Sound Transmission Loss Analysis of an Automotive Dash by Finite Element Method

Kin. L. Hong; S. T. Raveendra

doi:10.4271/2003-01-1613

2003-05-05

Sound Transmission Loss Analysis of an Automotive Dash by Finite Element Method 2003-01-1613

The acoustical performance of a vehicle dash system is determined by computing the sound transmission loss (STL) in the diffuse field. The determination of the sound transmission loss of the dash system is usually performed in the test laboratory with the anechoic chamber on the transmission side of the dash. Computational modeling of such system poses challenge due to the complexity of the material properties as well as geometry. In this paper, the transmission loss of a vehicle dash is calculated by using Finite element method. The dash system considered is a multilayer system consisting of elastic porous and elastic structural materials. The effects of different design parameters on the dash STL are investigated.

SAE MOBILUS

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

Access SAE MOBILUS »

Digital $35.00 Print $35.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Sound Transmission Loss Analysis of an Automotive Dash by Finite Element Method 2003-01-1613

SAE MOBILUS