Publication:
An efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping method

dc.contributor.authorŞimşek, Uğur
dc.contributor.authorÖzdemir, Mirhan
dc.contributor.authorŞendur, Polat
dc.contributor.departmentMechanical Engineering
dc.contributor.ozuauthorŞENDUR, Polat
dc.date.accessioned2022-09-07T13:00:22Z
dc.date.available2022-09-07T13:00:22Z
dc.date.issued2021-11-15
dc.description.abstractIn this paper, a novel Free-size Optimization based Graded Lattice Generation (FOGLG) method, that generates the functionally graded lattice (FGL) structures using free-size optimization, is proposed. In addition, the reconstruction method suitable for the construction of 3D FGL structures using Additive Manufacturing (AM) is presented. The proposed method employs the thickness information of each shell element obtained from a free-size optimization algorithm to determine the relative element densities, which collectively represent the set of design parameters. An additive manufacturing compatible mapping method of generating FGLs from 2D free-size optimization results is also proposed. The efficiency of the FOGLG was compared to the existing homogenization-based optimization (HMTO) and size optimization algorithms. The objective function of the three optimization strategies targets to minimize the total acceleration spectrum in the frequency range of interest. The effectiveness and validity of this new design method was also demonstrated from laser vibrometer measurements. The results show that the FOGLG reduces the overall acceleration spectrum by 3.6% and 19.4% compared to the HMTO and size optimization algorithms, respectively. High correlation between the numerical and experimental results validates the effectiveness of the proposed algorithm.en_US
dc.identifier.doi10.1016/j.matdes.2021.110039en_US
dc.identifier.issn0264-1275en_US
dc.identifier.scopus2-s2.0-85112739015
dc.identifier.urihttp://hdl.handle.net/10679/7842
dc.identifier.urihttps://doi.org/10.1016/j.matdes.2021.110039
dc.identifier.volume210en_US
dc.identifier.wos000709139300004
dc.language.isoengen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.publisherElsevieren_US
dc.relation.ispartofMaterials & Design
dc.relation.publicationcategoryInternational Refereed Journal
dc.rightsrestrictedAccess
dc.subject.keywordsAdditive manufacturingen_US
dc.subject.keywordsDouble gyroiden_US
dc.subject.keywordsFrequency responseen_US
dc.subject.keywordsFunctionally graded lattice structuresen_US
dc.subject.keywordsModal testingen_US
dc.subject.keywordsOptimizationen_US
dc.titleAn efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping methoden_US
dc.typearticleen_US
dspace.entity.typePublication
relation.isOrgUnitOfPublicationdaa77406-1417-4308-b110-2625bf3b3dd7
relation.isOrgUnitOfPublication.latestForDiscoverydaa77406-1417-4308-b110-2625bf3b3dd7

Files

License bundle

Now showing 1 - 1 of 1
Placeholder
Name:
license.txt
Size:
1.45 KB
Format:
Item-specific license agreed upon to submission
Description: