Automotive noise attenuating trim part
作者： Marco Seppi , Claudio Bertolini , Claudio Castagnetti
DOI:
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摘要: A sound attenuating trim part, including at least one insulating area with an acoustic mass-spring characteristics having a mass layer and decoupling adjacent to the layer, whereby consists of porous fibrous barrier being located between all layers are laminated together, in has adjusted dynamic Young's modulus (Pa) such that radiation frequency is 3000 (Hz).
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