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Prediction model of paper-web wrinkling and some numerical calculation examples with experimental verifications
(Oklahoma State University, 2005-06)
In the web handling technology, it is very important engineering problems to predict and protect web wrinkling from several view points of product quality, manufacturing cost and so on. In this paper, the prediction model ...
Complete material law of paper for modelling and simulation of finishing processes
(Oklahoma State University, 2005-06)
A complete three-dimensional material law is necessary for the mathematical description of the material behaviour and for the simulation and calculation of finishing or converting processes. In order to achieve this goal, ...
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 ...
Recent advances in web longitudinal control
(Oklahoma State University, 2005-06)
Stable web transport through processing machinery is critical in the web processing industry. Demands for improved performance under a wide variety of dynamic conditions and web materials are placing additional emphasis ...
Interaction between two web spans because of a misaligned downstream roller
(Oklahoma State University, 2005-06)
Fourth order differential equations for two web spans are solved, with the required eight boundary conditions reflecting conditions at the upstream end of the first span, the downstream end of the second span (at the ...
Effect of compliance and backlash on the output speed of a transmission system
(Oklahoma State University, 2005-06)
Backlash is one of the most commonly encountered nonlinearities in drive systems employing gears or ball-screws and indicates the play between adjacent movable parts. Presence of backlash causes delays and oscillations and ...
Influence of the gap throttle effect on the winding process and roll quality
(Oklahoma State University, 2005-06)
In the paper industry the winding technology has a significant influence on the quality of finished rolls. The rising productivity and quality efforts require a constant optimization of the winding process concerning the ...
Modeling the behavior of the paper web in printing presses
(Oklahoma State University, 2005-06)
The production efficiency of printing presses is limited by runnability problems such as web breaks, register errors, wrinkling and lateral instability of the paper web. To explore these phenomena, one must study the ...
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 ...
Optimization by integrating engineering and business models
(Oklahoma State University, 2005-06)
To optimize is to find the "'best" solution given certain conditions and constraints. What is meant by best and how to find it has received scant attention. To the engineer, "best" may be fastest, strongest, most reliable ...