| 双层板结构隔声性能阻抗法分析 |
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| 引用本文： | 王佐民,姜在秀.双层板结构隔声性能阻抗法分析[J].同济大学学报(自然科学版),2011,39(9):1383-1386. |
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| 作者姓名： | 王佐民 姜在秀 |
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| 作者单位： | 同济大学声学研究所,上海,200092 |
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| 摘 要： | 应用阻抗分析法与少量实样测试相结合的研究途径,探讨具有确定平面尺寸和边界条件的双层板结构的隔声量,进而得到相应的半理论半经验拟合公式.对3种不同夹层形式的双层板结构的倍频程隔声量进行实例分析,得到各自的拟合公式.3种夹层形式分别为吸声材料夹层、空气夹层(空腔)和空气-吸声材料夹层.利用这些拟合公式,可以便捷、高效地开展隔声结构参量的工程筛选.
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| 关 键 词： | 隔声 双层板 阻抗分析法 |
| 收稿时间： | 6/7/2010 10:41:48 AM |
| 修稿时间： | 2010/10/8 0:00:00 |
Impedance Analysis Method for Sound Insulation of Double Panels |
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| WANG Zuomin and JIANG Zaixiu.Impedance Analysis Method for Sound Insulation of Double Panels[J].Journal of Tongji University(Natural Science),2011,39(9):1383-1386. |
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| Authors: | WANG Zuomin and JIANG Zaixiu |
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| Institution: | Institute of Acoustics,Tongji University, Shanghai 200092, China;Institute of Acoustics,Tongji University, Shanghai 200092, China |
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| Abstract: | The sound insulation of double panels with a certain plane dimensions and boundary condition can be analyzed by a combinative way of impedance analysis method and a few measurements,and an expert formula can be obtained.Three kinds of sandwich material constructions were analyzed respectively.Its sound insulations and expert formulae were obtained in octave band.These three kinds of sandwich materials are absorbing sandwich,air sandwich,and air-absorbing sandwich.It will be convenient and high efficient to screen insulation construction parameters by these expert formulae in engineering design. |
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| Keywords: | sound insulation double panels impedance analysis method |
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