Ettl, A., Steinböck, A., & Kugi, A. (2025). Dynamical model of the lateral strip motion in a tandem hot rolling mill. Journal of Manufacturing Processes, 151, 372–386. https://doi.org/10.1016/j.jmapro.2025.06.018
E376-02 - Forschungsbereich Komplexe Dynamische Systeme E056-10 - Fachbereich SecInt-Secure and Intelligent Human-Centric Digital Technologies
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Journal:
Journal of Manufacturing Processes
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ISSN:
1526-6125
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Date (published):
15-Oct-2025
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Number of Pages:
15
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Publisher:
ELSEVIER SCI LTD
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Peer reviewed:
Yes
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Keywords:
Hot strip rolling; dynamical model; parameter estimation
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Abstract:
Laterally asymmetric rolling conditions can cause a lateral motion (snaking) of the strip in flat rolling. This lateral motion can deteriorate the product quality due to contact with plant components or lead to collisions and, consequently, downtimes of the plant. A model-based snaking controller can ensure safe plant operation and consistent product quality. This paper presents a control-orientated mathematical model of the lateral strip motion. It can serve as a basis for observer and control design because of its low-dimensional and computationally inexpensive structure and low effort required for parameterization. The proposed model is based on first principles. Unknown or uncertain parameters are estimated by solving tailored optimization problems. The model is then validated by measurements from an industrial plant. This validation confirms the model’s high accuracy and the small computational effort.