| 周期性压电分流薄板结构振动控制方法研究 |
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| 引用本文： | 闫旭,郭辉,王岩松,李佳杰.周期性压电分流薄板结构振动控制方法研究[J].压电与声光,2017,39(1):126-130. |
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| 作者姓名： | 闫旭 郭辉 王岩松 李佳杰 |
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| 作者单位： | （上海工程技术大学 汽车工程学院，上海 201620） |
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| 基金项目： | 上海市自然科学基金资助项目(14ZR1418600)；国家自然科学基金资助项目(51675324，51175320)；研究生科研创新基金资助项目(E309031601057) |
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| 摘 要： | 为降低薄板振动产生的辐射噪声,采用将分流压电振子周期性固定于薄板上的方式进行振动控制,因结构符合周期性所以能够衰减压电薄板的振动量从而抑制薄板产生的辐射噪声。分别利用有限元法和传递矩阵法建立分流压电薄板的理论模型和弹性波传播理论模型,分析了压电薄板对振动衰减的原理,研究了3种分流电路调谐频率对压电薄板振动衰减的影响。结果表明,当电路调谐频率为850Hz时,压电薄板的振动衰减量最大。
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| 关 键 词： | 周期性 压电振子 薄板 分流电路 有限元分析 振动控制 |
Study on Vibration Control Method of Plates With Periodic Arrays of Shunted Piezoelectric Patches |
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| YAN Xu,GUO Hui,WANG Yansong,LI Jiajie.Study on Vibration Control Method of Plates With Periodic Arrays of Shunted Piezoelectric Patches[J].Piezoelectrics & Acoustooptics,2017,39(1):126-130. |
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| Authors: | YAN Xu GUO Hui WANG Yansong LI Jiajie |
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| Affiliation: | (School of Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China) |
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| Abstract: | The periodic arrays of shunted piezoelectric patches have advantage to reduce the radiated noise from the vibration of the plate through suppressing the vibration. The theory models of the shunt piezoelectric thin plate and elastic wave propagation are established based on finite element method (FEM) and the transfer matrix method respectively. The vibration attenuation principle of piezoelectric plate is analyzed. And the effect of three kinds of shunt circuit tuning frequency on the vibration attenuation of the piezoelectric plate is investigated. The results show that the vibration attenuation is largest at the circuit tuning frequency of 850 Hz. |
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| Keywords: | periodicity piezoelectric vibrator thin plate shunted circuit finite element analysis vibration control |
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