Effects of core position of locally resonant scatterers on low-frequency acoustic absorption in viscoelastic panel

Zhong Jie, Wen Ji-Hong†, Zhao Hong-Gang, Yin Jian-Fei, Yang Hai-Bin

(a) Cross section of one LRS unit, i.e., a heavy core with radius r _c and an eccentrically coated rubber layer with outer radius r _s and a longitudinal eccentricity e . (b) Schematic diagram of the absorption structure and steel backing. (c) Schematic description of one Bloch unit cell.