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基于拓扑优化的铸钢节点优化设计方法 Title:OptimizationDesignMethodofCastSteelNodesbasedonTopologyOptimization Abstract: Withtheincreasingdemandforhigh-performancesteelstructures,thereisagrowingneedforanefficientandaccurateoptimizationdesignmethodforcaststeelnodes.Inthispaper,anovelapproachbasedontopologyoptimizationisproposedtoaddressthisissue.Themethodaimstooptimizethegeometryofcaststeelnodeswhileconsideringthestructuralperformance,manufacturingconstraints,andmaterialsavings.Theproposedmethodincludesfourmainsteps:designspacedefinition,loadandboundaryconditions,topologyoptimization,andpost-processing.Theeffectivenessoftheproposedmethodisdemonstratedthroughacasestudy.Theresultsshowthattheoptimizedcaststeelnodeshaveimprovedstructuralperformanceandreducedmaterialusagecomparedtotraditionaldesigns.Thisresearchprovidesvaluableinsightsforengineersandresearchersinvolvedinthedesignofcaststeelnodesforsteelstructures. 1.Introduction 1.1Background 1.2ResearchObjectives 1.3ResearchSignificance 2.LiteratureReview 2.1OverviewofCastSteelNodes 2.2DesignChallengesandConstraints 2.3ExistingOptimizationMethods 3.Methodology 3.1DesignSpaceDefinition 3.2LoadandBoundaryConditions 3.3TopologyOptimization 3.4Post-Processing 4.CaseStudy 4.1ProblemDefinition 4.2OptimizationProcess 4.3ResultsandDiscussion 5.AnalysisandDiscussion 5.1ComparisonwithTraditionalDesigns 5.2SensitivityAnalysis 5.3ManufacturingConsiderations 6.Conclusion 6.1Summary 6.2ResearchFindings 6.3FutureDirections 7.References 1.Introduction 1.1Background Structuralcomponents,suchascaststeelnodes,playacrucialroleinsteelstructures.Thesenodesnotonlyserveasconnectionsbutalsocontributetotheoverallstiffnessandstrengthofthestructure.However,theoptimizationdesignofcaststeelnodesisachallengingtaskduetothecomplexgeometricconfigurations,manufacturingconstraints,andtheneedforhigh-performancestructuralperformance. 1.2ResearchObjectives Themainobjectiveofthisresearchistoproposeanoveloptimizationdesignmethodforcaststeelnodesbasedontopologyoptimization.Themeth