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MAUDER, T. ŠANDERA, Č. ŠTĚTINA, J. ŠEDA, M.
Originální název
Optimization of Quality of Continuously Cast Steel Slabs by Using Firefly Algorithm
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
An ambition to increase both the productivity and the final product quality, in continuous casting process, led us to study new effective mathematical approaches. The quality of steel produced by continuous casting process is influenced by number of controlled factors as a casting speed or cooling rates. Appropriate setting of these factors is usually done by expert estimates and expensive experimental runs. This paper describes an algorithm for obtaining black-box type solution which maintains high production rate and high quality of products as well. The core of the algorithm is our original numerical model of 2D temperature field designed for real caster geometry. This mathematical model contains Fourier-Kirchhoff equation, including boundary conditions. The presence of phase and structural changes is modeled by an enthalpy computed from chemical composition of steel. The optimization part is performed by recently created heuristic method, so-called Firefly algorithm, where the principles of searching for optimal values are inspired by biological behavior of fireflies. By combining the numerical model and heuristic optimization we are able to set the controlled values and to obtain high quality steel which satisfies constrains for prescribed metallurgical length, core and surface temperatures. This approach can be easily utilized for arbitrary class of steel only by changing chemical composition in the numerical model. The results of simulations can be validated by real historical data in purpose to reach relationship between temperature field and final product quality.
Klíčová slova
Firefly algorithm, Temperature field, Enthalpy approach, Continuous casting
Autoři
MAUDER, T.; ŠANDERA, Č.; ŠTĚTINA, J.; ŠEDA, M.
Rok RIV
2011
Vydáno
1. 7. 2011
Nakladatel
Inštitut za kovinske materiale tehnologije
Místo
Lepi pot 11, SI - 1001 Ljubljana Slovenija
ISSN
1580-2949
Periodikum
Materiali in tehnologije
Ročník
45
Číslo
4
Stát
Slovinská republika
Strany od
347
Strany do
350
Strany počet
BibTex
@article{BUT72807, author="Tomáš {Mauder} and Čeněk {Šandera} and Josef {Štětina} and Miloš {Šeda}", title="Optimization of Quality of Continuously Cast Steel Slabs by Using Firefly Algorithm", journal="Materiali in tehnologije", year="2011", volume="45", number="4", pages="347--350", issn="1580-2949" }