Optimization of a diffuser geometry using parametric modeling tools and finite-difference time-domain simulations

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMeyer, Julieen_US
dc.contributor.authorLokki, Tapioen_US
dc.contributor.departmentDepartment of Computer Scienceen
dc.contributor.groupauthorLokki Tapio groupen
dc.date.accessioned2018-11-09T13:08:11Z
dc.date.available2018-11-09T13:08:11Z
dc.date.issued2018-10-05en_US
dc.description| openaire: EC/H2020/721536/EU//Acoutect
dc.description.abstractThis paper presents an approach for optimizing a diffuser geometry using parametric modeling tools and finite-difference time-domain (FDTD) acoustic simulations. Geometries are automatically generated based on a set of parameters using the modeling software Rhinoceros and its tightly integrated graphical algorithm editor Grasshopper. Scattered polar responses are then predicted using room acoustic FDTD simulations. The simulation results are analyzed in terms of the uniformity of the scattering produced by the diffusing surface. Finally, an optimization algorithm is used to define a new set of geometry parameters at each iteration. The entire process iterates until reaching the most uniform scattered polar distribution across all receiver and source positions. Such an approach can be used to facilitate and speed up the design process of diffusers that can provide a good trade-off between performance and relatively simple geometry.en
dc.description.versionNon peer revieweden
dc.format.extent638-645
dc.identifier.citationMeyer, J & Lokki, T 2018, Optimization of a diffuser geometry using parametric modeling tools and finite-difference time-domain simulations . in Auditorium Acoustics 2018 . Proceedings of the Institute of Acoustics, no. 3, vol. 40, Institute of Acoustics, pp. 638-645, Auditorium Acoustics, Hamburg, Hamburg, Germany, 04/10/2018 .en
dc.identifier.otherPURE UUID: ebbfdb2f-d33b-4356-9c80-1d3078cc8157en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/ebbfdb2f-d33b-4356-9c80-1d3078cc8157en_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/34650
dc.identifier.urnURN:NBN:fi:aalto-201811095691
dc.language.isoenen
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/721536/EU//Acoutecten_US
dc.relation.ispartofAuditorium Acousticsen
dc.rightsclosedAccessen
dc.titleOptimization of a diffuser geometry using parametric modeling tools and finite-difference time-domain simulationsen
dc.typeA4 Artikkeli konferenssijulkaisussafi

Files