Inverse Heat Conduction Problem of Periodically Contacting Surfaces

[+] Author and Article Information
G. P. Flach, M. N. Özişik

Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27695-7910

J. Heat Transfer 110(4a), 821-829 (Nov 01, 1988) (9 pages) doi:10.1115/1.3250580 History: Received November 09, 1987; Online October 20, 2009


An inverse heat conduction method for determining the periodically time-varying contact conductance between two periodically contacting surfaces is presented. The technique is based on solving two single-region inverse problems for the contact surface temperature and heat flux of each solid. The time variation of contact surface temperature is represented with a versatile periodic B-spline basis. The dimension of the B-spline basis is statistically optimized and confidence bounds are derived for the estimated contact conductance. Typical results based on both simulated and actual measurements are given and a parametric study is made to illustrate the general effects of measurement location, number of measurements, etc., on the accuracy of the results.

Copyright © 1988 by ASME
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