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Micro-perforated panel (MPP) has been widely used in the noise control field. However, the performance at low frequencies is relatively poor due to the restricted space limitations in actual applications. Hence in this paper a flexible micro-perforated panel absorber (PVDF-MPPA) based on Polyvinylidene fluoride (PVDF) piezoelectric film is proposed, which is composed of a perforated aluminum-electrode...
Micro-perforated panel (MPP) absorber has been widely used in noise reduction and is regarded as a promising alternative to the traditional porous materials. However, the absorption bandwidth of a single MPP is always insufficient to compete with the porous materials. Thus its practical application such as interior finish of room walls which has strict restrictions on space is prevented. According...
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