Advances in vehicle noise control are leading the automotive industry to place increasing emphasis on weatherseals to block exterior noise. As a result, properly evaluating the acoustical performance of automotive weatherseals is of increasing importance. There is no current specific standard for this testing. Rather, there has been reliance on adaptations of SAE Standard 51400 “Laboratory Measurement of the Airborne Sound Barrier Performance of Automotive Materials and Assemblies” by testing laboratories. However, the 51400 standard addresses testing of flatstock materials and does not readily lend application to pre-formed parts such as weatherseals. For this reason, adaptation of the standard can vary significantly from facility to facility and manufacturer to manufacturer. These differences can be significant and can render comparisons between test results on competing materials very difficult. This paper explores some of the limitations of using SAE J1400 to evaluate weatherseal performances and the likely impact of these limitations on test results. It also offers some considerations on developing a test procedure for an appropriate standard for evaluating weatherseals.
Acoustical Performance Testing of Automotive Weatherseals
Sae Technical Papers
Noise & Vibration Conference & Exposition ; 1993
1993-05-01
Conference paper
English
Acoustical performance testing of automotive weatherseals
Automotive engineering | 1993
|Weatherseals in automotive applications
Engineering Index Backfile | 1955
|WEATHERSEALS IN AUTOMOTIVE APPLICATIONS
SAE Technical Papers | 1955
|TPV sponge materials and foaming systems for dynamic automotive weatherseals
Tema Archive | 2005
|Developing a Small Sample Facility for Testing Automotive Acoustical Materials at Low Frequencies
Automotive engineering | 1982
|