{"title":"Optimizing lightweight lattice structures through integrated parameterized design and fiber-reinforced additive manufacturing","authors":"","doi":"10.1016/j.cirp.2024.04.005","DOIUrl":null,"url":null,"abstract":"<div><p>Lattice structures offer advantages in load-bearing applications in terms of structural efficiency and strength-to-weight ratio. Previous structure optimization methods were mainly based on discretized structures without incorporating manufacturing capabilities, thus ad-hoc treatments or redesigns were required to enable fabrication. This paper presents a ‘rotation vector’ based method that parameterizes lattice structures and directly generates curved printing paths, which is particularly suitable for multi-axis additive manufacturing using fiber-reinforced filaments. The proposed method simultaneously considers structure-stress alignment and layer-wise fabrication to achieve optimized design with enhanced strength-to-weight ratio, which is parametrically adaptable to different printing configurations and infill densities.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 89-92"},"PeriodicalIF":3.2000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cirp Annals-Manufacturing Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0007850624000179","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, INDUSTRIAL","Score":null,"Total":0}
引用次数: 0
Abstract
Lattice structures offer advantages in load-bearing applications in terms of structural efficiency and strength-to-weight ratio. Previous structure optimization methods were mainly based on discretized structures without incorporating manufacturing capabilities, thus ad-hoc treatments or redesigns were required to enable fabrication. This paper presents a ‘rotation vector’ based method that parameterizes lattice structures and directly generates curved printing paths, which is particularly suitable for multi-axis additive manufacturing using fiber-reinforced filaments. The proposed method simultaneously considers structure-stress alignment and layer-wise fabrication to achieve optimized design with enhanced strength-to-weight ratio, which is parametrically adaptable to different printing configurations and infill densities.
期刊介绍：
CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems.
This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include:
Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.
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