Accéder directement au contenu Accéder directement à la navigation
Nouvelle interface
Article dans une revue

Evaluation of temperature field and heat flux by inverse analysis during steel strip rolling

Abstract : Knowledge of the temperature field in the roll is a critical factor of modern, high-speed rolling mills. In this paper, an inverse analytical method is developed to determine the temperature field and especially the temperature (and heat flux) at the surface of the roll by measuring the temperature with a thermocouple (fully embedded) at only one point inside the roll. Iterative methods are not studied because short computation times are desired. Some assumptions are done to resolve analytically the unsteady heat equation, taking into account the restrictions of the measurement system (e.g., measurement according to successive times). The solution is validated by comparing the outputs of the method and prescribed analytical temperature fields. Good agreement is obtained. Noise sensitivity is estimated by adding artificial random numbers to the inputs. Good accuracy is observed. A 10 \% error of the temperature sensor depth is also considered and does not compromise the method. On the other hand, the computation time (around 0.05 second by cycle) is studied to rapidly optimise the industrial parameters during the rolling process.
Liste complète des métadonnées
Contributeur : Daniel Weisz-Patrault Connectez-vous pour contacter le contributeur
Soumis le : jeudi 8 décembre 2011 - 02:53:10
Dernière modification le : mardi 5 juillet 2022 - 13:58:57
Archivage à long terme le : : vendredi 9 mars 2012 - 02:25:59


Fichiers produits par l'(les) auteur(s)



Daniel Weisz-Patrault, Alain Ehrlacher, Nicolas Legrand. Evaluation of temperature field and heat flux by inverse analysis during steel strip rolling. International Journal of Heat and Mass Transfer, 2012, 55 (4), pp.629-641. ⟨10.1016/j.ijheatmasstransfer.2011.10.048⟩. ⟨hal-00649450⟩



Consultations de la notice


Téléchargements de fichiers