Browsing Proceedings of the International Conference on Web Handling by Author "8b08a378-01bb-4249-aae3-44ef4895ad71"

Now showing items 1-7 of 7

    • 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 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 ...

    • Coupling between out-of-plane displacement and lateral stability of webs in air-support ovens 

      Moretti, P. M.; Chang, Y. B. (Oklahoma State University, 1995-06)
      In drying ovens where the web zig-zags over and under air-support bars, the web sometimes drifts to one side or the other until it runs into the oven wall. This divergence is shown to be coupled to out-of-plane displacements ...

    • Ground-effect theory and its application to air flotation devices 

      Chang, Y. B.; Moretti, P. M. (Oklahoma State University, 1995-06)
      The ground-effect theories, originally developed for air cushion vehicles (or ground-effect machines), are re-examined and compared with the air bar test results. The geometries of the tested air bars are different from ...

    • Resiliency of an air-floated web 

      Chang, Y. B.; Swanson, R. P.; Moretti, P. M. (Oklahoma State University, 1999-06)
      Air-flotation ovens are used for non-contact drying of coated web materials such as photographic film, magnetic media, and paper. In a typical air-flotation oven, the air bars are arranged in such a way that the path of ...

    • Web flutter at circular-tube air-turn bars 

      Moretti, P. M.; Chang, Y. B. (Oklahoma State University, 1997-06)
      Circular tubes having air-emitting holes are often used for non-contact handling of photographic and magnetic media and for printed paper webs. One of the problems of circular-tube air-turn bars is their tendency to cause ...