Composite Covers for Noise Attenuation

Paper #:
  • 970078

Published:
  • 1997-02-24
Citation:
Sattler, E., "Composite Covers for Noise Attenuation," SAE Technical Paper 970078, 1997, https://doi.org/10.4271/970078.
Author(s):
Pages:
25
Abstract:
Plastic parts have been proliferating the underhood environment for mass and cost savings. Noise control can become an issue with these parts. A noise cover can solve these problems. Data in this paper demonstrate the acoustical absorption capabilities of a nylon 6 / foam composite cover. Using these data, it becomes possible to predict the amount of attenuation using various thickness' of open-cell foam and nylon 6. The three most important factors to use when designing a new cover are acoustical absorption, transmission loss, and percentage of acoustical leakage around the cover or barrier.
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