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Automated Derivation of CAD Designs from Topology Optimization Results

Gomes Alves, Christian und Barthel, Yannick und Halsner, Matthias (2022) Automated Derivation of CAD Designs from Topology Optimization Results. In: World Congress on Railway Research (WCRR) 2022. World Congress on Railway Research 2022, 06.-10. Jun 2022, Birmingham, UK.

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Kurzfassung

Topology optimizations are gaining track in many development processes, especially in designing large structural components such as railway car bodies. This paper proposes an automatic process to derive design proposals from SIMP topology optimization results in early product development stages. The topologies are interpreted as truss-like structures in order to be modelled using beam elements in FE or CAD applications. In a first step, a wireframe is extracted by using a voxelization approach with subsequent skeletonization and junction identification using flood-fill algorithms. The wireframe can already be used as a basis for a parametric CAD design since it follows the topology optimization result closely. In order to extrude beam sections along the wireframe axes, cross sections are extracted from the topology optimization result. This is done by first matching the geometric outline of a topology branch to basic shapes such as rectangles. These shapes are refined by identifying the load case of each branch which is achieved by evaluating the stress distributions in a branch of the topology optimization. The consolidated result is a model consisting of beam elements which can further be processed in an FE or CAD application. The process enables a faster design exploration in the early product development process with the goal of achieving lightweight designs.

elib-URL des Eintrags:https://elib.dlr.de/148477/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Automated Derivation of CAD Designs from Topology Optimization Results
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Gomes Alves, ChristianChristian.GomesAlves (at) dlr.dehttps://orcid.org/0000-0002-0897-6951138359022
Barthel, YannickDLR e.V.NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Halsner, MatthiasDLR e.V.NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2022
Erschienen in:World Congress on Railway Research (WCRR) 2022
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Topologieoptimierung, Automatisierung, Wagenkasten automation; topology optimization; virtual product development process
Veranstaltungstitel:World Congress on Railway Research 2022
Veranstaltungsort:Birmingham, UK
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:06.-10. Jun 2022
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Schienenverkehr
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V SC Schienenverkehr
DLR - Teilgebiet (Projekt, Vorhaben):V - NGT BIT (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Fahrzeugkonzepte > Fahrzeugarchitekturen und Leichtbaukonzepte
Hinterlegt von: Gomes Alves, Christian
Hinterlegt am:04 Aug 2022 13:19
Letzte Änderung:10 Jul 2023 08:20

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