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) Comparison among the absorptances for three core positions. The dot–dashed line, the dashed line, and the solid line represent positions 1, 2, and 3, respectively. (b) Valid absorption (with absorptance above 0.8) frequency band (VAFB) varying with longitudinal eccentricity e .