Paper Title:
Sensitivity Analysis as a Tool of Optimal Sensors Location for Solidification Parameters Estimation
  Abstract

The paper deals with the inverse problems appearing in the thermal theory of foundry processes. In particular, the problems connected with identification of casting and mould thermophysical parameters can be considered. To estimate the parameters determining heat transfer processes in the system casting-mould, the additional information concerning the changes of temperature at the points selected from the domain considered is necessary. The localization of sensors should assure the best conditions of identification process. Generally speaking, the sensor should be located at the point for which the sensitivity of temperature field with respect to parameter estimated achieves maximum. In the case of simultaneous identification of several parameters, the proper choice of sensors localization is more complicated. The main goal of the paper is to discuss a theoretical base connected with the problem formulated, to present the possibilities of numerical methods application, to solve the problem, and finally to show the examples of inverse problems solutions (in particular, the latent heat of binary alloy will be estimated).

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
2640-2645
DOI
10.4028/www.scientific.net/MSF.638-642.2640
Citation
E. Majchrzak, J. Mendakiewicz, "Sensitivity Analysis as a Tool of Optimal Sensors Location for Solidification Parameters Estimation", Materials Science Forum, Vols. 638-642, pp. 2640-2645, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Josef Stetina, František Kavička, Jana Dobrovská, Libor Camek, Milos Masarik
Abstract:Solidification and cooling of a continuously cast steel slab and the heating of the mould is a very complicated problem of transient heat and...
3831
Authors: Zenon Ignaszak, Paweł Popielarski
Abstract:The modeling of heat transfer in materials containing exothermic components must take into consideration the presence of heat sources in the...
1438
Authors: Feng Ni, Shi Zhong Wei, Rui Long
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:The technique of continuous casting with heated mould is a kind of near-net-shape processing technology, which combines unidirectional...
225
Authors: Li Hua Wang, Xiang Liu, Ya Yu Huang
Chapter 2: Materials and Processing Technologies
Abstract:When using Large-scale semi-opened copper mould die-casting machine, it can reduce the shrinkage cavity and porosity, improve the surface...
464
Authors: Bohdan Mochnacki, Ewa Majchrzak
Abstract:The aim of considerations is the numerical modeling of thermal processes proceeding in the system external heat source - protective clothing...
13