The Effect of Edge Constraints on the Measurement of Automotive Sound Package Materials Using a Tube Apparatus Sound Answers, Incorporated

Format:

Conference/Event

Author/Creator:

Green, Green, author.

Contributor:

Frey, Andrea

Conference Name:

SAE 2013 Noise and Vibration Conference and Exhibition (2013-05-20 : Grand Rapids, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

Using a tube apparatus, sound transmission loss measurements can be performed per ASTM E2611-09. Usually the intent of these measurements is to determine the sound transmission of an infinite sheet of material (id est the one-dimensional (1D) absorption) of a specific thickness. These results are used in simple room acoustics models and in finite element models. The tube measures the sound transmission loss of a round sample constrained within a tube which, due to edge constraint, can be quite different from the 1D transmission loss. This same issue is seen when measuring the sound absorption of material samples. The edge constraint effect is examined for automotive materials (sheet metal and vinyl barrier material) measured in a tube configured to measure transmission loss, and alternate mounting methods are investigated. The results are compared to theoretical results

Notes:

Vendor supplied data

Publisher Number:

2013-01-1942

Access Restriction:

Restricted for use by site license