Author : National Aeronautics and Space Administration (NASA)
Release : 2018-06-19
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Kind : eBook
Book Rating : 681/5 ( reviews)

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Book Synopsis Multidisciplinary Aerospace Systems Optimization by : National Aeronautics and Space Administration (NASA)

Download or read book Multidisciplinary Aerospace Systems Optimization written by National Aeronautics and Space Administration (NASA). This book was released on 2018-06-19. Available in PDF, EPUB and Kindle. Book excerpt: The report describes a method for performing optimization of a system whose analysis is so expensive that it is impractical to let the optimization code invoke it directly because excessive computational cost and elapsed time might result. In such situation it is imperative to have user control the number of times the analysis is invoked. The reported method achieves that by two techniques in the Design of Experiment category: a uniform dispersal of the trial design points over a n-dimensional hypersphere and a response surface fitting, and the technique of krigging. Analyses of all the trial designs whose number may be set by the user are performed before activation of the optimization code and the results are stored as a data base. That code is then executed and referred to the above data base. Two applications, one of the airborne laser system, and one of an aircraft optimization illustrate the method application. Kodiyalam, S. and Sobieski, Jaroslaw S. (Technical Monitor) Langley Research Center NASA/CR-2001-211053, NAS 1.26:211053