Proposition and design of a new Micro-Architected Domes family:A biomimicry-based approach  

作　　者：Nadir Rihani Iatimad Akhrif Mostapha El Jai 

机构地区：[1]Euromed Polytechnic School,Euromed Center of Research,Euromed University of Fes,Fes,Morocco [2]Mechanic,Mechatronic and Command Laboratory,ENSAM-Meknes,Moulay Ismail University,Meknes,Morocco

出　　处：《Frontiers of Architectural Research》2024年第3期650-667,共18页建筑学研究前沿（英文版）

基　　金：The authors would like to thank Ecole Nationale Superieure d’Arts&Metiers de Meknes,Moulay Ismail University,Morocco for providing Ansys SpaceClaim R21.Many thanks also to Euromed Center of Research,Euromed University of Fes,Morocco for the availability of Matlab(2022)that allowed performing all the numerical computations,as well as the access to the VOLUMIC Stream 30 Ultra 3D printer for MAD prototyping.

摘　　要：In the last decade,micro-architected structures have gained significant attention in academia and industry for their lightweight,strong,and thermally efficient properties.Inspired by biomimicry design,this paper presents a novel ribbed family of additively manufactured Micro-Architected Domes(MAD).The design incorporates tetrapod pyramid unit cells,golden ratio-based fractal patterns,Schoen’s Minimal Gyroid,and spherical geometry.The study focuses on dome radius,height,and azimuth/elevation partitioning as input variables,with the main output being ribbed micro-cell diameter.The relationships between unit-cells’diameter and input variables were established through problem-solving and numerical computations:linear dependency with the dome radius and hyperbolic dependency with the azimuth and elevation partitioning.The proposed design successfully adhered to the Surface-to-Volume ratio of Schoen’s Minimal Gyroid,achieving an average volume relative density of 2.5%,confirming its lightweight nature.The feasibility of the design was further supported by fabricating three specimens using Filament Fused Fabrication.This research showcases the potential of biomimicry-inspired micro-architected structures,paving the way for innovative applications in various fields.

关 键 词：Micro-architected structures DOMES Biomimicry Mathematical design Optimization Fractal decomposition 

分 类 号：TU318[建筑科学—结构工程]