▎ 摘　　要

NOVELTY - A multi-layer cylindrical three-dimensional five-mode super-structural material has face-centered cubic lattice structure as periodic lattice structure form. The face-centered cubic lattice structure comprises 16 base element units connected at a narrow diameter. The cell length of the face-centered cubic lattice structure is 'a', and the length of each primitive base element structure comprises 6 cylinders. USE - Multi-layer cylindrical three-dimensional five-mode super-structural material for underwater acoustic wave low-frequency broadband control, acoustic stealth, vibration reduction and noise reduction, and earthquake protection applications. ADVANTAGE - The multi-layer cylindrical three-dimensional five-mode super-structural material has excellent five-mode characteristics and low frequency of complete phonon band gap by adjusting the primitive structural parameters, and has improved structural stability by adopting cylinder instead of biconical element used in existing five-mode super-structure material.