Active control and parameter updating techniques for nonlinear thermal network models
(2001) Computational Mechanics — Vol. 27, n° 1, p. 11-22 (2001)
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- Abstract
- The present article reports on active control and parameter updating techniques for thermal models based on the network approach. Emphasis is placed on applications where radiation plays a dominant role. Examples of such applications are the thermal design and modeling of spacecrafts and space-based science instruments. Active thermal control of a system aims to approximate a desired temperature distribution or to minimize a suitably defined temperature-dependent functional. Similarly, parameter updating aims to update the values of certain parameters of the thermal model so that the output approximates a distribution obtained through direct measurements. Both problems are formulated as nonlinear, least-square optimization problems. The proposed strategies for their solution are explained in detail and their efficiency is demonstrated through numerical tests. Finally, certain theoretical results pertaining to the characterization of solutions of the problems of interest are also presented.
- Affiliations
California Institute of Technology, Pasadena, CA 91109, ETATS-UNIS Jet Propulsion Laboratory
Citations
Papalexandris, M., & Milman, M. H. (2001). Active control and parameter updating techniques for nonlinear thermal network models. Computational Mechanics, 27(1), 11-22. https://doi.org/10.1007/s004660000209 (Original work published 2001)