Browsing OSU - International Conference on Web Handling by Title

Now showing items 163-182 of 429

    • Influence of heating on tensile and relaxation behavior of wet paper 

      Kouko, Jarmo; Retulainen, Elias; Kekko, Pasi (Oklahoma State University, 2013-06)
      The influence of increasing temperature on the strength and relaxation of wet never-dried paper was studied using C-IMPACT, a tensile tester equipped with a special heating chamber. The heating device formed a small climate ...

    • Influence of the gap throttle effect on the winding process and roll quality 

      Welp, E. G.; Kleinert, A.; Smukala, V. (Oklahoma State University, 2005-06)
      In the paper industry the winding technology has a significant influence on the quality of finished rolls. The rising productivity and quality efforts require a constant optimization of the winding process concerning the ...

    • Influence of web warpage on the lateral dynamics of webs 

      Benson, R. C. (Oklahoma State University, 1999-06)
      The transport of long flexible webs is of great importance in many manufacturing applications, including the processing of paper, textiles, magnetic tapes and photographic film. Beginning with the pioneering work of Shelton ...

    • 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 ...

    • Instrumenting rolling nips for video recording and strain recording 

      Pfeiffer, J. D. (Oklahoma State University, 1993-06)
      An apparatus has been constructed to study the effect of a rolling nip on multiple layers of paper or other material. The use of a roller in contact with the surface of a winding product roll excludes air and produces ...

    • Intelligent roll platform for better runnability 

      Pitkanen, Tatu; Bettendorf, Bob; Tuomisto, Martti (Oklahoma State University, 2009-06)
      An intelligent roll is a mechatronic system consisting of a roll in a web handling machine that is also used as a transducer for sensing cross machine tension or linear load. The intelligent roll has electret film force ...

    • 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 ...

    • Interactions of time dependent, thermal and hygroscopic characteristics and runnability properties of paper 

      Welp, E. G.; Niebuhr, V. (Oklahoma State University, 2007-06)
      For purposes of design and optimization of industrial processing, many of the physical properties of paper have to be taken into account. The knowledge of the mechanical properties as part of the physical ones must be ...

    • Investigation of fluid mechanics of slotted air-jets for air reverser applications 

      Lopez, E.; Muftu, S. (Oklahoma State University, 2005-06)
      The fluid mechanics of the air flow, caused by a series of impinging air-jets, in a constant-height, rigid channel is investigated using computational fluid dynamics (CFD). The primary goal of this work is to investigate ...

    • Irreversible reduction of foil tension due to aerodynamical effects 

      Bouquerel, F.; Bourgin, P. (Oklahoma State University, 1993-06)
      Computation of the residual stress generated during the winding of a plastic film has been coped with by many authors. These studies are based on the assumption that the residual stresses mainly depend on two winding ...

    • Issues in modeling slitting of magnetic tapes 

      Andruet, R. H.; Cook, R. F.; Qualls, W. R. (Oklahoma State University, 2003-06)
      In order to quantify and understand the driving force for film layer fracture, delamination, and the cutting phenomena in general, an idealized two-dimensional "slitting" model was developed. The model includes two lower ...

    • Japanese patents investigation report on web handling technology 

      Ohnishi, S.; Matsumoto, K.; Walker, T. (Oklahoma State University, 1991-05)
      In order to initiate programs in web handling, it is necessary to understand the technical vector that has developed in the field. In this paper we have investigated 1784 Japanese patents on web handling technology that ...

    • Ke models: Theoretical dynamic subsystems of longitudinal web strain 

      Strike, G. P. (Oklahoma State University, 2011-06)
      Efficient design and optimization of many production processes often require models which predict transient and steady state web strains. To date, much attention has been given to modeling web strains much less than unity. ...

    • Laminate theory based 2D curl model 

      Kidane, Sam (Oklahoma State University, 2009-06)
      The laminate theory provides a method of analyzing the mechanics of multilayer composite laminates. With the appropriate definition of the load vector, the laminate theory can be extended to model curl resulting from ...

    • Large deformation winding models 

      Mollamahmutoglu, C.; Good, J. K. (Oklahoma State University, 2009-06)
      Almost all winding models incorporate the assumption of small linear deformations and strain in development. As such these models treat the addition of a layer of web to a winding roll with linear analysis using linear ...

    • Lateral control of a web using estimated velocity feedback 

      Pagilla, P. R.; Dwivedula, R. V.; Zhu, Y. L.; Mandal, S. S.; Hopcus, K.; Haque, J. (Oklahoma State University, 2001-06)
      The focus of this paper is on lateral control of a web using estimated motor velocity feedback. A reduced state velocity observer is designed to estimate the motor velocity based on the measured lateral position of the web ...

    • Lateral deflections of webs in air-flotation ovens 

      Moretti, P. M. (Oklahoma State University, 2001-06)
      A long web span supported by many, regularly spaced, alternating air-bars is studied. The focus is on the lateral forces on the web due to the interaction of lateral curvature with out-of-plane deflections. The effect of ...

    • Lateral dynamics of non-uniform webs 

      Swanson, Ronald P. (Oklahoma State University, 2009-06)
      A new method of generating and testing cambered web has been developed. Experimental lateral static data is presented for twenty six different conditions and dynamic data is presented for five of these conditions. Numerous ...

    • Lateral dynamics simulation of webs having cross-machine direction variation 

      Lange, Stephen; Looney, Michael; Carrle, Jeremy (Oklahoma State University, 2013-06)
      Webs often include sectional variation in caliper or modulus of elasticity as a result of undesirable manufacturing variation or by intentional design. These variations influence wrinkle formation and tracking control in ...

    • Lateral mechanics of an imperfect web 

      Olsen, J. E. (Oklahoma State University, 2001-06)
      A model describing the lateral mechanics of an imperfect web has been derived which brings forward information on the much debated fourth boundary condition. The model is based upon a generalized beam theory. Calculations ...