Now showing items 1-11 of 11

    • 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. ...
    • 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 ...
    • Applying hundreds of years of scientific and engineering knowledge in 50 years of time 

      Shelton, J. J. (Oklahoma State University, 2007-06)
      Aspects of lateral behavior discussed in this paper include (1) the concept of a web span as a tensioned beam, analyzed for large ratios of L/W, small ratios, and general ratios, and (2) static interaction of two spans and ...
    • Deflection and critical velocity of rollers 

      Shelton, J. J. (Oklahoma State University, 1995-06)
      A coordinate system with its origin at the center of the roller, and with the origin moving as the roller deflects, is used for solution of the fourth order differential equation of beam mechanics. The result is a continuous ...
    • Dynamics of a web accumulator 

      Shelton, J. J. (Oklahoma State University, 1999-06)
      A conventional accumulator with no driven rollers and all rollers identical is studied for avoidance of excessive tension, slackness and slippage on the rollers. The total force imposed by the web spans on the carriage is ...
    • Effects of web camber on handling 

      Shelton, J. J. (Oklahoma State University, 1997-06)
      The definition of camber and a laboratory method of measurement of camber are presented. Common problems caused by camber and methods for avoidance of these problems are discussed.
    • Installation and performance of classical web guides 

      Shelton, J. J. (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 ...
    • Interaction between two web spans because of a misaligned downstream roller 

      Shelton, J. J. (Oklahoma State University, 2005-06)
      Fourth order differential equations for two web spans are solved, with the required eight boundary conditions reflecting conditions at the upstream end of the first span, the downstream end of the second span (at the ...
    • Limitations to sensing of web tension by means of roller reaction forces 

      Shelton, J. J. (Oklahoma State University, 1999-06)
      Classical frequency response analysis of a dancer or a roller mounted on load cells reveals that such devices are severely limited in their ability to sense the dynamic tension in a web. The response of a tension control ...
    • Shear wrinkling in isolated spans 

      Good, J. K.; Kedl, D. M.; Shelton, J. J. (Oklahoma State University, 1997-06)
      Web wrinkling is a problem which plagues the web process industry. Most webs are quite thin, on the order of 4-150 μm, and become subject to lateral shear during transport either by misaligned rollers or by guide rolls. ...
    • Simplified model for lateral behavior of short web spans 

      Shelton, J. J. (Oklahoma State University, 2001-06)
      For ratios of L/W less than approximately 2.0, the effects of shear stresses on the shape of a web must be considered. In basic manufacturing and processing of webs, such ratios are very common. The analysis of a general ...