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Experimental study of idler roll slippage
(Oklahoma State University, 1999-06)
Idler roll slippage occurs when the roll surface velocity no longer equals the velocity of the web that transports the roll. In a web transport system, slippage will produce scratches in sensitive, coated web or cause ...
Compressive modulus measurement techniques
(Oklahoma State University, 1999-06)
The compression testing of stacks of sheet materials is done to learn the behavior of the group of sheets, a behavior that is quite different from that of a solid, or even one single thick sheet of the same material. Many ...
Mechanics of a cylindrical flexible web floating over an air-reverser
(Oklahoma State University, 1999-06)
The mechanics of the fluid/structure interaction between a thin flexible web, wrapped around a cylindrical drum (reverser), and the air cushion formed by external pressurization through the holes of this drum is analyzed. ...
Experimental and theoretical study of web traction over a nonvented roller
(Oklahoma State University, 1999-06)
The traction developed between a thin flexible web, wrapped around a nonvented, rotating cylindrical roller is studied experimentally and theoretically. A series of eight webs representing a wide range of surface roughness ...
Revised Sievers lateral dynamics model
(Oklahoma State University, 1999-06)
Comparison of center and surface winding using the wound-in-tension method
(Oklahoma State University, 1999-06)
Pfeiffer first defined the wound-in-tension measurement in 1968[1]. This technique requires the outer layer of web to be pulled away from a winding roll and a measure of the web tension is made prior to returning the web ...
Performance of paper tubes
(Oklahoma State University, 1999-06)
The tube performance requirements critical to a manufacturer's needs are dependent on such parameters as the manufacturer's processes, winding media, packaging, and equipment. Two important strength requirements for paper ...
Fully nonlinear solution to the stresses inside wound rolls
(Oklahoma State University, 1999-06)
The Hakiel approach has been the accepted method for calculating stresses in wound rolls. It determines the stress in rolls by summing the stress induced by wraps of film applied to the roll surface. This approach is called ...
Linear edge sensor
(Oklahoma State University, 1999-06)
In modern industrial process controls, web guiding is becoming very demanding due to variations in web materials, variable web widths, and the need for better guiding accuracy. Selecting the appropriate sensor for various ...
Improvement of web spacing characteristics by two types of guide rollers
(Oklahoma State University, 1999-06)
In the manufacturing fields of plastic sheet, paper, magnetic tape, thin metal plate, photographic film etc., the web transporting systems supported by guide rollers are often used. In such systems, it is of cardinal ...