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首页> 外文期刊>The Journal of the Acoustical Society of America >Optimization on microlattice materials for sound absorption by an integrated transfer matrix method
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Optimization on microlattice materials for sound absorption by an integrated transfer matrix method

机译:集成传递矩阵法优化微晶格材料的吸声性能

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摘要

Materials with well-defined microlattice structures are super-light, stable, and thus bear great potential in sound absorption. An integrated transfer matrix method (TMM) is proposed to evaluate the sound absorbing efficiency of these lattice materials, in which a massive number of micropores are densely placed. A comparison between integrated TMM and conventional TMM reveals that the proposed approach offers better predictions on sound absorption of microlattice. This approach is then employed to optimize the microlattice material to determine the best pore and porosity that lead to maximum absorbing efficiency capability and minimum required thickness to attain a target sound absorption. (C) 2015 Acoustical Society of America
机译:具有明确的微晶格结构的材料超轻,稳定,因此在吸声方面具有巨大潜力。提出了一种集成传递矩阵法(TMM)来评估这些网格材料的吸声效率,其中大量微孔被密集放置。集成TMM和常规TMM之间的比较表明,所提出的方法对微晶格的吸声提供了更好的预测。然后采用这种方法来优化微晶格材料,以确定最佳的孔隙和孔隙率,从而获得最大的吸收效率,并获得达到目标吸声所需的最小厚度。 (C)2015美国声学学会

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