Sound absorption coefficient optimization of gradient sintered metal fiber felts

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sintered 金属纤维毡被介绍的为坡度(multi-layered ) 的健全吸收的一个优化方法。自从它仅仅要求三个关键词法参数,理论模型基于动态流动抵抗力被选择计算 sintered 金属纤维毡的健全吸收系数:纤维直径,孔和层厚度。模型预言与试验性的大小同意很好。客观功能和限制条件然后被设置独立在金属纤维优化孔,纤维直径和纤维直径的分发。为唯一的频率或一个预先指定的频率范围的优化问题用一个基因算法方法被解决。声学的表演比较在之间优化,非优化的金属纤维被介绍证实优化方法的有效性。当紧限制被放在吸收允许
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