Topology optimization of geometrically nonlinear trusses with spurious eigenmodes control

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• 作者：Lei Li^a ; Kapil Khandelwal^b ; ^{kapil.khandelwal@nd.edu}
• 关键词：Truss topology optimization ; Geometric nonlinearity ; Critical load constraint ; Spurious eigen-modes ; Nonlinear systems
• 刊名：Engineering Structures
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：131
• 期：Complete
• 页码：324-344
• 全文大小：3761 K
• 卷排序：131

文摘

Topology optimization of geometrically nonlinear trusses is presented. Stability constraints are considered to ensure the stability of final topologies. A spurious eigenmode identification method is presented for nonlinear trusses. Effectiveness of the proposed approaches for handling stability issues is verified.