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具有压电分流电路薄板的吸声特性 Ⅱ．数值和实验分析 被引量：3

Sound absorption characteristics of a thin plate with PZT shunted with passive electrical circuit II.Numerical and Experimental analysis
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摘要 利用数值计算和实验方法研究了压电分流阻尼技术控制薄板吸声特性的机制,分析了串联电阻和电感与薄板吸声系数、相对声阻和相对声抗之间的关系。数值计算和实验结果表明:通过调节分流电路中电感和电阻等参数,可使电路谐振和机械谐振出现强耦合,进而明显提高薄板一阶模态处的吸声系数和吸声带宽。 The influence of RL parameters on the sound absorption of a plate shunted with piezoelectric materials was investigated using numerical analysis and experimental measurements. The effect of shunting electrical resistance and inductance on the sound absorption coefficient, acoustic resistance and reactance of the plate was thoroughly analyzed. Numerical and experimental results concluded that the sound absorption coefficient of the plate near its first mode can be significantly improved by adjusting the RL parameters.
作者 常道庆 刘碧龙 李晓东 田静
机构地区 中国科学院声学研究所
出处 《声学学报》 EI CSCD 北大核心 2008年第2期138-144,共7页 Acta Acustica
关键词 压电分流阻尼 吸声特性 数值计算 实验分析 薄板 电路 串联电阻 机械谐振 Acoustic wave absorption Electric resistance Inductance Noise abatement Numerical analysis Vibration control
分类号 O42 [理学—声学]
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参考文献9

  • 1Hagood N W, yon Flotow A. Damping of structural vibrations with piezoelectric materials and passive electrical networks. Journal of Sound and Vibration, 1991; 146(2): 243-268
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二级参考文献10

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  • 10常道庆,刘碧龙,李晓东,田静.具有压电分流电路薄板的吸声特性 Ⅱ．数值和实验分析[J].声学学报,2008,33(2):138-144. 被引量：3

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同被引文献49

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二级引证文献11

声学学报
2008年 第2期

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