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A temperature predicting model for manufacturing processes requiring coiling

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dc.creator Troyani Nando
dc.creator Montano Luis
dc.date 1999
dc.date.accessioned 2013-05-30T11:17:20Z
dc.date.available 2013-05-30T11:17:20Z
dc.date.issued 2013-05-30
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-73861999000400008
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01007386&date=1999&volume=21&issue=4&spage=655
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/4489
dc.description A model for predicting temperature evolution for automatic controling systems in manufacturing processes requiring the coiling of bars in the transfer table is presented. Although the method is of a general nature, the presentation in this work refers to the manufacturing of steel plates in hot rolling mills. The predicting strategy is based on a mathematical model of the evolution of temperature in a coiling and uncoiling bar and is presented in the form of a parabolic partial differential equation for a shape changing domain. The mathematical model is solved numerically by a space discretization via geometrically adaptive finite elements which accomodate the change in shape of the domain, using a computationally novel treatment of the resulting thermal contact problem due to coiling. Time is discretized according to a Crank-Nicolson scheme. Since the actual physical process takes less time than the time required by the process controlling computer to solve the full mathematical model, a special predictive device was developed, in the form of a set of least squares polynomials, based on the off-line numerical solution of the mathematical model.
dc.publisher The Brazilian Society of Mechanical Sciences
dc.source Journal of the Brazilian Society of Mechanical Sciences
dc.subject Temperature Prediction
dc.subject Thermal Contact
dc.subject Finite Elements
dc.subject Metal coiling
dc.title A temperature predicting model for manufacturing processes requiring coiling

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