Sound Transmission Loss of Thick Perforated Panels

Chen, K. T.; Jan, S. H.

doi:10.1260/1351010011501722

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…In order to validate the results of airborne sound insulation obtained for the tests carried out in the reduced sized transmission chamber, they were compared with results obtained in standard transmission chambers and the theoretical results obtained through simulation with Aisla 3 prediction software [62]. This simulation software is based on the predictive models of acoustic insulation described by Ookura & Saito and Chen & Jan [63,64] based on impedance coupling with known mechanical data of the materials (elastic module, loss factor, thickness, and density). Figure 5 shows the sound reduction index (R) obtained by the different methods described above.…”

Section: Acoustic Validation Of the Reduced Sized Transmission Chambermentioning

confidence: 99%

Characterization of New Sustainable Acoustic Solutions in a Reduced Sized Transmission Chamber

et al. 2019

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In order to assess the airborne sound insulation of a new material or building solution, access to standardized laboratories, large and expensive facilities, and a sample area of at least 10 m2 are required. At the research and development stages of new sustainable acoustic materials for construction, it is not easy to make large sample areas available. Moreover, the financial investment in acoustic testing of materials during the research stage in standardized laboratories is excessive. In this work, the assessment of the airborne sound insulation of multi-layer partitions designed with new sustainable materials is presented. The assessed solutions are formed by green composite fiber boards as lightweight elements and a new material designed from sheep wool as absorbent material. The results of these 100% recyclable solutions are compared with lightweight element based solutions, which are commonly used for acoustic insulation. Characterization of those new sustainable solutions for building is leveraged in a reduced sized transmission chamber. The design, construction, and validation of this kind of laboratory are provided. This laboratory enables the assessment of the airborne sound insulation of a material in its research stage.

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Section: Acoustic Validation Of the Reduced Sized Transmission Chambermentioning

confidence: 99%