Now showing items 21-31 of 31

    • Predicting web wrinkles on rollers 

      Good, J. K.; Beisel, J. A.; Yurtcu, H. (Oklahoma State University, 2009-06)
      There are two levels of web instability in web lines. The first level of web instability is called web troughs. Web troughs are due to the instability of webs that occur in free web spans. Web troughs have been shown to ...
    • Prevention of wound roll defect of coated web 

      Kanda, T.; Akemine, S.; Hashimoto, H. (Oklahoma State University, 2009-06)
      The web which is coated with a coating agent on the surface to add a function is called coated web. This coated web is often made into wound roll to ease handling and storage after coating, and then it is passed to next ...
    • Process direction dynamic model for high precision web/belt transport systems 

      Yang, Ming (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 ...
    • Static and dynamic properties of CFRP rollers 

      von Hulsen, Ulrich (Oklahoma State University, 2009-06)
      Carbon fiber rollers combine high axial stiffness with low weight. This leads to higher bending frequencies and increased critical speed and makes them suitable for high speed machines as web guide rollers or as other ...
    • Taxonomy of wrinkles 

      Walker, Timothy J. (Oklahoma State University, 2009-06)
      Taxonomy is the practice and science of classification. Without taxonomy, everything is lumped into one pot and confusion prevails. All wrinkled or buckled webs should not be filed under one category. Just as birds are ...
    • Transient 2D paper web drying model based on CFD 

      Lehtinen, Antti; Bergstrom, Fredrik; Immonen, Eero; Nurmi, Simo; Martinsson, Lars; Ingvarsson, David; Juppi, Kari (Oklahoma State University, 2009-06)
      In the present article, a model combining the benefits of the small scale and large scale approaches towards modeling paper drying in a paper machine dryer section environment is described. The model is transient and ...
    • Two-dimensional behavior of a thin web on a roller 

      Brown, Jerry (Oklahoma State University, 2009-06)
      A web on a roller is usually modeled as a one-dimensional belt in a state of pure circumferential stress. However, most of the important problems in lateral web behavior involve shear stress and cross web stress. Furthermore, ...
    • Ultrasonic based multiple web sensing for lateral control application 

      Haque, Jami; Winter, Darcy; Ploetz, William (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 ...
    • Updated model for lateral displacement of nonuniform webs 

      Olsen, Jan Erik (Oklahoma State University, 2009-06)
      The theory for lateral mechanics of nonuniform webs in the open literature is believed to be flawed and an updated theory is presented. The theory is based on beam theory and a set of boundary conditions. The so-called ...
    • Web line resonant frequencies 

      Pagilla, P. R.; Diao, Y. (Oklahoma State University, 2009-06)
      The goal of this paper is to investigate the resonant frequencies of a system of idle rollers and web spans. Of particular interest is the determination of the minimum resonant frequency as a function of the number of idle ...
    • Web tension in an accumulator and industry needs for the future 

      Michal, Neal (Oklahoma State University, 2009-06)
      A web is defined as a continuous strip of flexible material. Continuous web processes provide cost savings to manufacturers and converters. Converting processes use unwinds to provide a continuous supply of web material. ...