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Structural and Multidisciplinary Optimization

Erschienen in:

07.01.2021 | Research Paper

Topology optimization of compliant mechanisms and structures subjected to design-dependent pressure loadings

verfasst von: Yifu Lu, Liyong Tong

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 4/2021

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Abstract

This article presents an extended algorithm for topology optimization of compliant mechanisms and structures with design-dependent pressure loadings using the moving iso-surface threshold (MIST) method. In this algorithm, the fluid-structure interface is modeled using the finite element method via considering equivalent virtual strain energy and work and is tracked by an element-based searching scheme. Design-dependent pressure loads are directly applied on interface boundary and are calculated as virtual work equivalent nodal forces in the interface elements based on the finite element formulation. Several numerical examples are presented for topology optimization of mean compliance and compliant mechanisms. The present algorithm is validated through benchmarking with the results in literature and/or full finite element analysis (FEA) results of the optimum compliant mechanism and structure designs.

Vorheriger Artikel Topology optimization of shape memory polymer structures with programmable morphology

Nächster Artikel Bayesian topology optimization for efficient design of origami folding structures

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Titel: Topology optimization of compliant mechanisms and structures subjected to design-dependent pressure loadings
verfasst von: Yifu Lu
Liyong Tong
Publikationsdatum: 07.01.2021
Verlag: Springer Berlin Heidelberg
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 4/2021
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-020-02786-y

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