Conservative approximations in nonlinear optimization. theory and examples

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dc.contributor.authorLongo, A.
dc.contributor.authorNó, M.
dc.contributor.authorAizpitarte, M.
dc.contributor.authorUnzueta, J.
dc.contributor.institutionCentros PRE-FUSION TECNALIA - (FORMER)
dc.date.accessioned2024-07-24T12:15:15Z
dc.date.available2024-07-24T12:15:15Z
dc.date.issued1991
dc.description.abstractA new nonlinear optimization approach with strong convergence properties is presented. This approach is based on approximate subproblems, a nondifferentiable penalty function and a set active strategy, and is well suited for solution of design problems in engineering, where the number of variables may be large and function and gradient evaluations are very expensive (e.g. in structural optimization). The main theoretical results are presented, which lead to a general algorithm from which well-known methods (e.g. Pschenichny's baseline, method of hybrid approximations) can be seen as particular cases. Also, a new kind of convex approximation called SOC (second order correction) is introduced in this context, and some examples are solved by a practical algorithm implemented in a C module called ACPM.en
dc.description.statusPeer reviewed
dc.format.extent9
dc.identifier.citationLongo , A , Nó , M , Aizpitarte , M & Unzueta , J 1991 , ' Conservative approximations in nonlinear optimization. theory and examples ' , Computers and Structures , vol. 39 , no. 5 , pp. 441-449 . https://doi.org/10.1016/0045-7949(91)90052-N
dc.identifier.doi10.1016/0045-7949(91)90052-N
dc.identifier.issn0045-7949
dc.identifier.urihttps://hdl.handle.net/11556/4557
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=0025745651&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofComputers and Structures
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCivil and Structural Engineering
dc.subject.keywordsModeling and Simulation
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsMechanical Engineering
dc.subject.keywordsComputer Science Applications
dc.titleConservative approximations in nonlinear optimization. theory and examplesen
dc.typejournal article
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