Fast Prediction of Temperature by FEM in Hot Strip Rolling

Abstract:

Finite element method (FEM) has been one of the most important numerical simulation tools with the development of computer technology. However, it is only used to simulate and analyze different process offline in many fields because of the longer computational time. The influencing factors of prediction of temperature in the strip rolling by FEM including equations, mesh and storage of matrix was investigated in the paper. The lumped heat capacity matrix was introduced to resolve the oscillation problem and improve precision. Furthermore, the refined elements layer upon layer was discussed to improve solution efficiency and precision. In addition, in order to improve the solution efficiency one dimensional compressed storage method was employed to carry out in the solution of equations. The FEM program code for the solution of temperature was embed in the online rolling control system program successfully. The predictive results are in good agreement with the measured value. The computational time and precision are satisfied in the strip rolling process.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 616-620
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.616
• Online since: February 2012
• Authors: Rui Bin Mei, Ban Cai, Chang Sheng Li, Xianghua Liu
• Keywords: Rolling , Fast Prediction, Finite Element Method (FEM), Online Application, Temperature

References

[1] H. H. Wisselink and J. Huétink: J. Mater. Proc. Tech Vol. 148(2004), p.328

[2] C. W. Knight, S. J. Hardy, A. W. Lees and K.J. Brown: J. Mater. Proc. Tech Vol. 168(2005), p.184

[3] Siamak Serajzadeh: Mater. Sci. Eng., A Vol. 448(2007), p.146

[4] X. H. Liu: Regid plastic FEM and its application in rolling (Metallurgy Industry Press, China 1994)

[5] C. S. Li, X. H.Liu and G. D.Wang: J. Mat. Proc. Tech Vol.120(2002), p.26

[6] X. T. Li, M. T.Wang and F. S.Du: J. Mat. Proc. Tech Vol.172(2006), p.202

[7] K. Mori, Y. Otomo and H. Yoshimura: J. Mat. Proc. Tech Vol. 177(2006), p.63

[8] C. S. Li, R. B. Mei, G. L. Zhang, S. N. Song and X. H. Liu: Steel. Res. Int. Vol 1(2008), p.417

[9] R. B. Mei, C. S. Li, X. H. Liu and B. Han: J.Iron. Steel. Res. Int Vol.17(2010), p.17

[10] O. C. Zienkiewicz: The finite element method in engineering science (McGraw-Hill, England 1977)

[11] R. B. Mei, C. S. Li, X. H.Liu, S. N. Song and L. Bao: Adv. Sci. Lett. Vol 4 (2011), p.2347

[12] S. X. Zhou: J. Mat. Proc. Tech Vol.134 (2003), p.338

[13] G. D. Wang: The theory and experience of strip rolling (Railroad Press, China 1990)