On Muffler Design for Transmitted Noise Reduction

Yıl 2018, Cilt: 7 Sayı: 2, 13 - 21, 28.08.2018

Hakan Arslan Mostafa Ranjbar Burak Dalkılıç Emin Çalık Cem Arslan

Öz

This paper is the
results of an undergraduate final term project. The aim of project was to
investigate the passive noise reduction methods in mufflers. Also, another aim
of this study is to examine and design mufflers with various geometries. This
is learning the effect of geometry on noise transmission loss maximization
performance of mufflers. Four-pole method is used to determine the noise
transmission loss. Two different cross-sectional geometries are considered for
the mufflers, i.e. rectangular and circular. These mufflers are produced and
tested. A noise transmission test bench is used for the measurement of noise
transmission loss of these mufflers. The analytical results from simulation are
compared with the experimental results. The effect of geometry of mufflers on
the maximization of the transmitted noise loss are investigated and reported.
The results of this study can help students to learn the basics of muffler
design for noise reduction applications. Furthermore, it shows the effect of
geometry on the acoustic performance of mufflers.

Anahtar Kelimeler

Muffler, Noise Reduction Loss Maximization, Design, Production

Kaynakça

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