Browsing Proceedings of the International Conference on Web Handling by Title

Now showing items 94-113 of 429

    • Edge flutter in webs 

      Chang, Y. B.; Moretti, P. M. (Oklahoma State University, 1991-05)
      A persistent problem in paper machines and other webs subjected to drying air flows is edge flutter. The resulting stresses can damage the edges, initiate tears and breaks in paper machines, or spoil coatings near the edges ...

    • Effect of air entrainment in centerwound rolls 

      Good, J. K.; Holmberg, M. W. (Oklahoma State University, 1993-06)
      Internal stress models for centerwound rolls have existed for over thirty years but no model to date has accounted for air which is entrained due to the web velocity and the viscosity of air. This paper reports the results ...

    • Effect of air-side leakage in roll winding 

      Lei, H.; Cole, K. A. (Oklahoma State University, 2003-06)
      In web winding processes, a thin layer of air is entrained into rolls during winding. This air reduces the interlayer pressure in the wound roll because the air acts like a sponge between adjacent web layers. Winding models ...

    • Effect of compliance and backlash on the output speed of a transmission system 

      Ramamurthy, R. V.; Pagilla, P. (Oklahoma State University, 2005-06)
      Backlash is one of the most commonly encountered nonlinearities in drive systems employing gears or ball-screws and indicates the play between adjacent movable parts. Presence of backlash causes delays and oscillations and ...

    • Effect of dual actuating strip guidance systems in a continuous steel annealing line 

      Otten, J. B.; Limpens, C. H. L.; Boots, R. A.; Michel, H. (Oklahoma State University, 1997-06)
      In the past, Royal Hoogovens, a main primary steel and aluminum manufacturer in the Netherlands, used pre-shaped rolls and sophisticated tension tables to guarantee good strip tracking for all strip geometry's in both their ...

    • Effect of high velocities, startup and shutdown on winding 

      Olsen, J. E. (Oklahoma State University, 1995-06)
      The effect of high velocities on wound rolls is analyzed by applying a winding model accounting for the centrifugal effect. Also realistic velocity functions with startup and shutdown are considered. The effect of high ...

    • Effect of mass transfer on multi-span lateral dynamics of a uniform web 

      Brown, Jerald L. (Oklahoma State University, 2017-06)
      This paper will show that the acceleration equation used in multi-span lateral dynamic models is a consequence of mass transfer between spans1. Mass transfer effects fully account for the equation currently used in ...

    • Effect of mass transfer on multi-span lateral dynamics of nonuniform webs 

      Brown, Jerald L. (Oklahoma State University, 2017-06)
      Since the publication of Shelton's original work [1] on lateral web dynamics in 1968, the cambered1 web has attracted the attention of researchers. Shelton, himself, felt it was a natural "next step" in lateral dynamics. ...

    • Effect of speed loop bandwidths and line-speed on system eigenvalues in multi-span web transport systems 

      Boulter, B. T. (Oklahoma State University, 1997-06)
      Web transport systems are composed of multiple tension zones. These zones are separated by driven rolls such as calenders, bridles or nipped rolls whose speed is regulated by a closed loop controller. Given that tension ...

    • Effect of web rheology and peeling on web transfer in open draw 

      Kurki, M.; Vestola, J.; Martikainen, P.; Pakarinen, P. (Oklahoma State University, 1997-06)
      To achieve higher productivity in papermaking, the increasing of web speed is the most efficient way. However, velocity increase will also immediately cause greater demands according to the web strength.

    • Effect of winder type and web material properties on wound-on-tension 

      Ren, Y.; Kandadai, B.; Good, J. K. (Oklahoma State University, 2013-06)
      The choice of winder type for various web materials has long been a qualitative discussion. Web materials are vast and hence the range of web material properties is also vast. Valid but conflicting opinions for an optimal ...

    • Effects of air entrainment on vacuum drive roller traction 

      Dobbs, J. N. (Oklahoma State University, 2001-06)
      Vacuum assisted drive rollers are commonly used to provide additional traction in web tension control schemes. Single-sided web contact makes them a natural choice between a coating station and an oven where lower tensions ...

    • Effects of concave rollers, curved-axis rollers and web camber on the deformation and translation of a moving web 

      Brown, J. L. (Oklahoma State University, 2005-06)
      A new method of analysis is applied to three problems that have resisted detailed solution. These are:

    • Effects of nip parameters on media transport 

      Stack, K. D.; LaFleche, J. E.; Benson, R. C. (Oklahoma State University, 1995-06)
      The mechanics of a web being transported through a set of elastomeric rollers has been investigated. Three general classes of roller materials are identified. These nip materials are then characterized by the speed at which ...

    • Effects of non-ideal webs on roll winding 

      Cole, K. A. (Oklahoma State University, 2003-06)
      In typical winding processes, webs are rarely (if ever) ideal but instead thickness non-uniformity and distortions (two examples) are the norm. These deviations from ideal have significant ramifications to both predictive ...

    • Effects of parameter uncertainties on longitudinal web dynamics 

      Frechard, Jonathan; Knittel, Dominique; Martz, Yannick (Oklahoma State University, 2013-06)
      Web handling systems are very common in industry for metal, paper, textile and polymer material treatments. The key variables to monitor and control are the web speed and web tension in each span. The objective is to reach ...

    • Effects of PID gains for controller with dancer mechanism on web tension 

      Lin, P.; Lan, M. S. (Oklahoma State University, 1993-06)
      A dancer mechanism is widely used in connection with a tension controller in the tension control systems for web printing presses. The common tension controllers perform proportional, integral, and/or derivative (PID) ...

    • 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.

    • Electromagnetic lateral control system of floating strip 

      Kamiyama, T.; Uchida, H.; Marumoto, S.; Yoneda, H.; Suzuki, N. (Oklahoma State University, 1995-06)
      Strip floating system is effective to avoid strip wrinkles and defects caused by roll contact, and to keep high quality of steel strip in the continuous processing lines.

    • Empirical investigation of weave versus web-to-roller traction in floating loop dryers 

      Walton, R. L. (Oklahoma State University, 2001-06)