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Acoustical Performance Testing of Automotive Weatherseals
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English
Abstract
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.
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Citation
Saha, P. and Kolano, R., "Acoustical Performance Testing of Automotive Weatherseals," SAE Technical Paper 931270, 1993, https://doi.org/10.4271/931270.Also In
References
- Buchheim, R. Dobrzynski, W. Mankau, H. Schwabe, D. “Vehicle Interior Noise Related to External Aerodynamics” Int. J. Vehicle Design, Special Publication SP3 1983 197 209
- Saha, P. Chahine, J. Internal Project Files Kolano and Saha Engineers, Inc.
- Society of Automotive Engineers Recommended Practice J1400 “Laboratory Measurement of the Airborne Sound Barrier Performance of Automotive Materials and Assemblies’!
- American Society for Testing Material (ASTM) Designation E90 “Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions’!