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Now showing items 91-100 of 153
Installation and performance of classical web guides
(Oklahoma State University, 2003-06)
This paper depicts proper installations of conventional web guides and examines the theory of web mechanics and the theory of automatic control as foundations for the practice of web guiding. Conditions which would damage ...
Detection and characterization of web vibrations by artificial vision
(Oklahoma State University, 2003-06)
In this paper, we address the problem of the detection of transverse web vibrations by means of a digital camera and a laser dots pattern device. For this purpose, we briefly present some video processings which yield an ...
Future online concept for roll and sheet production in papermaking technology and process requirements for web handling
(Oklahoma State University, 2003-06)
The process of on-line converting is discussed as a chance to increase the productivity and quality in roll and sheet converting in paper mills. In this article the technical and process related prospects will be presented ...
Process direction dynamic model for high precision web/belt transport systems
(Oklahoma State University, 2009-06)
This article proposes a process direction dynamic model for closed loop belts and open loop webs used in high precision transport systems such as those found in printers where micron level registration is required. It gives ...
Role of active dancers in tension control of webs
(Oklahoma State University, 2001-06)
This paper investigates the role of active dancers in attenuation of web tension disturbances in a web process line. A general structure of the active dancer is considered; an input/output model is developed for analysis ...
Wound roll generated unstable vibration
(Oklahoma State University, 2003-06)
Nip contact between the wound roll and the winding drum, rider roll or some other nip roller may cause that the wound roll is deformed into a convex polygon. This deformation process is accompanied with a very strong ...
Considerations in the selection of a dancer or load cell based tension regulation strategy
(Oklahoma State University, 2001-06)
Two methods are predominantly used to control tension in web lines: a position regulated dancer roller strategy or a regulator based on tension feedback from a load cell. Dancers are most typically used on the unwind or ...
In-roll stress analysis of wound roll with the air entrainment and the permeation
(Oklahoma State University, 2001-06)
The quality of a wound roll is highly dependent upon the in-roll stress distribution, which is controlled by the operating parameters of center torque, nip and tension. With increasing demands for higher performance of ...
Ultrasonic based multiple web sensing for lateral control application
(Oklahoma State University, 2009-06)
As sensing requirements in guiding applications increase in complexity, innovation must increase to meets these needs. In applications with multiple webs, space restrictions often limit the placement of sensors. In this ...
Impact of mandrel support on core Ec
(Oklahoma State University, 2001-06)
Over the past 15 years, Sonoco has conducted solid mechanics research focused on structural behavior of spirally wound, paper tubes. The scope of this program has included experimental, numerical, and analytical mechanics ...