Vibration isolation and damping using a piezoelectric flextensional suspension with a negative capacitance shunt

K. Billon; N. Montcoudiol; A. Aubry; R. Pascual; F. Mosca; F. Jean; C Pezerat; C. Bricault; S. Chesne

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Vibration isolation and damping using a piezoelectric flextensional suspension with a negative capacitance shunt

机译：使用带有负电容分流器的压电挠性悬架进行隔振和阻尼

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A suspension combining a piezoelectric component and a mechanical amplifier is studied in view to reducing vibration transmission over a wide frequency band. The principle and design of the piezoelectric suspension are approached using electromechanical and finite element models. The aim is to combine high damping at resonant frequency and high isolation at high frequency. The electromechanical coupling of the transducer allows implementing mechanical damping and electric damping with different shunts based on resistive and negative capacitance. The first design of the device is tested experimentally.

机译：为了减少在宽频带上的振动传递，研究了将压电部件和机械放大器组合的悬架。压电悬架的原理和设计使用机电模型和有限元模型进行研究。目的是将共振频率下的高阻尼与高频下的高隔离度结合起来。换能器的机电耦合允许基于电阻和负电容，通过不同的分流器实现机械阻尼和电阻尼。该设备的第一个设计已通过实验测试。

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来源
《Mechanical systems and signal processing》 |2020年第6期|106696.1-106696.11|共11页
作者
K. Billon; N. Montcoudiol; A. Aubry; R. Pascual; F. Mosca; F. Jean; C Pezerat; C. Bricault; S. Chesne;
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作者单位

Univ Lyon INSA-Lyon CNRS UMR5259 LaMCoS F-69621 France;

PYTHEAS Technology 100 Impasse des Houllieres ZA Le Pontet F-13590 France;

Laboratoire d'Acoustique de l'Universite du Mans - UMR CNRS 6613 F-72085 France;

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原文格式 PDF
正文语种 eng
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关键词
Suspension; Vibration; Piezoelectricity; Resistive shunt; Negative capacitance; Electromechanical model; Experimental validation;

机译：悬挂;振动;压电;电阻分流器;负电容;机电模型;实验验证;

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1. An adaptive negative capacitance circuit for enhanced performance and robustness of piezoelectric shunt damping [J] . Pohl Martin Journal of intelligent material systems and structures . 2017,第19期

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2. Improved piezoelectric switch shunt damping technique using negative capacitance [J] . Han X., Neubauer M., Wallaschek J. Journal of Sound and Vibration . 2013,第1期

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3. Vibration damping with negative capacitance shunts: theory and experiment [J] . de Marneffe B, Preumont A Smart Materials & Structures . 2008,第3期

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4. Stiffness and damping effects of the rhombic piezoelectric stack transducer with a negative capacitance shunt [C] . B Yan, W Zheng, S Zhou International Conference on Modeling in Mechanics and Materials . 2019

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机译：通过同步开关对负电容和自适应电压源的压电分流阻尼

Vibration isolation and damping using a piezoelectric flextensional suspension with a negative capacitance shunt

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