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Dynamics of a web accumulator
(Oklahoma State University, 1999-06)
A conventional accumulator with no driven rollers and all rollers identical is studied for avoidance of excessive tension, slackness and slippage on the rollers. The total force imposed by the web spans on the carriage is ...
Limitations to sensing of web tension by means of roller reaction forces
(Oklahoma State University, 1999-06)
Classical frequency response analysis of a dancer or a roller mounted on load cells reveals that such devices are severely limited in their ability to sense the dynamic tension in a web. The response of a tension control ...
Shear wrinkling in isolated spans
(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. ...
Effects of web camber on handling
(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.
Deflection and critical velocity of rollers
(Oklahoma State University, 1995-06)
A coordinate system with its origin at the center of the roller, and with the origin moving as the roller deflects, is used for solution of the fourth order differential equation of beam mechanics. The result is a continuous ...