Tunable supra-transmission of a stacked miura-origami basedmeta-structure  

作　　者：Qiwei Zhang Hongbin Fang 

机构地区：[1]Yiwu Research Institute,Fudan University,Yiwu 322000,China [2]Institute of AI and Robotics,Fudan University,Shanghai 200433,China

出　　处：《Theoretical & Applied Mechanics Letters》2024年第6期432-440,共9页力学快报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12272096 and 11932015);the Shanghai Pilot Program for Basic Research-Fudan University(Grant No.21TQ1400100-22TQ009).

摘　　要：The origami-based meta-structure has wide application in areas such as energy and wave transmission.Existingresearch has demonstrated the occurrence of supra-transmission in origami meta-structures and revealed its underlying mechanism.However,studies on how to regulate the phenomenon of supra-transmission are still verylimited.In this work,we choose the meta-structure composed of stacked Miura-ori(SMO)as the subject.TheSMO unit possesses two topologically distinct stable configurations,enabling the meta-structure to possess a richvariety of periodic layouts.Based on the established equivalent dynamic model of the SMO-based meta-structure,we employ numerical simulation methods and find that the supra-transmission threshold could be adjusted bytuning the periodic layout of the meta-structure.Furthermore,the probability of supra-transmission is also highlydependent on the periodic layout.Increasing the number of SMO units under the bulged-out configuration in eachperiodic layout decreases the likelihood of supratransmission occurring.The findings of this study yield an extensive array of foundational insights into the wave dynamics of origami structures.Furthermore,these insightstranslate into practical guidelines for designing origami-based meta-structure with tunable and programmabledynamic characteristics.

关 键 词：ORIGAMI Wave dynamic Bi-stability 

分 类 号：G63[文化科学—教育学]