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LPT-1997-13  [BibTeX]

Joachim Blum, Wolfgang Marquardt:

Robust and efficient solution of the inverse heat conduction problem using observers

In: J. Henriette, P. Lybaert M. El Hayeck (Eds.): EUROTHERM Seminar 53, Advanced Concepts and Techniques in Thermal Modelling, Mons, Belgium, 8-10.10.1997, 175-182

Abstract:
Observers are proposed as a solution algorithm for the inverse heat conduction problem (IHCP) of reconstructing a time-dependent surface heat flux at the boundary of a linear heat conductor. Solving the IHCP is viewed as a filter design problem in which the reconstructed heat flux is obtained by lowpass-filtering of the true heat flux. It is demonstrated that observers yield a better tradeoff between the deterministic bias and the sensitivity to measurement errors and lead to smaller-size computational problems than other solution approaches.

Keywords:
Heat transfer, inverse heat conduction problem, observer, lowpass filter

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