FOCOMP‘ 99

4th International Conference

Simulation, Designing and Control of Foundry Processes

25-26 November 1999 Kraków, Poland

Organized by:

Foundry Research Institute, Kraków-Poland

in cooperation with:

Academy of Mining and Metallurgy, Kraków-Poland

Department of Automatics

Department of Computer Science

Institute for Metal Science of Bulgarian Academy of Sciences, Sofia-Bulgaria

Foundry Institute of the RWTH Aachen, Aachen-Germany

Sponsored by:

State Committee for Scientific Research - KBN, Warszawa - Poland

Scientific Committee

J. Suchy (Poland) – Chairman

J. Tybulczuk (Poland) V-Chairman

S. Nawarecka (Poland) V-Chairman

Y. Arsov (Bulgaria)

Z. Binder (France)

G. Dobrowolski (Poland)

H. Górecki (Poland)

T. Kaczorek (Poland)

W. Kapturkiewicz (Poland)

P. Ladet (France)

W. Mitkowski (Poland)

B. Mochnacki (Poland)

H. Połcik (Poland) – Secretary

P. H.Sahm (Germany)

V. Srovnal (Czech Republic)

R. Tadeusiewicz (Poland)

M. Vrozina (Czech Republic)

Local Organizing Committee:

Z. Pączek (Chairman)

M. Madej

S. Nawarecka

H. Połcik (Secretary)

K. Rabczak

M. Warmuzek

J. Wilk

Published by Instytut Odlewnictwa Kraków, Poland

Reviewers:

Y. Arsov

G. Dobrowolski

T. Kaczorek

W. Kapturkiewicz

J. Kusiak

W. Mitkowski

H. Połcik

R. Tadeusiewicz

Cover design: Elżbieta Alda

Technical editor: Małgorzata Warmuzek

Copyright by Instytut Odlewnictwa w Krakowie, 1999

All right reserved, No part of this publication may be reproduced without the written

permission of the publisher.

Proceedings have been printed from the camera-ready manuscripts supplied by the authors.

ISBN: 83-911283-1-8

CONTENTS

Foreword

Computer-aided research in Foundry Research Institute in Kraków - J. Tybulczuk

Scientific researches and results obtained in the area of mathematical modeling and numerical

simulation of the foundry technology processes in IMS-BAS - Y.B. Arsov

I. Mathematical foundation

Relationship between the value of discretisation step and stability of linear dynamic

systems - T. Kaczorek

Modelling and optimization energy for sequence casting operation - W. Wajs

Control quality index for regular structure growth during composite in situ formation -

K. Rabczak , W. Wołczyński

II. Modelling and Simulation

Infiltration of porous preform by liquid metal simulated with dissipative particle

dynamics - W. Alda, K. Boryczko, Z. Górny, W. Dzwinel, J.Kitowski, S. Kluska-

Nawarecka

Agent - based simulation in finite element environment - S. Bieniasz , K. Cetnarowicz,

S. Kluska-Nawarecka

Computer simulation of the eutectic Al-Si alloys solidification - S. Bieniasz, M.

Warmuzek, E. Czekaj, A. Gazda, H. Połcik

Mathematical model of crystallisation in composite ingots with solid insert - S.

Brodskij, I. Pavluchenkov, A. Stovpchenko, S. Samochvalov, S. Kazakov

Theoretical and numerical analysis of segregation of solid particles in centrifuge

casting process - L. B. Drenchev, J. Sobczak

A new approach for solving inverse heat transfer problems and problems for

optimization in the mould - casting system - G. Guerguiev

Simulation and optimization of the casting technologies processes using MAGMA

software - G. Guerguiev, L. Drenchev

Shaping the mathematical strength of a transport pallet casting operating under the

conditions of thermal shocks - K.J. Hubner, J. Piekło, S. Pysz

Problem of the temperature gradient approximation in the post- processing procedures

of simulation code - Z. Ignaszak, L. Hącia, P. Mikołajczak

Numerical experiment as a method for explanation of process mechanism - W.

Kapturkiewicz

Modelling and control of Al-Si alloys solidification process - S. Kluska-Nawarecka, H.

Połcik, M. Warmuzek

Formalisation of approach to designing and simulation of formation of "liquid

sandwich"composite steel - V. Kondratenko, T. Titova, V. Belousov

Numerical simulation of casting solidification on the basis of the boundary method -

B. Mochnacki, E. Majchrzak, J. Suchy

III. Artificial Intelligence

Utilisation of neural networks for steel thermal treatment modelling - Z. Jancikova,

M.Vrozina, V.Srovnal

Learning analysis of casting defects using the expert system - S. Kluska-Nawarecka, T.

Wójcik, G. Dobrowolski, R. Marcjan

Application of artificial neural networks to design and control of casting processes -

M. Perzyk, A. Kochański

IV. Technological problems

Three - dimensional model of solidification of continuous cast rectangular billets - E.I.

Marukovich, A.M. Branovitsky

Process control for thermal distortion in chemically -bonded sands - S. Ramrattan

Modelling of non-steady state dendritic growth - M. Reger, T. Reti

V. Management and Control System

On decentralised robust control system organisation - Z. Binder

Algorithms of steering manufacture processes selection in flexible manufacturing

systems (FMS) - L. Zawadzka, J. Łopatowska

Informative technologies in flexible manufacturing systems (FMS) - L. Zawadzka

Numerical simulation and control of the counter-pressure casting process - P. H.Sahm,

P. Stojanov, A. Buhrig-Polaczek, T. Zeuner, Y.B. Arsov, G. Gueorguiev, K. Daskalov,

L. Drenchev, I. Katzarov, J. Popov, G. Batchvarov, R. Kovatcheva, S. Kluska-

Nawarecka, A. Fajkiel, H. Połcik, M. Warmuzek