Browsing OSU - International Conference on Web Handling by Title

Now showing items 1-20 of 429

    • 10 commandments of web machine design 

      Roisum, D. R. (Oklahoma State University, 1995-06)
      This paper describes the most important aspects of roller design, selection and maintenance necessary for a smooth running web process. Included are discussions of alignment, deflection, geometry, surfaces, traction, and ...

    • 2D FSI model for paper webs and fabrics moving close to each other in complex geometries 

      Immonen, Eero; Bergstrom, Fredrik; Nurmi, Simo; Lehtinen, Antti; Juppi, Kari; Martinsson, Lars (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 ...

    • Abilities and inabilities of wound roll models to predict winding defects 

      Good, J. K. (Oklahoma State University, 2005-06)
      Wound roll models began appearing in the literature 40 years ago. These models predict internal stresses within wound rolls due to winder operating conditions and web material properties. The models have progressed much ...

    • Adaptive feedforward based control strategy for attenuation of periodic tension oscillations in roll-to-roll manufacturing 

      Branca, Carlo; Pagilla, Prabhakar R.; Reid, Karl N. (Oklahoma State University, 2013-06)
      Considering the aforementioned issues, an adaptive feedforward (AFF) algorithm that can work in parallel to an existing feedback control systems is developed for control of web tension and to attenuate periodic oscillations. ...

    • Adaptive, self-underpressurizing suction roll for fast web handling concepts 

      Kurki, M.; Martihainen, P. (Oklahoma State University, 2005-06)
      In web handling one of the most demanding area is nip or pocket area for incoming or outgoing web. Depending on speed of web and rotating roll surfaces, boundary layers transport air causing negative or positive relative ...

    • Advanced controls for web handling: Ready for production? 

      Carlson, Dan (Oklahoma State University, 2007-06)
      The science of web handling has numerous control challenges. Longitudinal control is especially challenging because the machine is a distributed, high order, tightly coupled flexible system. Advanced controls were developed ...

    • Advanced process models and control strategies for rotary printing presses 

      Brandenburg, G. (Oklahoma State University, 2011-06)
      Digitally position controlled and synchronized AC motors which have replaced the former mechanical line shaft allow for advanced control strategies of rotary printing presses. New controls require new process models. The ...

    • Advanced surface design of polyester films and its application to magnetic recording media 

      Handa, M. (Oklahoma State University, 1997-06)
      This paper briefly overviews the recent surface design for the purpose of achieving the good wind ability of polyester films and its application to the substrate films for the magnetic recording media.

    • Advanced winding machine development at Sandia National Laboratories 

      Richardson, Charles B. (Oklahoma State University, 1993-06)
      Sandia National Labs, New Mexico is designing and testing an improved version of its state-of-the-art capacitor winding machine. The new CL1610 winding machine is based on the mechanical design of three previous Sandia ...

    • Advantages of inertial roll alignment technology in estimating web handling issues 

      Woo, C. Y. (Oklahoma State University, 2011-06)
      Roll alignment plays a crucial part in eliminating web handling issues in manufacturing processes. Web handling issues due to roll misalignment includes tracking, tension control, uneven material gauge, and in some cases, ...

    • Aerodynamic dancer in web handling 

      Hong, E. Y.; Shelton, J. J.; Chang, Y. B. (Oklahoma State University, 2007-06)
      This paper discusses the aerodynamic dancer that is effective in a wide range of frequency and do not cause excessive lateral web deflection, touching, or flutter. An aerodynamic model of air-turn bar has been developed. ...

    • Aerodynamic forces of a Coanda air jet 

      Hong, E. Y.; Chang, Y. B. (Oklahoma State University, 2003-06)
      This paper discusses the aerodynamic pressure and frictional force on a plate (called web) placed against a plane wall jet of air. The air jet was ejected from a slot nozzle, turned 90 degrees following a curved surface, ...

    • Air entrainment during film winding with layon rolls 

      Forrest, A. W., Jr. (Oklahoma State University, 1995-06)
      Excessive air entrainment has long been recognized as a cause for telescoping and other forms of wound roll defects. To eliminate a portion of the air, exclusion devices such as layon rolls are often used. Air entrainment ...

    • Air entrainment in web handling: To be avoided or mastered? 

      Bourgin, P. (Oklahoma State University, 1997-06)
      The presence of ambient air is of prime importance in various industrial processes involving web handling. This paper is an attempt to answer the following questions: how does air influence the quality of the final product? ...

    • Air entrainment on two sides of a web passing through the nip of two rigid rolls 

      Lee, J.-Y.; Shelton, J. J.; Chang, Y. B. (Oklahoma State University, 2001-06)
      When web materials (paper, plastic films, or metal foils) are wound into rolls, excessive amounts of air can be entrapped between layers of the web, resulting in defective rolls. Entrapped air layer between a coated film ...

    • Air entrapment and residual stresses in rolls wound with a rider roll 

      Good, J. K.; Covell, S. M. (Oklahoma State University, 1995-06)
      Air is entrained during the process of winding webs. Rider rolls are often employed in an effort to reduce the amount of air which enters the wound roll. This paper presents the results of an experiment which allows the ...

    • Air films between a moving tensioned web and a stationary support cylinder 

      King, S. L.; Funk, B. A.; Chambers, F. W. (Oklahoma State University, 1993-06)
      Web quality and web processing efficiency depend upon maintaining a proper lubricating air film between the moving web and the driving and supporting rollers. As web line speeds are increased, the film can become too thick, ...

    • Air support conveyance of uniform and non-uniform webs 

      Swanson, Ronald P. (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 ...

    • Analysis of the kinematic and dynamic process during winding based on a systematology of models for winding mechanics 

      Welp, E. G.; Guldenburg, B. (Oklahoma State University, 1997-06)
      The winding process of web materials with low bending resistance is composed of several partial processes whose single effects are influenced by specific machine, process and material parameters. The interaction of these ...

    • Analysis of trough formation and lateral steering of a web due to a tapered downstream roller 

      Beisel, J. A.; Good, J. K. (Oklahoma State University, 2005-06)
      Cylindrical rollers are never perfectly cylindrical. A common defect of a cylindrical roller is radial taper. A roller with a radial taper will induce a lateral shear force into the web. This shear force will cause a ...