Engineering Mechanics

Proceedings Vol. 13 (2007)

ENGINEERING MECHANICS 2007

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 14 – 17, 2007, Svratka, Czech Republic

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Editors: Igor Zolotarev

ISBN 978-80-87012-06-2 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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LIMITATION OF THERMAL INVERSE ALGORITHM AND BOUNDARY CONDITIONS RECONSTRUCTION FOR VERY FAST CHANGES ON BOUNDARY

Pohanka M.
pages 229 - +10p., full text

Direct measurements of boundary conditions in application such as descaling or hot rolling in steel industry or in experiments that simulates these processes are impossible. Thus temperature histories are recorded inside the investigated body. The distance of the measurement point from the investigated surface strongly influences the shortest impulse that can be reconstructed by an inverse method. The time delay dependence on distance of the measurement point from the surface is shown in this paper. According to this time delay and quality of the measurement device a minimal number of forward steps are computed for sequential Beck’s inverse algorithm. Based on the number of forward steps the degradations of reconstructed boundary conditions are presented.

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Engineering Mechanics

International Conference

Proceedings Vol. 13 (2007)

ENGINEERING MECHANICS 2007