{"id":{"repo_id":"vu-aus","oai_identifier":"oai:eprints.vu.edu.au:15282"},"canonical_url":"https://search.dev.ndltd.org/etd/vu-aus/oai:eprints.vu.edu.au:15282","repository":{"repo_id":"vu-aus","name":"Victoria University (Australia)","base_url":"https://vuir.vu.edu.au/cgi/oai2"},"display":{"title":"Evolutionary structural optimization method for systems with stiffness and displacement constraints","abstract":"This thesis presents the development of an evolutionary method for optimization of stmctures subject to displacement and stiffness constraints. Using an optimality criteria approach, the study provides a rigorous mathematical basis to the recently proposed evolutionary stmctural optimization (ESO) method. New types of sensitivity numbers for element removal have been formulated from the optimality conditions of the general weight minimization problem. The optimal shape and topology of a structure is obtained by repeated finite element analysis and element removal until the sensitivity numbers become uniform by which the optimality conditions are satisfied, or no further improvement in the objective can be achieved. It is shown that the method can be applied to other constraints on generalized displacements, stiffness, stress and frequency. Investigations on various aspects of the proposed method have been carried out to show its validity and efficiency for shape and topology optimization.","abstract_html":"This thesis presents the development of an evolutionary method for optimization of stmctures subject to displacement and stiffness constraints. Using an optimality criteria approach, the study provides a rigorous mathematical basis to the recently proposed evolutionary stmctural optimization (ESO) method. New types of sensitivity numbers for element removal have been formulated from the optimality conditions of the general weight minimization problem. The optimal shape and topology of a structure is obtained by repeated finite element analysis and element removal until the sensitivity numbers become uniform by which the optimality conditions are satisfied, or no further improvement in the objective can be achieved. It is shown that the method can be applied to other constraints on generalized displacements, stiffness, stress and frequency. Investigations on various aspects of the proposed method have been carried out to show its validity and efficiency for shape and topology optimization.","abstract_has_math":false,"creators":["Chu, Duc Nha"],"institution":"Victoria University of Technology","degree_name":"phd","degree_level":"doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1997,"date_issued":"1997","date_published":"1997","updated_at":"2026-07-24T06:33:07Z","subjects":["1202 Building","School of Engineering and Science"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Chu, Duc Nha"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1997"]},{"key":"dc:date.issued","label":"Date","values":["1997"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Civil and Building Technology"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["Victoria University of Technology"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://vuir.vu.edu.au/15282/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["phd"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["1202 Building","School of Engineering and Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://vuir.vu.edu.au/15282/8/CHU%20Duc%20Nha-thesis_nosignature.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This thesis presents the development of an evolutionary method for optimization of stmctures subject to displacement and stiffness constraints. Using an optimality criteria approach, the study provides a rigorous mathematical basis to the recently proposed evolutionary stmctural optimization (ESO) method. New types of sensitivity numbers for element removal have been formulated from the optimality conditions of the general weight minimization problem. The optimal shape and topology of a structure is obtained by repeated finite element analysis and element removal until the sensitivity numbers become uniform by which the optimality conditions are satisfied, or no further improvement in the objective can be achieved. It is shown that the method can be applied to other constraints on generalized displacements, stiffness, stress and frequency. Investigations on various aspects of the proposed method have been carried out to show its validity and efficiency for shape and topology optimization."]},{"key":"dc:format","label":"Dc Format","values":["text"]},{"key":"dc:title","label":"Title","values":["Evolutionary structural optimization method for systems with stiffness and displacement constraints"]}]}],"canonical_facts":{"dc:creator":["Chu, Duc Nha"],"dc:date":["1997"],"dc:date.issued":["1997"],"dc:description.abstract":["This thesis presents the development of an evolutionary method for optimization of stmctures subject to displacement and stiffness constraints. Using an optimality criteria approach, the study provides a rigorous mathematical basis to the recently proposed evolutionary stmctural optimization (ESO) method. New types of sensitivity numbers for element removal have been formulated from the optimality conditions of the general weight minimization problem. The optimal shape and topology of a structure is obtained by repeated finite element analysis and element removal until the sensitivity numbers become uniform by which the optimality conditions are satisfied, or no further improvement in the objective can be achieved. It is shown that the method can be applied to other constraints on generalized displacements, stiffness, stress and frequency. Investigations on various aspects of the proposed method have been carried out to show its validity and efficiency for shape and topology optimization."],"dc:format":["text"],"dc:identifier.uri":["https://vuir.vu.edu.au/15282/8/CHU%20Duc%20Nha-thesis_nosignature.pdf"],"dc:language":["en"],"dc:publisher.department":["Department of Civil and Building Technology"],"dc:publisher.institution":["Victoria University of Technology"],"dc:relation.isreferencedby":["https://vuir.vu.edu.au/15282/"],"dc:subject":["1202 Building","School of Engineering and Science"],"dc:title":["Evolutionary structural optimization method for systems with stiffness and displacement constraints"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["doctoral"],"dc:type.qualificationname":["phd"]},"updated_at":"2026-07-24T06:33:07Z"}