Viscoelastic Effects in Modeling Web Handling Systems: Steady-State Analysis

[+] Author and Article Information
X. Guan, M. S. High, D. A. Tree

School of Chemical Engineering, Oklahoma State University, 423 Engineering North Stillwater, OK 74078

J. Appl. Mech 62(4), 908-914 (Dec 01, 1995) (7 pages) doi:10.1115/1.2896021 History: Received January 05, 1994; Revised July 18, 1994; Online October 30, 2007


The effect of viscoelasticity in web handling systems is examined by introducing a viscoelastic equation of state into a model for tension control. Case studies and generalized results for a single open-span system and a double open-span system are presented to compare the results of the viscoelastic model to a model based on a purely elastic equation of state. The results show only small differences in the tension behavior for the single-span system. However, large differences in the magnitude and reversal of the sign of the tension in the second span of a two-span system are seen for even small degrees of viscoelasticity in the web material. The results clearly demonstrate that viscoelasticity must be considered in modeling multispan web handling systems.

Copyright © 1995 by The American Society of Mechanical Engineers
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