape from Eq. (41), the low-elasticity equilibrium solution for a cambered web, for partial-slip at the exit roller (dotted line) for a high value of 8 for the tension/beam-parameter (Eq. (43)), compared with full-width-traction at the exit (solid line)
Grahic Jump Location
Deflection shape from Eq. (41), the low-elasticity equilibrium solution for a cambered web, for partial-slip at the exit roller (dotted line) for a low value of 3.7 for the tension/beam-parameter (Eq. (43)), compared with full-width-traction at the exit (solid line)

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