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Comparison of center and surface winding using the wound-in-tension method
(Oklahoma State University, 1999-06)
Pfeiffer first defined the wound-in-tension measurement in 1968[1]. This technique requires the outer layer of web to be pulled away from a winding roll and a measure of the web tension is made prior to returning the web ...
Analysis of trough formation and lateral steering of a web due to a tapered downstream roller
(Oklahoma State University, 2005-06)
Cylindrical rollers are never perfectly cylindrical. A common defect of a cylindrical roller is radial taper. A roller with a radial taper will induce a lateral shear force into the web. This shear force will cause a ...
Explicit analysis of the lateral mechanics of webs transiting concave rollers
(Oklahoma State University, 2011-06)
All previous analyses of webs encountering spreading devices have required enforcement of assumed boundary conditions. An example is the normal entry boundary condition which has been employed in many web/roller analyses. ...
Modeling rubber covered nip rollers in web lines
(Oklahoma State University, 2001-06)
Rubber covered nip rollers have a number of applications within web lines. Rubber covered rollers are often used to nip the web against a metal surfaced roller that is driven to achieve a certain web velocity or web tension. ...
Pseudo 3D viscoelastic winding model
(Oklahoma State University, 2007-06)
A pseudo 3D winding model that has considered orthotropic viscoelastic effects during winding and storage has been developed and implemented in a code revised from the 2D viscoelastic winding code developed by Qualls and ...
Shear in multispan web systems
(Oklahoma State University, 1997-06)
Wrinkling research has been concentrated in past years on understanding web wrinkling in isolated spans in web lines [1]. It is expected that some of the fundamentals which govern single span behavior will also apply to ...
Tension allocation in three dimensional wound roll
(Oklahoma State University, 2005-06)
Much consideration has been given to the relationship between web line tension and the stresses they induce in three dimensional wound rolls. Three dimensional wound rolls are distinctive because their radial and circumferential ...
Explicit analysis of the lateral mechanics of web spans
(Oklahoma State University, 2011-06)
All previous analyses of webs being steered through process equipment have required enforcement of assumed boundary conditions. An example is the normal entry boundary condition which has been employed in many web/roller analyses.
Large deformation winding models
(Oklahoma State University, 2009-06)
Almost all winding models incorporate the assumption of small linear deformations and strain in development. As such these models treat the addition of a layer of web to a winding roll with linear analysis using linear ...
Using FSRs to measure radial pressure in wound rolls
(Oklahoma State University, 1991-05)
The Force Sensing Resistor (FSRTM)1 is a device which changes resistance in a predictable manner with the application of force on its surface.[1] The FSR has been used in a variety of applications since its invention in ...