| 高强度声场中微穿孔板的非线性声阻抗率 |
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| 引用本文： | 赵松龄,苏建新.高强度声场中微穿孔板的非线性声阻抗率[J].同济大学学报(自然科学版),1992,20(3):249-255. |
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| 作者姓名： | 赵松龄 苏建新 |
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| 作者单位： | 同济大学声学研究所，同济大学声学研究所 |
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| 摘 要： |
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| 关 键 词： | 非线性 微穿孔板 振吸声结构 |
Nonlinear Specific Acoustic Impedance of the Microperforated Panel under Sound Field of High Intensity |
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| Zhao Songling Su Jianxin.Nonlinear Specific Acoustic Impedance of the Microperforated Panel under Sound Field of High Intensity[J].Journal of Tongji University(Natural Science),1992,20(3):249-255. |
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| Authors: | Zhao Songling Su Jianxin |
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| Institution: | Institute of Acoustics |
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| Abstract: | In this paper, the nonlinear acoustic impedance of the micro-perforated panel is investigated both theoretically and experimentally. The flow motion in the vicinity of panel is analysed on the basis of fundamental equations in aerodynamics. The lst approach of the theoretical solution is derived. The origins of the nonlinear resistance and reactance are discussed. Taking into account the linear effect, formulas for calculation are obtained. Experimental measurement is undertaken with two-micro-phone method. It is shown that the results of calculation are in good agreement with the experimental values. |
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| Keywords: | Nonlinear specific acoustic impedance Micro-perforated panel Sound absorbing resonator |
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