Serviceeinschränkungen vom 12.-22.02.2026 - weitere Infos auf der UB-Homepage
  • A family of MMA approximations...

Treffer: A family of MMA approximations for structural optimization

Title:
A family of MMA approximations for structural optimization
Authors:
Bruyneel, Michaël, Duysinx, Pierre, Fleury, Claude
Source:
Structural and Multidisciplinary Optimization, 24 (4), 263-276 (2002-10)
Publisher Information:
Springer-Verlag, 2002.
Publication Year:
2002
Subject Terms:
structural approximations, method of moving asymptotes, Engineering, computing & technology, Aerospace & aeronautics engineering, Ingénierie, informatique & technologie, Ingénierie aérospatiale
Document Type:
Fachzeitschrift journal article<br />http://purl.org/coar/resource_type/c_6501<br />article<br />peer reviewed
Language:
English
Relation:
http://www.springer.com/engineering/journal/158; urn:issn:1615-147X; urn:issn:1615-1488
DOI:
10.1007/s00158-002-0238-7
Access URL:
https://orbi.uliege.be/handle/2268/573
Rights:
open access
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
Accession Number:
edsorb.573
Database:
ORBi

Weitere Informationen

This paper proposes a new first-order approximation scheme used for solving structural optimization problems. It is based on approximations of the MMA family (MMA and GCMMA), but it utilizes the gradients and/or the function values at two successive design points to improve the quality of the approximation. In addition, this scheme can consider simultaneously monotonous and nonmonotonous structural behaviour. According to the characteristics of the treated problem, one of the approximations or a mix of them is automatically selected. Based on this approach, the accuracy of the approximated subproblems is improved and the solution process can be sped up. Numerical results compare the effectiveness of the method with previously derived approximations of the MMA family for shape optimization of trusses and for composite design problems. The benefit of using mixed approximations is also discussed.