Published By: Blue Eyes Intelligence Engineering

Abstract — This paper emphasizes the role of resonator on transmission loss in air intake system and its sound pressure level reduction. The intake noise of an automobile induced by firing of an engine accompanies acoustic resonance of ducts of an intake system. Conventionally, the adoption of an integrated type resonator was one of possible ways to eliminate the booming noise due to acoustic resonances of air ducts. Although the Helmholtz type resonator is convenient to attenuate the intake noise of an automobile, the usage of the Helmholtz type resonator requires cost increase or big engine room space. Index Terms — Air intake system, Resonator, Acoustic