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A New Study on Reliability-Based Design Optimization

A New Study on Reliability-Based Design Optimization <jats:p>This paper presents a general approach for probabilistic constraint evaluation in the reliability-based design optimization (RBDO). Different perspectives of the general approach are consistent in prescribing the probabilistic constraint, where the conventional reliability index approach (RIA) and the proposed performance measure approach (PMA) are identified as two special cases. PMA is shown to be inherently robust and more efficient in evaluating inactive probabilistic constraints, while RIA is more efficient for violated probabilistic constraints. Moreover, RBDO often yields a higher rate of convergence by using PMA, while RIA yields singularity in some cases.</jats:p> http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Mechanical Design CrossRef

A New Study on Reliability-Based Design Optimization

Journal of Mechanical Design , Volume 121 (4): 557-564 – Dec 1, 1999

A New Study on Reliability-Based Design Optimization


Abstract

<jats:p>This paper presents a general approach for probabilistic constraint evaluation in the reliability-based design optimization (RBDO). Different perspectives of the general approach are consistent in prescribing the probabilistic constraint, where the conventional reliability index approach (RIA) and the proposed performance measure approach (PMA) are identified as two special cases. PMA is shown to be inherently robust and more efficient in evaluating inactive probabilistic constraints, while RIA is more efficient for violated probabilistic constraints. Moreover, RBDO often yields a higher rate of convergence by using PMA, while RIA yields singularity in some cases.</jats:p>

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Publisher
CrossRef
ISSN
1050-0472
DOI
10.1115/1.2829499
Publisher site
See Article on Publisher Site

Abstract

<jats:p>This paper presents a general approach for probabilistic constraint evaluation in the reliability-based design optimization (RBDO). Different perspectives of the general approach are consistent in prescribing the probabilistic constraint, where the conventional reliability index approach (RIA) and the proposed performance measure approach (PMA) are identified as two special cases. PMA is shown to be inherently robust and more efficient in evaluating inactive probabilistic constraints, while RIA is more efficient for violated probabilistic constraints. Moreover, RBDO often yields a higher rate of convergence by using PMA, while RIA yields singularity in some cases.</jats:p>

Journal

Journal of Mechanical DesignCrossRef

Published: Dec 1, 1999

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