Browse Publications Technical Papers 2009-32-0015

On Experimental Techniques to Determine Acoustic Performance of Small Exhaust Silencers 2009-32-0015

In this paper the acoustic performance of silencers has been investigated. The experimental techniques to study the attenuation of a silencer are in focus. A novel test procedure has been described and used to determine the sound transmission through the silencers in hot mean flow conditions. The experiments have been carried out on two motorcycle engine silencers with different design. The results analyzed and discussed clearly present the influence of the induct flow conditions on the sound transmission loss of the silencer.


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