Browsing OSU - International Conference on Web Handling by Title

Now showing items 308-327 of 429

    • Robust control design using H-infinity methods in large scale web handling systems 

      Knittel, D. (Oklahoma State University, 2003-06)
      This paper presents H-infinity control strategies for elastic web transport systems. The aim is to reduce the coupling between web tension and web transport velocity. First of all, a multivariable H., centralized controller ...

    • Role of active dancers in tension control of webs 

      Pagilla, P. R.; Perera, L. P.; Dwivedula, R. V. (Oklahoma State University, 2001-06)
      This paper investigates the role of active dancers in attenuation of web tension disturbances in a web process line. A general structure of the active dancer is considered; an input/output model is developed for analysis ...

    • Roll design effect on nip pressure 

      Simbierowicz, G.; Vanninen, R. (Oklahoma State University, 2005-06)
      The quality of reeling process is a key factor in achieving production efficiency, especially when machine speed and paper width continue to increase. For calendered and coated grades of paper the main problems are the ...

    • Roll speed and web tension regulation using two degree of freedom control systems 

      Raul, Pramod R.; Pagilla, Prabhakar R. (Oklahoma State University, 2015-06)
      In this paper, we first consider the problem of load speed regulation in a two inertia system consisting of a motor shaft connected to the load shaft via a mechanical transmission. The problem is reminiscent of a material ...

    • Roll variability analysis for non-statisticians 

      Thuer, Amy; Dennison, Avery (Oklahoma State University, 2019-06)
      Roll variability can be characterized by several different methods. Off line cross-direction (CD) scans of thickness or coat weight give a snapshot of CD variation over a small machine-direction (MD) range. Roll hardness ...

    • Roll-to-roll gravure printed smart food package to replace the "use-by" date system of foods 

      Maskey, Bijendra Bishow; Koirala, Gyan Raj; Kim, Seongryeong; Sun, Junfeng; Shrestha, Kiran; Kim, Yushin; Park, Hyejin; Cho, Gyoujin (Oklahoma State University, 2019-06)
      The implementation of internet of things (IoT) to the food industry offers a great deal, accompanying each functional unit from production to the consumption to ensure the quality of a particular food item. Among several ...

    • Roller nip deflections 

      Cole, Kevin; Schneider, Brooks (Oklahoma State University, 2017-06)
      Rubber covered nip rollers are used in many web handling and processing applications. Successful use of these systems requires an accurate knowledge of the impact of various design and process parameters on key response ...

    • Sensorless tension control of webs 

      Wolfermann, W. (Oklahoma State University, 1997-06)
      Production plants with continuous moving webs have a complex structure where mechanical, electrical and control problems are involved. To solve the problems of these systems, it is necessary to take the entire system into account.

    • Sensors and signal processing: An optical edge sensor for transparent film applications 

      Gronquist, D. (Oklahoma State University, 1991-05)
      Sensing the edge of transparent film webs has always been somewhat difficult. Optical sensors typically see through the low opacity webs while pneumatic, ultrasonic and other sensors have their own sets of unique problems.

    • Shear effects and lateral dynamics of imperfect webs 

      Olsen, J. E. (Oklahoma State University, 2003-06)
      A mathematical model describing the lateral dynamics of an imperfect web has been derived. The model includes the effect of shear forces. This was enabled by the development of a theory for beams of inhomogeneous materials. ...

    • Shear in multispan web systems 

      Good, J. K. (Oklahoma State University, 1997-06)
      Wrinkling research has been concentrated in past years on understanding web wrinkling in isolated spans in web lines [1]. It is expected that some of the fundamentals which govern single span behavior will also apply to ...

    • Shear slitting of aluminum webs 

      Ma, J.; Lu, H.; Li, M. (Oklahoma State University, 2005-06)
      Shear slitting of aluminum webs using both disk knives and block knives were investigated using a laboratory slitter. The effects of the clearance, overlap, blade overdrive, and cant angle on burr height were studied on ...

    • Shear slitting of aluminum webs using block knives 

      Lu, Hongbing; Ma, Jin; Li, Ming; Becker, Bernie (Oklahoma State University, 2007-06)
      C Shear slitting of two aluminum webs, namely 1050 H18 of 0.28 mm thick and 5182 H19 of 0.20 mm thick, using block knives are investigated through experiments using a laboratory slitter. This investigation focused on two ...

    • 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. ...

    • Simple model to predict web-to-roller traction 

      Rice, B. S.; Gans, R. F. (Oklahoma State University, 2003-06)
      We have studied the traction developed between a thin, flexible web and a rotating cylindrical roller. We present a new analytic model for high-wrap, circumferentially grooved rollers that couples air film pressure, web ...

    • 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 ...

    • Simulation of wrinkling patterns in webs due to non-uniform transport conditions 

      Benson, Richard C.; Chiu, Han Chieh; LaFleche, John; Stack, Kenneth D. (Oklahoma State University, 1993-06)

    • Spatially dependent transfer functions for web lateral dynamics 

      Cobos Torres, E. O.; Pagilla, Prabhakar R. (Oklahoma State University, 2017-06)
      In this paper we derive spatially dependent transfer functions for web span lateral dynamics which provide web lateral position and slope as outputs at any location in the span; the inputs are guide roller displacement, ...

    • 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 ...

    • Stick-slip behavior of paper during friction testing 

      Penner, A. P. (Oklahoma State University, 1995-06)
      Paper often exhibits oscillatory stick-slip motion during friction testing using a horizontal sled apparatus. The motion consists of a constant-amplitude oscillation in the force required to move the sled, which may ...