Computational aspects of RBFN meta-models for reliability problems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00302928" target="_blank" >RIV/68407700:21110/16:00302928 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Computational aspects of RBFN meta-models for reliability problems
Original language description
The reliability-based design optimization (RBDO) seeks such designs that are cheap but still reliable. Despite the growing performance of computers, evaluation of reliability measures is still computationally expensive especially for small failure probabilities. In simulation techniques often used for the computation of reliability, the largest part of the computational time is devoted to a repeated evaluation of a performance function represented by a finite element model (FEM). In our approach, the original FEM model is replaced by a meta-model that has a similar response but it is faster to evaluate. Several samples still have to be evaluated with the original model; these samples are used for the meta-model construction. Radial basis functions (RBF) interpolation meta-models are still computationally expensive since every construction sample increases a dimension of a linear system. This contribution focuses on a reduction of the computational effort spent on the RBF model evaluation during RBDO. In comparison to our previous versions, the resulting system of equation is factorized subsequently with the adaptive updating of the meta-model leading to substantial computational time reduction.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
32nd conference with international participation Computational Mechanics 2016 - Book of Extended Abstracts
ISBN
978-80-261-0647-0
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
69-70
Publisher name
University of West Bohemia
Place of publication
Pilsen
Event location
Špičák
Event date
Oct 31, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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