NDLI: Optimization under uncertainty for electronics cooling design applications

Content Provider	IEEE Xplore Digital Library
Author	Bodla, K.K. Murthy, J.Y. Garimella, S.V.
Copyright Year	2012
Description	Author affiliation: School of Mechanical Engineering and Birck Nanotechnology Center, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907-2088, USA (Bodla, K.K.; Murthy, J.Y.; Garimella, S.V.)
Abstract	Optimization under uncertainty is a powerful methodology used in design and optimization to produce robust, reliable designs. Such an optimization methodology, employed when the input quantities of interest are uncertain, yields output uncertainties that help the designer choose appropriate values for input parameters to produce safe designs. Apart from providing basic statistical information such as mean and standard deviation in the output quantities, uncertainty-based optimization produces auxiliary information such as local and global sensitivities. The designer may thus decide the input parameter(s) to which the output quantity of interest is most sensitive, and thereby design better experiments based on just the most sensitive input parameter(s). Another critical output of such a methodology is the solution to the inverse problem, i.e, finding the allowable uncertainty (range) in the input parameter(s), given an acceptable uncertainty (range) in the output quantities of interest. We apply optimization under uncertainty to the problem of heat transfer in fin heat sinks with uncertainties in geometry and operating conditions. The analysis methodology is implemented using DAKOTA, an open source design and analysis kit. A response surface is first generated which captures the dependence of the quantity of interest on inputs. This response surface is then used to perform both deterministic and probabilistic optimization of the heat sink, and the results of the two approaches are compared.
Starting Page	1191
Ending Page	1201
File Size	1123437
Page Count	11
File Format	PDF
ISBN	9781424495337
ISSN	10879870
e-ISBN	9781424495320
e-ISBN	9781424495313
DOI	10.1109/ITHERM.2012.6231558
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimization Uncertainty Polynomials Mathematical model Heat transfer Convergence design of experiments Uncertainty quantification optimization under uncertainty heat transfer electronics cooling DAKOTA generalized polynomial chaos sensitivity analysis
Content Type	Text
Resource Type	Article

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