Design optimisation of the feeding system of a novel counter-gravity casting process

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dc.contributor.authorPapanikolaou, Michail
dc.contributor.authorPagone, Emanuele
dc.contributor.authorGeorgarakis, Konstantinos
dc.contributor.authorRogers, Keith
dc.contributor.authorJolly, Mark R.
dc.contributor.authorSalonitis, Konstantinos
dc.date.accessioned2018-11-13T15:28:28Z
dc.date.available2018-11-13T15:28:28Z
dc.date.issued2018-10-11
dc.description.abstractThe appropriate design of feeders in a rigging system is critical for ensuring efficient compensation for solidification shrinkage, thus eliminating (shrinkage-related) porosity and contributing to the production of superior quality castings. In this study, a multi-objective optimisation framework combined with Computational Fluid Dynamics (CFD) simulations has been introduced to investigate the effect of the feeders’ geometry on shrinkage porosity aiming to optimise casting quality and yield for a novel counter-gravity casting process (CRIMSON). The weighted sum technique was employed to convert this multi-objective optimisation problem to a single objective one. Moreover, an evolutionary multi-objective optimisation algorithm (NSGA-II) has been applied to estimate the trade-off between the objective functions and support decision makers on selecting the optimum solution based on the desired properties of the final casting product and the process characteristics. This study is one of the first attempts to combine CFD simulations with multi-objective optimisation techniques in counter-gravity casting. The obtained results indicate the benefits of applying multi-objective optimisation techniques to casting processesen_UK
dc.identifier.citationMichail Papanikolaou, Emanuele Pagone, Konstantinos Georgarakis, et al., Design optimisation of the feeding system of a novel counter-gravity casting process. Metals, 2018, Volume 8, Issue 10), Article number 817en_UK
dc.identifier.cris21718576
dc.identifier.issn2075-4701
dc.identifier.urihttps://doi.org/10.3390/met8100817
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13633
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectsand castingen_UK
dc.subjectcounter-gravityen_UK
dc.subjectmulti-objective optimisationen_UK
dc.subjectfeeding systemen_UK
dc.titleDesign optimisation of the feeding system of a novel counter-gravity casting processen_UK
dc.typeArticleen_UK

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