Fig. 5: Dynamic modeling and validation of a host polygonal plate combined with a 2D ρ-ABH-DVA.
From: Deep-subwavelength ultra-low and ultra-broadband acoustic-black-hole metamaterials

a Schematic diagrams of the combined system. b Validation of eigenfrequencies and relative errors against FEM. c Loss factors of conventional 2D h-ABH-DVA, host plate, and their combined system. d Loss factors of 2D ρ-ABH-DVA, host plate, and their combined system.