Search
Now showing items 411-420 of 429
Deflection and critical velocity of rollers
(Oklahoma State University, 1995-06)
A coordinate system with its origin at the center of the roller, and with the origin moving as the roller deflects, is used for solution of the fourth order differential equation of beam mechanics. The result is a continuous ...
Unified model for longitudinal and lateral web dynamics
(Oklahoma State University, 2019-06)
In "The Effect of Mass Transfer on Multi-Span Lateral Dynamics of Uniform Webs" [1], it is shown that behavior of Shelton's lateral dynamic beam model [2] can be explained as the interaction of the normal entry equation ...
Factors that control run-ahead on printing presses
(Oklahoma State University, 1999-06)
Run-ahead is a problem that occurs on printing presses where the paper rolls are braked by metallic bands applied to their periphery. Run-ahead occurs when the web in contact with the band decelerates faster than the roll, ...
Flutter mechanism of sheet
(Oklahoma State University, 1991-05)
Basic study has been conducted on sheet flutter which becomes an obstacle to the operation of printing machines and paper making machines in higher speed. Following three topics are presented in this paper.
Nip impinged center-winding including a nonlinear beam model
(Oklahoma State University, 2017-06)
Nip pressure is commonly applied in winding processes in order to maintain structural stability and prevent air entrainment at high speeds. In nip induced winding modeling nip and roll are assumed to be beams with ...
Determining the amount of sheets in a stack of paper by using a pressure stamp
(Oklahoma State University, 2011-06)
The paper will investigate the quality of an easy measuring procedure for determining the amount of sheets in a stack of paper.
Thinking thin?
(Oklahoma State University, 2003-06)
Markets drive us to ever thinner webs to reduce material costs and waste going to the landfill. The challenges for running a lighter basis weight or thinner caliper are at least as difficult for web handling as they are ...
Coupling of winding models and roll quality instruments
(Oklahoma State University, 2015-06)
Winding models have been under development for roughly 50 years. These models have become mature in their ability to predict the internal residual stresses within a wound roll as a function of winder type, winder operating ...
Multi-stage tensile straining during drying of SC paper
(Oklahoma State University, 2011-06)
During multi-cylinder drying on a paper machine, the paper web is under stress in the machine direction, whereas the cross direction is more or less free. The web shrinks due to drying and contracts due to web draws. The ...
Layer-to-layer slippage within paper rolls during winding
(Oklahoma State University, 1997-06)
Crepe wrinkles are created during reeling and winding of paper rolls against a rolling drum. These defects are associated with interlayer movement of paper within the body of the roll. To study this movement, rolls made ...