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本文提出至今尚未圆满解决的无限薄平板中一个圆孔的线性声阻的理论分析方法,得到了线性声阻率的高频(或大孔径)近似式及低频(或小孔径)极限值;理论计算和实测值符合良好;最后给出了在全频率范围适用的声阻率近似公式。In this paper, a theory is presented for the linear acoustic resistance of an orifice in an infinite thin plate. For high frequency and/or great orifice, an approximating formula is derived, while the limiting value is obtained in opposite case. Theoretical calculations are in consistency with experimental data. Finally, an approximating formula which is applicable for the whole frequency range is given.
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