Browsing OSU - International Conference on Web Handling by Author "International Conference on Web Handling (2015)"

Now showing items 1-20 of 28

    • Axisymmetric nonlinear transient thermo-elastic winding model 

      Mollamahmutoglu, C.; Good, J. K. (Oklahoma State University, 2015-06)
      Temperature is among the most important environmental factors which play a crucial role on the mechanical state of wound rolls of web material. Existing literature include studies concerning the thermal characterization ...

    • Belated appreciation of Lisa Sievers' thesis 

      Brown, Jerry L. (Oklahoma State University, 2015-06)
      In her 1987 thesis [1] and a follow-up paper in the IEEE Transactions of Automatic Control [2], Lisa Sievers described three dynamic multi-span models for lateral web behavior.

    • Combined stresses for webs going over rollers 

      Roisum, David R. (Oklahoma State University, 2015-06)
      In research it is typical that only one source of stresses is studied at a time. In entry-level mechanics textbooks, you may see the occasional combined stresses taught where a couple of sources are superposed. Yet, seldom ...

    • Comparison of multi-span lateral dynamics models 

      Brown, Jerry L. (Oklahoma State University, 2015-06)
      It's obvious that when a web changes its lateral position at a roller, subsequent spans will be affected. Less obvious, is the fact that transient stress variations will also affect downstream spans. Multi-span models are ...

    • Containerboard and printing paper wound-on-strain measurements on a pilot winder 

      Jorkama, Marko; Palo, Pekka (Oklahoma State University, 2015-06)
      Wound-On-Strain (WOS) measurement arrangement was set up on a single drum pilot-winder in the Winding Research Center of Valmet Technologies Inc. in Finland. The measurement was implemented with two Laser Doppler Velocimeters ...

    • Control of strip tension in the heating/cooling sections of continuous annealing lines using model-based tension estimation 

      Lu, Youwei; Jee, Changwoon; Pagilla, Prabhakar R. (Oklahoma State University, 2015-06)
      Continuous annealing lines are productive manufacturing lines used by steel making companies for the manufacture of thin steel sheet products. In these lines, the steel strip is continuously heated and cooled depending on ...

    • Coupling of winding models and roll quality instruments 

      Mollamahmutoglu, C.; Bulut, O.; Adari, S.; Good, J. K. (Oklahoma State University, 2015-06)
      Winding models have been under development for roughly 50 years. These models have become mature in their ability to predict the internal residual stresses within a wound roll as a function of winder type, winder operating ...

    • Design of tension control systems to minimize interaction and disturbance propagation in web process lines 

      Raul, Pramod R.; Pagilla, Prabhakar R. (Oklahoma State University, 2015-06)
      In roll-to-roll systems (R2R), a local controller is designed for each section or tension zone based on measurement of web tension and speed from that section; this is typically referred to as decentralized control. This ...

    • Development of intelligent plastic film winder "Windstar" 

      Hashimoto, Hiromu; Tominaga, Yasumasa; Morikawa, Ryo (Oklahoma State University, 2015-06)
      Flexible continuous plastic films are used to produce various products, including optical films and packaging materials, because plastic film is suited to use in mass production manufacturing processes. Generally, the web ...

    • Dimensional stability of substrates for printed electronics 

      Jones, Dilwyn P. (Oklahoma State University, 2015-06)
      Substrates for flexible displays must retain registration between multiple process steps. Although polyester substrates offer cost and handling advantages, their dimensions are affected by tension, temperature and humidity. ...

    • Explicit simulations of cambered web steering 

      Fu, Boshen; Good, James K. (Oklahoma State University, 2015-06)
      Cambered webs are common in the web handling industry. The mechanics analyses of stressed cambered webs have been reported by several publications [1]-[3]. The majority of the test data that exist demonstrate that cambered ...

    • Explicit simulations of web transport through process machines using periodic media analysis technique 

      Fu, Boshen; Michal, Neal (Oklahoma State University, 2015-06)
      In this paper, the periodic media analysis (PMA) technique in Abaqus/Explicit [1] has been applied to simulate multiple cases of web transport through process machines. The Abaqus models for web transport developed in the ...

    • Fast winder change with reduced influence on film tension 

      Schuster, Stefan; Oedl, Gunter (Oklahoma State University, 2015-06)
      For a 2 station turret winder it is shown that the film length increases at winder change (turret rotation, cutting arm movement und contact roller movement). It is shown how this change in length must create a change of ...

    • Friction characteristics between thin plastic film and steel roller 

      Hashimoto, Hiromu; Sunami, Yuta (Oklahoma State University, 2015-06)
      To establish the Roll-to-Roll Printed Electronics, which can be applied to manufacture the high functional thin film based devices, it is needed to combine the Roll-to- Roll transportation system and coating technology ...

    • Impact of thickness measurement on predicting residual stresses due to winding 

      Good, J. K.; Mollamahmutoglu, C.; Markum, R.; Gale, J. W. (Oklahoma State University, 2015-06)
      Axisymmetric winding models were initially developed to deal with web thickness variations that were manifested in the machine and cross machine direction. The web thickness variation is a prime input to these models. Small ...

    • Impact of web permeability on high speed web transport 

      Beuther, Paul D.; Michal, Neal J. (Oklahoma State University, 2015-06)
      Measurements of drag on a moving web in a multi-span festoon show a stronger than expected dependency on the porosity of the web with a highly non-linear relationship. The experiments suggest a wall shear stress 3-4 times ...

    • Impacts of a 90 degree twist on lateral web dynamics 

      Carrle, Jeremy; Lange, Steve; Ba, Shan (Oklahoma State University, 2015-06)
      Twists are sometimes used to turn or provide passive lateral control for narrow webs in those cases where space for a sufficient twist span length (to avoid a wrinkle) is achievable. This paper uses the finite element ...

    • Model-based control of lateral web behavior - An interconnection of two web guiding systems within packaging machinery 

      Philipp, Andre; You, Chang (Oklahoma State University, 2015-06)
      Within packaging industry mostly web materials are used to form bags or similar shaped packages. In order to professionally convert these materials and achieving increasing quality requirements of bags, detailed knowledge ...

    • Moving web instability caused by the bending deflection of the support idle roller 

      Ma, Li'e; Shao, Mingyue; Wu, Jimei; Liu, Shanhui; Liu, Dingqiang (Oklahoma State University, 2015-06)
      The moving web is transported through a lot of rollers in the roll to roll process machines. These rollers are usually driven rollers, dancer rollers and idle rollers. The number of the idle roller is the largest in the ...

    • Optimization of winding conditions for preventing roll defects caused by thermal-viscoelastic property and experimental verification 

      Hashimoto, Hiromu (Oklahoma State University, 2015-06)
      Plastic films are used in many high functional products. They are produced on roll to roll system. The films are continuously wound in the shape of roll using this system. The wound roll is shipped to the store and ...