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2019 | OriginalPaper | Buchkapitel

Combined Length Scale and Overhang Angle Control in Minimum Compliance Topology Optimization for Additive Manufacturing

verfasst von : Jeroen Pellens, Geert Lombaert, Boyan Lazarov, Mattias Schevenels

Erschienen in: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization

Verlag: Springer International Publishing

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Abstract

This paper focusses on topology optimization for additive manufacturing. Two manufacturing constraints are considered: minimum length scale and maximum overhang angle. The first is needed to ensure that the condition on minimal printable feature sizes is satisfied, while the second eliminates the need for a temporary support structure. Filtering schemes have been proposed in the literature to ensure either a minimum length scale or a maximum overhang angle, but not both simultaneously. In this paper, it is shown that both constraints cannot simultaneously be met by simply applying both filters sequentially, as the effect of the first filter is destroyed by the second. A new, slightly more complex filtering scheme is therefore proposed, which does allow simultaneous control over length scale and overhang angle in a minimum compliance topology optimization problem. The method is successfully applied to a 2D benchmark problem.

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Vorheriges Kapitel Optimal Control of Phytoremediation Techniques for Heavy Metals Removal in Shallow Water

Nächstes Kapitel A Flexible Overhang Constraint for Topology Optimization of Compliant Mechanisms. Advantages of Controlling the Additive Manufacturability/Performance Ratio

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Titel: Combined Length Scale and Overhang Angle Control in Minimum Compliance Topology Optimization for Additive Manufacturing
verfasst von: Jeroen Pellens
Geert Lombaert
Boyan Lazarov
Mattias Schevenels
Verlag: Springer International Publishing
Buch: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
Print ISBN: 978-3-319-97772-0

Electronic ISBN: 978-3-319-97773-7

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-319-97773-7_33

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