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The Influence of Structural Parameters on The Sound Absorption Performance of Micro Perforated Absorber

机译:结构参数对微穿孔吸收剂吸声性能的影响

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The sound absorption performance of MPA (micro perforated absorber) mainly depends on its structural parameters. Reasonable parameter combination will get a high absorption coefficient. In this paper numerical simulation was used to study sound absorption performance. By this means, the influence of the different parameters on the sound absorption performance are discovered. To verify the result of numerical simulation, MPA samples are fabricated using optimized parameters by laser machining method. The sound absorption performances of these samples are tested and the experimental result is consistent with that of numerical simulation.
机译:MPa(微穿孔吸收器)的吸音性能主要取决于其结构参数。合理的参数组合将获得高吸收系数。在本文中,使用数值模拟来研究吸音性能。通过这种方式,发现了不同参数对吸音性能的影响。为了验证数值模拟的结果,通过激光加工方法使用优化参数来制造MPA样品。测试这些样品的吸音性能,并且实验结果与数值模拟的实验结果一致。

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