A FUZZY LOGIC APPROACH FOR OPTIMAL CONTROL OF CONTINUOUS CASTING PROCESS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU98583" target="_blank" >RIV/00216305:26210/12:PU98583 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

A FUZZY LOGIC APPROACH FOR OPTIMAL CONTROL OF CONTINUOUS CASTING PROCESS

Original language description

Nowadays the continuous casting is used for providing almost one hundred percent of world steel production. A wide range of steel grades is continuously cast with high-quality achievements. The solidifying steel, during its pass through the caster, is subjected to variable thermal conditions and mechanical loading, both of which contribute to the material stresses and strains, the main sources of the defects. Some of these defects might be eliminated by a preceding computer simulation, optimization and subsequent control of the casting process. This paper describes an original algorithm for obtaining such control parameters which ensure the high production rate and the high quality of products as well. This algorithm is based on the keeping surface and core temperatures in the specific ranges corresponding with ductility of steel. The core of the algorithm is our original three-dimensional numerical model of temperature field where heat and mass transfer phenomenon including phase changes is deal with. Geometry and specifications of the caster are taken from the real caster operating in EVRAZ VÍTKOVICE STEEL, a.s. This model is verified by pyrometers measurements. The optimization part lies above the numerical model and iteratively improves the input parameters (casting speed and cooling rates) in order to reach desired surface and core temperatures. The optimization algorithm is performed by our fuzzy-logic interface and runs in off-line version. Its results can be used as a preparation tool for the real casting process.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

METAL 2012 Conference proceedings

ISBN

978-80-87294-29-1

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

35-40

Publisher name

TANGER, spol. s r. o.

Place of publication

Ostrava, Czech Republic

Event location

Brno

Event date

May 23, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000318506500020