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Now showing items 301-310 of 429
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 ...
Air support conveyance of uniform and non-uniform webs
(Oklahoma State University, 1993-06)
A web span model and solution technique have been developed to determine the stresses and deflections of uniform and non-uniform webs, subject to side loading from an air support system. Formulas are given to calculate the ...
Dynamic behavior of dancer subsystems in web transport systems
(Oklahoma State University, 1993-06)
A dancer subsystem may be used as a tension measurement or as a disturbance attenuator depending on its design. The design of a dancer subsystem to accomplish a desired result requires the development of a dynamic model ...
Study of three-dimensional nonlinear nip mechanics
(Oklahoma State University, 1993-06)
An understanding of nip pressure and deformed nip geometry is of vital importance to the design of web handling equipment. Axial variations in nip pressure and deformed nip geometry can lead to poor product performance and ...
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 ...
Resiliency of an air-floated web
(Oklahoma State University, 1999-06)
Air-flotation ovens are used for non-contact drying of coated web materials such as photographic film, magnetic media, and paper. In a typical air-flotation oven, the air bars are arranged in such a way that the path of ...
Experimental investigations in winding and unwinding operations
(Oklahoma State University, 1997-06)
The trend in winding in the paper industry can be simply characterized by : wider and faster with more dense webs with a lower level of accepted defects. This is valid for paper production and printing, especially in rotogravure.
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 ...
Model-based control of lateral web behavior - An interconnection of two web guiding systems within packaging machinery
(Oklahoma State University, 2015-06)
Within packaging industry mostly web materials are used to form bags or similar shaped packages. In order to professionally convert these materials and achieving increasing quality requirements of bags, detailed knowledge ...