Below is an automotive muffler, determine the overall transmission loss from 65Hz - 4000Hz
Posted: Sat May 21, 2022 9:51 am
Below is an automotive muffler, determine the overall
transmission loss from 65Hz - 4000Hz
L=0.2 m L=0.3 m L=0.45 m L=0.6 m, D=2 in L=0.35 m L=0.7 m, D=4 in Lined Duct, L=0.7 m, D=2.5 in, Absorption coeff.in the table below 500 1,000 2,000 4,000 0.70 0.81 0.86 0.85 f(Hz) 63 0.08 125 0.11 250 0.34 a
transmission loss from 65Hz - 4000Hz
L=0.2 m L=0.3 m L=0.45 m L=0.6 m, D=2 in L=0.35 m L=0.7 m, D=4 in Lined Duct, L=0.7 m, D=2.5 in, Absorption coeff.in the table below 500 1,000 2,000 4,000 0.70 0.81 0.86 0.85 f(Hz) 63 0.08 125 0.11 250 0.34 a