Analytic Formulation for the Sound Absorption of a Panel Absorber under the Effects of Microperforation, Air Pumping, Linear Vibration and Nonlinear Vibration
Figure 7
(a) The absorption peaks due to the (1,1) and (1,3) mode vibrations (low to high frequency excitation, mm, m, mm, and ). (b) The vibration peaks due to the (1,1) and (1,3) mode vibrations (low to high frequency excitation, mm, m, mm, and ).