ENBIS-17 in Naples

9 – 14 September 2017; Naples (Italy) Abstract submission: 21 November 2016 – 10 May 2017

Design of Experiments Used in Engineering Using Virtual Simulations

11 September 2017, 10:30 – 10:50


Submitted by
Rene Klerx
Bryan Dodson (SKF Group Six Sigma), Giacomo Landi (SKF USA Inc.), Rene Klerx (SKF Group Six Sigma)
In recent years, the use of Design of Experiments (DOE) in engineering has been used increasingly. While test rig experiments remain costly, the advancement of computer hardware and software made virtual simulations a real possibility for many problems that was not possible to model before. The bearing industry is a notable example. Nowadays, many variables can be considered in the study generating large amount of data. When the underlying physical equations are not known, it is common practice to interpolate the DOE results assuming a second order polynomial. While this is a reasonable assumption, it can also be misleading and valuable information may be lost. In this paper, different interpolations are tested for common engineering equations, including higher order polynomial, Fourier series and splines. Advantages and disadvantages of each alternative are discussed and guidelines are suggested.

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