Tunable bandgaps and acoustic characteristics of perforated Miura-ori phononic structures
Xi Zhang, Xiaodong Huang, Guoxing Lu
Abstract
In this study, we introduce a novel perforated Miura-ori phononic structure (PMPS) and investigate the tunability of complete bandgaps or partial bandgaps in specific directions. The validity of the bandgaps was verified against the simulation and experimental measurement of the sound transmission loss of a three-dimensional printed Miura-ori panel. The results reveal that PMPS with different design parameters demonstrates extensive bandgap tunability during deployments and folds. The potential applications of PMPS, such as programmable acoustic waveguides, were also demonstrated. Lightweight PMPSs offer an attractive alternative for designing tunable, programmable and reconfigurable acoustic structures, such as sound waveguides, sound barriers, and broadband wave tailors.