Topology optimisation techniques

Abstract

This chapter presents topology optimisation techniques suitable for designing parts that will be produced by additive manufacturing, with special attention to precision aspects. First, challenges associated with ‘design for additive manufacturing’ are briefly discussed. Next, an introduction to density-based topology optimisation is given. Specific additive manufacturing limitations relevant for high-technology precision parts are summarised and topology optimisation methods which address these limitations are described. Specifically, critical overhang elimination, overheating prevention and distortion reduction are considered. The industrial relevance of these additive manufacturing–friendly topology optimisation methods are demonstrated through case studies. Finally, an outlook on the current research trends is given and challenges ahead are highlighted.