Browsing OSU - International Conference on Web Handling by Author "7afe4f42-88aa-4dee-926c-203213110802"

Now showing items 1-5 of 5

    • Differentially driven S-wrap rolls for improved tension isolation 

      Forrest, A. W., Jr.; Bennett, A. N.; Jones, M. R. (Oklahoma State University, 1997-06)
      Achieving adequate tension isolation is necessary in both the manufacture and subsequent processing of webs of all types. Several techniques currently are available including nips, vacuum rolls, driven rolls and S-wraps. ...

    • Film surface considerations for enhanced winding of thin films 

      Forrest, A. W., Jr.; Anderson, V. L. (Oklahoma State University, 1997-06)
      The primary defect for thin films ( < 25μm ) consists of sinusoidal ridges that run around the wound roll of film. Previous work has shown that these defects are buckles caused by compressive stresses in the transverse ...

    • Fully nonlinear solution to the stresses inside wound rolls 

      Forrest, A. W., Jr. (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 ...

    • Lateral response and control of a multi-span web system to dynamic changes to the web and conveyance hardware 

      Forrest, A. W., Jr. (Oklahoma State University, 2001-06)
      A multi-span model that predicts the lateral response of webs to changes in the upstream position of the web and any type of motion of the included rolls is presented. The model uses a beam approximation for the deflection ...

    • Optimization of equipment and process conditions for film winding 

      Forrest, A. W., Jr. (Oklahoma State University, 1999-06)
      Mathematical modeling of film winding has progressed to a point where it can offer much insight into the mechanics of this process. However, experience and testing on the actual hardware are still necessary to maximize ...