Browse Publications Technical Papers 2019-01-1482
2019-06-05

Development of a Muffler Insertion Loss Flow Rig 2019-01-1482

Bench tests are an important step to developing mufflers that perform adequately with acceptable pressure drop. Though the transmission loss of a muffler without flow is relatively simple to obtain using the two-load method, the presence of mean flow modifies the muffler behavior. The development of an insertion loss test rig is detailed. A blower produces the flow, and a silencer quiets the flow. Acoustic excitation is provided by a loudspeaker cluster right before the test muffler. The measurement platform allows for the measurement of flow-induced noise in the muffler. Also, the insertion loss of the muffler can be determined, and this capability was validated by comparison to a one-dimensional plane wave model.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A Direct Comparison between Numerical and Experimental Results for Airborne Noise Levels in Automotive Transmission Rattle

2014-01-1756

View Details

JOURNAL ARTICLE

Acoustic Attenuation Performance Analysis of Three-pass Perforated Tube Muffler with End-resonator

2008-01-0894

View Details

TECHNICAL PAPER

Contribution of Sound to Perception of CVT Performance

2006-01-0813

View Details

X