%0 Journal Article %T Calculation of Acoustic Efficiency of Exhaust Silencers for Automotive Internal Combustion Engines %A Tupov, V.V. %A Matasova, O.Y. %K engine’s exhaust noise, silencer, insertion losses, impedance for sound emission by hole, end hole’s reflection coefficient modulus, end hole’s attached length, exhaust noise source internal impedance, engine’s exhaust manifold, manifold acoustics impedance %J Safety in Technosphere %D 2020 %N 9 %P 6 %I INFRA-M Academic Publishing LLC.