Development of a New Sound Transmission Test for Automotive Sealant Materials

971896

05/20/1997

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
A new laboratory method has been developed to evaluate the acoustical properties of expandable and other automotive sealants. These materials are used to reduce wind, road, and powertrain noise transmission into passenger compartments. In the new method, ASTM E 1050 absorption measurement equipment is used along with a new sample holder, a downstream microphone holder (providing two additional microphone locations) and an anechoic termination. These additions permit measurement of normal incidence transmission loss as well as absorption. It is intended to encourage adoption of this method as a standard way of quantifying the acoustical performance of sealants and sealing composites in automotive noise control applications.
Meta TagsDetails
DOI
https://doi.org/10.4271/971896
Pages
8
Citation
Bolton, J., Yun, R., Pope, J., and Apfel, D., "Development of a New Sound Transmission Test for Automotive Sealant Materials," SAE Technical Paper 971896, 1997, https://doi.org/10.4271/971896.
Additional Details
Publisher
Published
May 20, 1997
Product Code
971896
Content Type
Technical Paper
Language
English