Mixed discrete synthetic approach for nonlinear design optimization

Ying Xiong, Singiresu S Rao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Engineering optimization problems often encounter mixed discrete design variables. Very few of the existing methods can obtain a globally optimal solution if the objective functions are non-convex and nondifferentiable. In this research, a mixed discrete synthetic approach (MDSA), taking the advantages of random search methods and deterministic search methods, is proposed. Specifically, the modified complex algorithm is combined with the hybrid negative sub-gradient search, coupled with an implicit enumeration checking-point technique, for the solution of mixed-discrete optimization problems. The MDSA is used for the optimal designs of a pressure vessel and a welded beam. The numerical results demonstrate the high reliability and effectiveness of the MDSA as an advanced global method in solving mixed-discrete engineering optimization problems.

Original languageEnglish
Title of host publication44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
StatePublished - Dec 1 2003
Event44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003 - Norfolk, VA, United States
Duration: Apr 7 2003Apr 10 2003

Other

Other44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003
CountryUnited States
CityNorfolk, VA
Period4/7/034/10/03

Fingerprint

Pressure vessels
Design optimization
Optimal design

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

Cite this

Xiong, Y., & Rao, S. S. (2003). Mixed discrete synthetic approach for nonlinear design optimization. In 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Mixed discrete synthetic approach for nonlinear design optimization. / Xiong, Ying; Rao, Singiresu S.

44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 2003.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xiong, Y & Rao, SS 2003, Mixed discrete synthetic approach for nonlinear design optimization. in 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003, Norfolk, VA, United States, 4/7/03.
Xiong Y, Rao SS. Mixed discrete synthetic approach for nonlinear design optimization. In 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 2003
Xiong, Ying ; Rao, Singiresu S. / Mixed discrete synthetic approach for nonlinear design optimization. 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 2003.
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