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Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling

Seuren, S. ; Willkomm, J. ; Bücker, H. M. ; Bambach, M. ; Hirt, G.
eds.: Kusiak, J. ; Majta, J. ; Szeliga, D. (2012)
Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling.
In: Proceedings of the 14th International Conference on Metal Forming
Book Section, Bibliographie

Abstract

Consistent modelling of multipass hot rolling processes has to account for numerous interdependencies within the process. With a growing number of passes, the sensitivity of the model output with respect to variations in the input parameters plays a vital role for assessing the accuracy and stability of the computation. This study details a new concept of using Automatic Differentiation (AD) to obtain exact derivatives of the output values of the numerical model for plate rolling. It is shown that the sensitivities of the roll force with respect to selected material and process parameters can be computed through AD technology. As use case the rolling of a plain C-Mn steel plate is analysed. The results show substantial differences in the influence characteristics of particular input parameters.

Item Type: Book Section
Erschienen: 2012
Editors: Kusiak, J. ; Majta, J. ; Szeliga, D.
Creators: Seuren, S. ; Willkomm, J. ; Bücker, H. M. ; Bambach, M. ; Hirt, G.
Type of entry: Bibliographie
Title: Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling
Language: English
Date: September 2012
Place of Publication: Krakow, Poland
Publisher: Wiley-VCH
Book Title: Proceedings of the 14th International Conference on Metal Forming
Event Title: 14th International Conference on Metal Forming (Metal Forming 2012)
Event Location: Krakow, Poland
Abstract:

Consistent modelling of multipass hot rolling processes has to account for numerous interdependencies within the process. With a growing number of passes, the sensitivity of the model output with respect to variations in the input parameters plays a vital role for assessing the accuracy and stability of the computation. This study details a new concept of using Automatic Differentiation (AD) to obtain exact derivatives of the output values of the numerical model for plate rolling. It is shown that the sensitivities of the roll force with respect to selected material and process parameters can be computed through AD technology. As use case the rolling of a plain C-Mn steel plate is analysed. The results show substantial differences in the influence characteristics of particular input parameters.

Uncontrolled Keywords: Plate Rolling, Roll Force Model, Slab Method, Microstructure Evolution, Sensitivity Analysis, Automatic Differentiation, ADiMat, Matlab
Divisions: 20 Department of Computer Science > Scientific Computing
20 Department of Computer Science
Date Deposited: 16 May 2013 11:27
Last Modified: 16 May 2013 11:27
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