Measurement of Airborne Noise Reduction of Production Door Components on a Buck 931269

Various automobile door components were evaluated for air-borne noise reduction using production and prototype door assemblies which were modified to fit an SAE J-1400 test fixture. The in-door laboratory evaluation provided a single noise reduction rating in decibels for diverse door assembly components, with different noise reduction mechanisms. This test method overcame some of the shortcomings associated with evaluating each component individually in accordance with an acoustical material test standard.


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