Topology optimization of 3D trusses with design feature constraints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F13%3A43920356" target="_blank" >RIV/49777513:23520/13:43920356 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Topology optimization of 3D trusses with design feature constraints

Popis výsledku v původním jazyce

The optimal topology design problem is formulated as the maximization of the truss stiffness while keeping a required mass limit. The truss optimization problem is to find bar volumes (thus their cross-sectional areas) to achieve minimum compliance (theexternal force working) with the total truss volume constraint. In the paper we present the displacement-based reformulation of the truss topology design, for numerical solving we use the semidefinte optimization methods, namely the primary-dual method PBM (penalty-barrier multiplier). As an example we consider 3D trusses with one plane of symmetry and the rigid-body motion constraints. All calculations are performed using an in-house developed code programmed in Matlab. Some technical issues related tobar filtration and treating the singular stiffness matrix in the optimization run are discussed.

Název v anglickém jazyce

Topology optimization of 3D trusses with design feature constraints

Popis výsledku anglicky

The optimal topology design problem is formulated as the maximization of the truss stiffness while keeping a required mass limit. The truss optimization problem is to find bar volumes (thus their cross-sectional areas) to achieve minimum compliance (theexternal force working) with the total truss volume constraint. In the paper we present the displacement-based reformulation of the truss topology design, for numerical solving we use the semidefinte optimization methods, namely the primary-dual method PBM (penalty-barrier multiplier). As an example we consider 3D trusses with one plane of symmetry and the rigid-body motion constraints. All calculations are performed using an in-house developed code programmed in Matlab. Some technical issues related tobar filtration and treating the singular stiffness matrix in the optimization run are discussed.

Druh

O - Ostatní výsledky

CEP obor

JD - Využití počítačů, robotika a její aplikace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů