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Global optimization using accurate approximations in design synthesis

Sepulveda, A.E. / Thomas, H.

The design variable space of a design synthesis problem may contain multiple local optima. In the approximation concepts approach to design synthesis, the design objective and constraint functions are approximated in order to reduce the overall cost. If the approximations accurately capture the actual behaviour of the objective function and constraints, then the approximate design variable space may also contain local optima. In this work, a multistart optimization algorithm is used to search for the global optimum of the actuaal design using just a few design cycles. Example problems are presented to illustrate the methodology set forth.

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Global optimization using accurate approximations in design synthesis

Sepulveda, A.E. / Thomas, H.

The design variable space of a design synthesis problem may contain multiple local optima. In the approximation concepts approach to design synthesis, the design objective and constraint functions are approximated in order to reduce the overall cost. If the approximations accurately capture the actual behaviour of the objective function and constraints, then the approximate design variable space may also contain local optima. In this work, a multistart optimization algorithm is used to search for the global optimum of the actuaal design using just a few design cycles. Example problems are presented to illustrate the methodology set forth.

Global optimization using accurate approximations in design synthesis

Sepulveda, A.E. / Thomas, H.

The design variable space of a design synthesis problem may contain multiple local optima. In the approximation concepts approach to design synthesis, the design objective and constraint functions are approximated in order to reduce the overall cost. If the approximations accurately capture the actual behaviour of the objective function and constraints, then the approximate design variable space may also contain local optima. In this work, a multistart optimization algorithm is used to search for the global optimum of the actuaal design using just a few design cycles. Example problems are presented to illustrate the methodology set forth.

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Title:

Global optimization using accurate approximations in design synthesis

Additional title:

Umfassende Optimierung bei der Konstruktions-Synthese mittels genauer Näherungsverfahren

Contributors:

Sepulveda, A.E. (author) / Thomas, H. (author)

Published in:

Structural Optimization ; 12 ; 251-256

Publication date:

1996

Size:

6 Seiten, 8 Bilder, 3 Tabellen, 22 Quellen

ISSN:

DOI:

https://doi.org/10.1007/BF01197365

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Auslegung (Dimension) , Synthese , Optimierung , Näherungsverfahren , Genauigkeit , Kostenersparnis , Suchalgorithmus , Konvergenz , Variable , frei tragender Träger , Rohr , Torsion , Fachwerk , Iteration , Grenzwert , Rechenzeit , Zielfunktion

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