Options
Robust design optimization with design-dependent random input variables
Citation Link: https://doi.org/10.15480/882.2926
Publikationstyp
Journal Article
Date Issued
2020-02-01
Sprache
English
Author(s)
TORE-DOI
TORE-URI
Volume
61
Issue
2
Start Page
661
End Page
674
Citation
Structural and Multidisciplinary Optimization 61 (2): 661-674 (2020-02-01)
Publisher DOI
Scopus ID
Publisher
Springer
This paper addresses the dependency of design parameters and random variables within robust design optimization. If the stochastic distributions of random input variables are design-dependent, then this dependency must be included in the gradient, when using gradient-based optimization methods. The paper provides the basic theoretical principles and two approaches for incorporating design-dependent distributions of random variables in robust design optimization: one approach based on Monte Carlo sampling and another based on Taylor series expansions. Both these approaches do not require additional structural analyses (e.g., finite element simulations). Describing the design dependency of input distributions can, however, be a challenging task. Numerical applications to different academic examples are presented, demonstrating the potential of the proposed approaches and several implications that may emerge in the process.
Subjects
Design-dependent random variables
Probabilistic approaches
Robust design optimization
Robust topology optimization
DDC Class
620: Ingenieurwissenschaften
Publication version
acceptedVersion
Loading...
Name
RDOdesignDepDist_twoCol.pdf
Size
532.94 KB
Format
Adobe PDF