Metamodels for Computer-based Engineering Design: Survey and recommendations |
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| Authors: | TW Simpson JD Poplinski P N Koch JK Allen |
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| Affiliation: | (1) Mechanical and Nuclear Engineering and Industrial and Manufacturing Engineering, The Pennsylvania State University, University Park, PA, USA, US;(2) The Statistical Design Institute, Garland, Texas, USA, US;(3) Engineous Software, Inc., Cary, NC, USA, US;(4) Systems Realization Laboratory, Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA, US |
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| Abstract: | 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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| Keywords: | ,Deterministic analysis, Engineering design, Kriging, Metamodels, Robust design, RSM |
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