Journal
ENGINEERING WITH COMPUTERS
Volume 17, Issue 2, Pages 129-150Publisher
SPRINGER
DOI: 10.1007/PL00007198
Keywords
deterministic analysis; engineering design, kriging; metamodels; robust design; RSM
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The use of statistical techniques to build approximations of expensive computer analysis codes pervades much of today's engineering design. These statistical approximations, or metamodels, are used to replace the actual expensive computer analyses, facilitating multidisciplinary, multiobjective optimization and concept exploration. In this paper, we review several of these techniques, including design of experiments, response surface methodology, Taguchi methods, neural networks, inductive learning and kriging. We survey their existing application in engineering design, and then address the dangers of applying traditional statistical techniques to approximate deterministic computer analysis codes. We conclude with recommendations for the appropriate use of statistical approximation techniques in given situations, and how common pitfalls can be avoided.
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