A new algorithm for mixed-discrete design optimization

Singiresu S Rao, Ying Xiong

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

Abstract

A new procedure, based on the modification of the genetic algorithm, is presented for the solution of mixed-discrete nonlinear design optimization. In this approach, the genetic algorithm is used mainly to determine the optimal feasible region containing the global optimum point, and he hybrid negative sub-gradient or Polak-Ribiere-Poiyak (PRP) conjugate gradient method, combined with discrete one-dimension search, is subsequently used to replace the GA to find the final optimum solution. The modified genetic algorithm can improve the convergence speed and computational efficiency compared with other GAs or random search methods. Several practical examples of mechanical design are tested using the computer program developed. The numerical results demonstrate the effectiveness and robustness of the proposed approach.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages4215-4227
Number of pages13
Volume6
StatePublished - 2004
EventCollect. of Pap. - 45th AIAA/ASME/ASCE/AHS/ASC Struct., Struct. Dyn. and Mater. Conf.; 12th AIAA/ASME/AHS Adapt. Struct. Conf.; 6th AIAA Non-Deterministic Approaches Forum; 5th AIAA Gossamer Spacecraft Forum - Palm Springs, CA, United States
Duration: Apr 19 2004Apr 22 2004

Other

OtherCollect. of Pap. - 45th AIAA/ASME/ASCE/AHS/ASC Struct., Struct. Dyn. and Mater. Conf.; 12th AIAA/ASME/AHS Adapt. Struct. Conf.; 6th AIAA Non-Deterministic Approaches Forum; 5th AIAA Gossamer Spacecraft Forum
CountryUnited States
CityPalm Springs, CA
Period4/19/044/22/04

Fingerprint

Genetic algorithms
Conjugate gradient method
Computational efficiency
Computer program listings
Design optimization

ASJC Scopus subject areas

  • Architecture

Cite this

Rao, S. S., & Xiong, Y. (2004). A new algorithm for mixed-discrete design optimization. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 6, pp. 4215-4227)

A new algorithm for mixed-discrete design optimization. / Rao, Singiresu S; Xiong, Ying.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 6 2004. p. 4215-4227.

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

Rao, SS & Xiong, Y 2004, A new algorithm for mixed-discrete design optimization. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 6, pp. 4215-4227, Collect. of Pap. - 45th AIAA/ASME/ASCE/AHS/ASC Struct., Struct. Dyn. and Mater. Conf.; 12th AIAA/ASME/AHS Adapt. Struct. Conf.; 6th AIAA Non-Deterministic Approaches Forum; 5th AIAA Gossamer Spacecraft Forum, Palm Springs, CA, United States, 4/19/04.
Rao SS, Xiong Y. A new algorithm for mixed-discrete design optimization. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 6. 2004. p. 4215-4227
Rao, Singiresu S ; Xiong, Ying. / A new algorithm for mixed-discrete design optimization. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 6 2004. pp. 4215-4227
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