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Now showing items 31-40 of 150
On the dynamics of web transfer in an open draw
(Oklahoma State University, 1993-06)
A paper web running in an open draw of a high speed paper machine is subjected to various internal and external forces which stretch it and which can ultimately rupture it. The forces arise from speed differences between ...
Air films between a moving tensioned web and a stationary support cylinder
(Oklahoma State University, 1993-06)
Web quality and web processing efficiency depend upon maintaining a proper lubricating air film between the moving web and the driving and supporting rollers. As web line speeds are increased, the film can become too thick, ...
Measurement and prediction of the centering effect of a profiled roll on steel strips
(Oklahoma State University, 1999-06)
In a steel continuous processing line, the strip passes over an important number of rolls and strip walking can occur due to strip defects, roll profile or roll misalignment. Since decades, two solutions are used in order ...
From predictive models to profitability in the web-handling industry
(Oklahoma State University, 1995-06)
This paper attempts to put some of the work being done by researchers in the web-handling field, including some of the papers to be presented at this conference, into a broader business context. Various ways of utilizing ...
Non-interacting tension control in a multi-span web transport system
(Oklahoma State University, 1995-06)
A non-interacting tension control algorithm is proposed to reject the disturbance due to the interaction between neighboring processing sections. An 'auxiliary dynamic model' is derived. And an 'auxiliary controller' is ...
Quantitative analysis of nip-induced tension by use of digital image processing
(Oklahoma State University, 1999-06)
Winding paper in contact with a drum leads to the production of nip-induced tension which, to a high degree, influences the structure of the roll. Thus, comprehending the processes in the nip, including each parameter ...
Edge flutter in webs
(Oklahoma State University, 1991-05)
A persistent problem in paper machines and other webs subjected to drying air flows is edge flutter. The resulting stresses can damage the edges, initiate tears and breaks in paper machines, or spoil coatings near the edges ...
Dynamics of a web accumulator
(Oklahoma State University, 1999-06)
A conventional accumulator with no driven rollers and all rollers identical is studied for avoidance of excessive tension, slackness and slippage on the rollers. The total force imposed by the web spans on the carriage is ...
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 ...
Analysis of the kinematic and dynamic process during winding based on a systematology of models for winding mechanics
(Oklahoma State University, 1997-06)
The winding process of web materials with low bending resistance is composed of several partial processes whose single effects are influenced by specific machine, process and material parameters. The interaction of these ...