Optimum location of sensors used for mould parameters estimation

• Autorzy: Majchrzak E. , Mendakiewicz J.
• Języki publikacji: EN

Abstrakty

EN

Heat transfer processes proceeding in the system casting-mould-environment are considered. In particular, the inverse problem connected with the estimation of thermal conductivity and volumetric specific heat of mould material is presented. To estimate the parameters, the additional information concerning the temperature history at the points selected from domain considered is necessary. The essential problem is a proper choice of sensors localization. The application of sensitivity analysis assures the increase of identification efficiency and this problem is here presented. In the final part of the paper the examples of computations are shown.

Słowa kluczowe

EN

foundry industry; solidification process; numerical techniques; inverse problem; heat transfer

PL

przemysł odlewniczy; krzepnięcie; wymiana ciepła

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1
• Strony: 97--100
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Majchrzak E.

autor

Mendakiewicz J.

• Department for Strength of Materials and Computational Mechanics Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] B. Mochnacki, J.S. Suchy, Identification of alloy latent heat on the basis of mould temperature (Part 1), Archives of Foundry 6, 22 (2006) 324-330.
• [2] J. Mendakiewicz, Application of identification methods in solidification process modelling, Archives of Foundry Engineering, Vol. 8, No 1, 2008, 203-210.
• [3] K. Kurpisz, A.J. Nowak, Inverse Thermal Problems, Computational Mechanics Publications, Southampton-Boston, 1995.
• [4] M. Kleiber, Parameter sensitivity, J.Wiley & Sons Ltd., Chichester, 1997.
• [5] R. Szopa, Sensitivity analysis and inverse problems in the thermal theory of foundry, Publ. of the Czest. Univ. of Techn., Czestochowa, 2006.
• [6] K. Dems, B. Rousselet, Sensitivity analysis for transient heat conduction in a solid body, Structural Optimization, 17 (1999), 36-45.
• [7] B. Mochnacki, E. Majchrzak, Identification of macro and micro parameters in solidification model, Bulletin of the Polish Academy of Sciences, Technical Sciences, Vol. 55, No 1, 2007, 107-113.
• [8] E. Majchrzak, B. Mochnacki, Identification of thermal properties of the system casting - mould, Materials Science Forum 539-543 (2007) 2491-2496.
• [9] B. Mochnacki, J.S. Suchy, Numerical methods in computations of foundry processes, PFTA, Cracow, 1995.
• [10] E. Majchrzak, J. Mendakiewicz, Identification of cast iron substitute thermal capacity, Archives of Foundry, 6, 22 (2006) 310-315.
• [11] E. Majchrzak, J. Mendakiewicz, Gradient method of cast iron latent heat identification, Archives of Foundry Engineering, Vol. 7, 4, 2007, 121-126.