title: Tunable Digital Metamaterial for Broadband Vibration Isolation at Low Frequency.
abstract: A 3D-printed digital metamaterial embedded with electromagnets is fabricated. Switching electromagnets between the attaching (1 bit) and detaching (0 bit) modes activates different waveguides in the metamaterial. The underlying mechanism is investigated theoretically and experimentally. The hierarchical assemblies of unit cells, mimicking digital bits, allow programmable broadening of the bandgap of the metamaterial.
authors.affiliation: School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Ziwei
authors.initials: Z
authors.lastname: Wang
authors.affiliation: School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Quan
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
authors.affiliation: School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Gengkai
authors.initials: G
authors.lastname: Hu
keywords: 3D-printing technologies; digital metamaterials; local resonances; tunable; vibration isolations