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Now showing items 111-120 of 153
Modeling of laminated webs
(Oklahoma State University, 2007-06)
A dynamic model of the longitudinal behavior of a laminated web is developed. A single web model that takes into account both thermal and hygral strains is developed first from first principles; the model assumes heat ...
Modeling grooved rolls with moving 2D porous media
(Oklahoma State University, 2009-06)
Rolls are widely used in paper machines to heat, press and support paper webs and fabrics in order to facilitate rapid drying and transport of the paper web through the machine. In modern high speed paper machines, however, ...
Mechanistic survey of accumulating, resonant, and self-exciting systems in web handling
(Oklahoma State University, 2009-06)
Certain problems in web handling can be challenging because they tend to get worse with time. Consider mechanical resonance. The longer you run at resonant vibration conditions, the worse the problem will initially get. ...
Comparative study on active and passive dancers used for attenuation of web tension disturbances
(Oklahoma State University, 2003-06)
A dancer mechanism, used in most of the web process lines, consists of a roller which is either connected to a fixed support by passive elements such as springs and dampers or is force loaded in opposition to the web ...
Effects of concave rollers, curved-axis rollers and web camber on the deformation and translation of a moving web
(Oklahoma State University, 2005-06)
A new method of analysis is applied to three problems that have resisted detailed solution. These are:
Modeling the tension of the paper web
(Oklahoma State University, 2001-06)
The tension distribution of a paper web in a paper machine is typically uneven and the edges of the web are normally slacker than the middle areas. This contributes to many problems not only in the paper making process but ...
Twenty major developments in seven years - Thinking outside the box at the Beloit Downingtown Research Lab
(Oklahoma State University, 2005-06)
The Bi-Wind and the Rho-Meter hardness tester are two well-known achievements of the Beloit Corporation's Downingtown Research Lab and there were many more in the period 1964 to 1971. A small group of researchers, building ...
Lateral deflections of webs in air-flotation ovens
(Oklahoma State University, 2001-06)
A long web span supported by many, regularly spaced, alternating air-bars is studied. The focus is on the lateral forces on the web due to the interaction of lateral curvature with out-of-plane deflections. The effect of ...
Intelligent roll platform for better runnability
(Oklahoma State University, 2009-06)
An intelligent roll is a mechatronic system consisting of a roll in a web handling machine that is also used as a transducer for sensing cross machine tension or linear load. The intelligent roll has electret film force ...
Wound-on-tension for two drum winders
(Oklahoma State University, 2003-06)
The two drum winder remains to be a high productivity winder for rewinding some paper and nonwoven webs at very high speeds. Winding models of varied capabilities exist for center winders, center winders with rider rollers, ...