Modelling and Optimisation for a 20High Cold Rolling Mill

Heidepriem, J.; Werners, R.; Schneider, A.

doi:10.1016/s1474-6670(17)35904-9

Cited by 2 publications

(1 citation statement)

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“…As a special case, the interesting relationship: can be derived using equation (14) and after some manipulations, see also [20]. From the equations derived above, the following interpretations can be given: -if a gap mismatch due to actuator change, e.g.…”

Section: Experimental Model Verificationmentioning

confidence: 99%

Explicit models of thickness profile and tension stress distribution for process control applications

Jelali

2000

Steel Research

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This contribution aims to present a compact and efficient model for the calculation of strip thickness profile and shape which refers to the tension stress distribution. The model is derived from appropriate combination and generalisation of analytical approaches well known in the published literature. The basis for the model is given from analytical solutions of the gaugemeter, roll force and tension stress differential equations linearised about the actual operating point. A novel profile and flatness prediction algorithm is developed which leads to more efficient solutions for cold and hot rolling mills. The resulting algorithm has substantial advantages over the traditional models in its efficient computation, and hence, provides an opportunity for real-time implementation in advanced model based control systems. ExpliziteModelle fUr Querprofil und Zugspannungsverteilung zur Anwendung bei ProzeBregelungen. Der Beitrag stellt ein kornpaktes und effizientes Modell zur Berechnung von Profil und Planheit im Hinblick auf die Zugspannungsverteilung bei Warm-und Kaltwalzprozessen vor. Kombination, Vereinfachung und Verallgemeinerung von in der Literatur vorhandenen Ansatzen ermoglichen die Herleitung des Modells. Die Basis bilden analytische t.osunqen der Differentialgleichugen fOr Banddickenprofil, Walzkraft-und Zugspannungen, die um den eigentlichen Arbeitspunkt linearisiert werden. Ergebnis ist ein neuer Algorithmus zur Vorhersage von Banddickenprofil und -planheit warm-und kaltgewalzter Bander. Der Hauptvorteil gegenOber klassischen Modelle liegt in der effizienten Rechnung, die die Implementierung von modernen modellbasierten Regelungskonzepten fur Profil und Planheit ermoqlicht.

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Section: Experimental Model Verificationmentioning

confidence: 99%