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通过用驻波管法分别对金属纤维不同厚度的吸声系数、护面板在不同穿孔率时的吸声系数和金属纤维加护面板结构吸声系数的测试分析表明，金属纤维不但是一种吸声性能优良的新型吸声材料，尤其中高频性能更优，而且抗恶劣工作条件能力较强。采用穿孔护面板的金属纤维吸声结构，不但可以提高金属纤维材料使用寿命，而且可进一步提高低频吸声能力。合理设计护面板的结构参数，可满足不同吸声频段的需要。
Through the use of standing wave tube method of different thickness of the metal fiber sound absorption coefficient, the protective panel at different perforated rate of sound absorption coefficient and the metal fiber reinforced panel structure of the sound absorption coefficient test analysis shows that the metal fiber is not only a kind of suction Acoustic performance of new sound-absorbing materials, especially in the high-frequency performance is better, but also resistant to poor working conditions and strong. Perforated panel with metal fiber acoustic absorption structure, not only can improve the service life of metal fiber materials, but also to further enhance the low-frequency sound absorption. Reasonable design of the structural parameters of the retaining panel to meet the needs of different absorption frequency band.