Piezoelectric Actuated Nonlinear Energy Sink With Tunable Attenuation Efficiency
Piezoelectric Actuated Nonlinear Energy Sink With Tunable Attenuation Efficiency
复制标题
具有可调衰减效率的压电驱动非线性能量吸收器
DOI：
10.1115/1.4045108
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发表时间：
2020-02
期刊：
影响因子：
--
通讯作者：
Pengbo Liu
中科院分区：
文献类型：
--
作者：
Jian Zhao;Ming Lyu;Hongxi Wang;Najib Kacem;Yu Huang;Pengbo Liu
与线性吸振器相比，非线性能量阱（NESs）因其在相对较宽的频率范围内具有靶向能量传递或能量泵吸的固有特性而受到了全世界的关注。不幸的是，它们高度……
Comparing to linear vibration absorbers, nonlinear energy sinks (NESs) have attracted worldwide attention for their intrinsic characteristics of targeted energy transfer or energy pumping in a relatively wide frequency range. Unfortunately, they are highly dependent on the vibration amplitude to be attenuated and will play its role only if the external load exceeds a specific threshold value. Different from the passive bistable NES, a novel piezoelectric nonlinear energy sink (PNES) is designed by introducing in-phase actuation to compensate or enhance the external vibration loads, thus triggering the NES operating in high attenuation efficiency. The nonlinear mathematic model of the PNES is established for investigating the dynamic response and determining the threshold compensation strategy. And the results show that the maximum attenuation efficiency can be improved by 58.16% compared to the traditional passive NES. Also, the amplitude-dependent coefficient (ADC) can be significantly reduced to 0.33 from 1.0, which means that the PNES can effectively mitigate vibrations even when the excitation amplitude is 67% smaller than the original threshold value. Finally, the feasibility of the in-phase compensation method is experimentally validated, which can further expand the application range of NES.
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影响因子：
4.7
作者：
R. Mariani;S. Bellizzi;B. Cochelin;P. Herzog;Pierre-Olivier Mattei
通讯作者：
R. Mariani;S. Bellizzi;B. Cochelin;P. Herzog;Pierre-Olivier Mattei
影响因子：
4.7
作者：
T. Silva;M. A. Clementino;C. D. Marqui;A. Erturk
通讯作者：
T. Silva;M. A. Clementino;C. D. Marqui;A. Erturk
DOI：
10.1115/1.2198546
发表时间：
2007-03
期刊：
Journal of Applied Mechanics
影响因子：
--
作者：
O. Gendelman;Y. Starosvetsky
通讯作者：
O. Gendelman;Y. Starosvetsky
影响因子：
5.6
作者：
M. Kani;S. E. Khadem;M. Pashaei;M. Dardel
通讯作者：
M. Kani;S. E. Khadem;M. Pashaei;M. Dardel
影响因子：
2.5
作者：
NAYFEH, AH;KREIDER, W;ANDERSON, TJ
通讯作者：
ANDERSON, TJ