Enhancing product robustness in reliability-based design optimization

Xiaotian Zhuang, Rong Pan, Xiaoping Du

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Different types of uncertainties need to be addressed in a product design optimization process. In this paper, the uncertainties in both product design variables and environmental noise variables are considered. The reliability-based design optimization (RBDO) is integrated with robust product design (RPD) to concurrently reduce the production cost and the long-term operation cost, including quality loss, in the process of product design. This problem leads to a multi-objective optimization with probabilistic constraints. In addition, the model uncertainties associated with a surrogate model that is derived from numerical computation methods, such as finite element analysis, is addressed. A hierarchical experimental design approach, augmented by a sequential sampling strategy, is proposed to construct the response surface of product performance function for finding optimal design solutions. The proposed method is demonstrated through an engineering example.

Original languageEnglish (US)
Pages (from-to)145-153
Number of pages9
JournalReliability Engineering and System Safety
Volume138
DOIs
StatePublished - 2015

Fingerprint

Product Design
Product design
Robustness
Probabilistic Constraints
Sequential Sampling
Uncertainty
Sampling Strategy
Surrogate Model
Robust Design
Response Surface
Model Uncertainty
Costs
Multiobjective optimization
Experimental design
Multi-objective Optimization
Numerical Computation
Design of experiments
Finite Element
Sampling
Engineering

Keywords

  • Kriging metamodel
  • optimization
  • Robust design
  • Sequential optimization and reliability assessment Sequential sampling

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Safety, Risk, Reliability and Quality
  • Applied Mathematics

Cite this

Enhancing product robustness in reliability-based design optimization. / Zhuang, Xiaotian; Pan, Rong; Du, Xiaoping.

In: Reliability Engineering and System Safety, Vol. 138, 2015, p. 145-153.

Research output: Contribution to journalArticle

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