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Sequential designs for sensitivity analysis of functional inputs in computer experiments

Jana Fruth 1 Olivier Roustant 2, 3, 4, 5, 6 Sonja Kuhnt 7
1 TU - Technische Universität Dortmund [Dortmund]
2 GdR MASCOT-NUM - Méthodes d'Analyse Stochastique des Codes et Traitements Numériques
3 DEMO-ENSMSE - Département Décision en Entreprise : Modélisation, Optimisation
4 Mines Saint-Étienne MSE - École des Mines de Saint-Étienne
5 LIMOS - Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes
6 FAYOL-ENSMSE - Institut Henri Fayol
7 Dortmund University of Applied Sciences and Arts
Abstract : Computer experiments are nowadays commonly used to analyze industrial processes aiming at achieving a wanted outcome. Sensitivity analysis plays an important role in exploring the actual impact of adjustable parameters on the response variable. In this work we focus on sensitivity analysis of a scalar-valued output of a time-consuming computer code depending on scalar and functional input parameters. We investigate a sequential methodology, based on piecewise constant functions and sequential bifurcation, which is both economical and fully interpretable. The new approach is applied to a sheet metal forming problem in three sequential steps, resulting in new insights into the behavior of the forming process over time.
Keywords : Sheet metal forming Springback Functional input Sequential approach Sensitivity analysis
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Journal articles
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https://hal-emse.ccsd.cnrs.fr/emse-01146010
Contributor : Florent Breuil <>
Submitted on : Monday, April 27, 2015 - 2:37:54 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:17 PM

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EMSE | DEMO-ENSMSE | FAYOL-ENSMSE | CNRS | INSTITUT-TELECOM | TDS-MACS | LIMOS | PRES_CLERMONT

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Jana Fruth, Olivier Roustant, Sonja Kuhnt. Sequential designs for sensitivity analysis of functional inputs in computer experiments. Reliability Engineering and System Safety, Elsevier, 2015, 134, pp.Pages 260-267. ⟨10.1016/j.ress.2014.07.018⟩. ⟨emse-01146010⟩

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