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Now showing items 141-150 of 153
Updated model for lateral displacement of nonuniform webs
(Oklahoma State University, 2009-06)
The theory for lateral mechanics of nonuniform webs in the open literature is believed to be flawed and an updated theory is presented. The theory is based on beam theory and a set of boundary conditions. The so-called ...
Real time dynamic simulation of a paper winder
(Oklahoma State University, 2003-06)
Typically, large portions of the winder control system software are tested during the commissioning process. This is inefficient since production is shut down and financial pressures limit the time available for testing. ...
Traction in web handling: A review
(Oklahoma State University, 2001-06)
In web processes, at least one moving machine component must drive the material through a friction force at the interface. This force, or traction, inevitably falls as speed increases, and is accompanied by a degree of ...
Traction force between rotating roll and moving web considering the effect of air-entrainment and friction
(Oklahoma State University, 2003-06)
High-speed transportation of paper web sometimes leads the web handling system into unstable state because of increase in the air-entrainment into the gap between a rotating roll and moving web or the nip region of winding system.
Development of web tension in a winding nip
(Oklahoma State University, 2001-06)
Today practically all winding devices apply a nip to the wound roll. In this winding method, radial pressure is applied by a winding drum to the wound roll at the point where the web enters the roll. This reduces the air ...
Optimized slitting parameters for the shear slitting of paper
(Oklahoma State University, 2003-06)
Due to the demand for an increasing quality of cutted or slitted products and the requirement of rising productivity in the slitting process, the optimization of mechanical slitting is gaining in importance for the converting ...
Roll design effect on nip pressure
(Oklahoma State University, 2005-06)
The quality of reeling process is a key factor in achieving production efficiency, especially when machine speed and paper width continue to increase. For calendered and coated grades of paper the main problems are the ...
Strip tension control considering the thermal strain in multi-span systems with temperature change
(Oklahoma State University, 2001-06)
The mathematical model for tension behaviors of a moving web by Shin [1] is extended to the tension model considering the thermal strain due to temperature variation in furnace. The extended model includes the terms that ...
2D FSI model for paper webs and fabrics moving close to each other in complex geometries
(Oklahoma State University, 2009-06)
In the present article we develop a two-dimensional computational fluid-structure interaction (FSI) model for small transverse deflections of a moving paper web, supported on one side by a fabric, both moving in an arbitrary ...
Web handling technologies, past, present and future
(Oklahoma State University, 2001-06)
This paper gives a brief description of the evolution of technical knowledge. The evolution of beam theory is given as an example from the field of strength of materials. Technical knowledge starts with information gained ...