Post-processing feature-mapping topology optimisation designs towards feature-based CAD processing

T. Shannon*, T.T Robinson, A. Murphy, C. G. Armstrong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Feature-mapping (FM) optimisation frameworks have received much attention for structural topology optimisation with explicit geometric parameters. This paper presents a methodology for constructing parametric feature-based CAD models from designs generated using Moving Morphable Components (MMC). Emphasis is placed on constructing feature-based CAD models that conform to conventional modelling practices, where individual parameterised features are modelled using feature templates and united through Boolean union operations. This involves the use of algorithms to facilitate feature clean-up and identify connexions between features. The progression through several examples demonstrates how the developed algorithms can realise a feature-based CAD model from the results of an FM optimisation. Integration with a commercial CAD system provides a wide range of modelling capabilities to the designer for downstream design tasks.

Original languageEnglish
Article number238
Number of pages20
JournalStructural and Multidisciplinary Optimization
Volume66
Issue number11
DOIs
Publication statusPublished - Nov 2023

Keywords

  • Feature-based modelling
  • Topology optimisation
  • Feature-mapping
  • Parametric geometry
  • CAD model

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