Redirigiendo al acceso original de articulo en 17 segundos...
Inicio  /  Applied Sciences  /  Vol: 9 Par: 22 (2019)  /  Artículo
ARTÍCULO
TITULO

Stress-Controlled Frequency Tuning and Parametric Amplification of the Vibrations of Coupled Nanomembranes

Sepideh Naserbakht    
Andreas Naesby and Aurélien Dantan    

Resumen

Noninvasive tuning of the mechanical resonance frequencies of suspended parallel nanomembranes in various monolithic arrays is achieved by piezoelectric control of their tensile stress. Parametric amplification of their thermal fluctuations is shown to be enhanced by the piezoelectric actuation and amplification factors of up to 20 dB in the sub-parametric oscillation threshold regime are observed.

 Artículos similares

       
 
Fan Zhang, Bo-Chuan Chen, Zhen-Zhen Gui, Jian-Hui Zhang, Xi Huang, Jia-Li Liang, Yao-Hua Zeng, Tian Tan, Tang Xie, Yu-Xin Wen and Jia-Long Wang    
Dynamic mesh atomizers have been widely used in various fields because of their compact structure, low energy consumption, and low production costs. The finite element method is an important technique to analyze the factors affecting the atomization perf... ver más
Revista: Applied Sciences

 
Zhongchen He, François Rault, Astha Vishwakarma, Elham Mohsenzadeh and Fabien Salaün    
Poly(vinylidene fluoride) (PVDF)-electrosprayed nanofibers have been the subject of much research due to their flexibility and piezoelectric properties compared to other piezoelectrics, for example, ceramics or other polymeric materials. The piezoelectri... ver más
Revista: Coatings

 
Nguyen Thai Cuong, Sophie Barrau, Malo Dufay, Nicolas Tabary, Antonio Da Costa, Anthony Ferri, Roberto Lazzaroni, Jean-Marie Raquez and Philippe Leclère    
The effect of the post-annealing process on different properties of poly (L-lactic acid) (PLLA) nanofibers has been investigated in view of their use in energy-harvesting devices. Polymeric PLLA nanofibers were prepared by using electrospinning and then ... ver más
Revista: Applied Sciences

 
Sung Hee Kim, Yongchan Kwon, KangGeon Kim and Youngsu Cha    
Soft sensors are attracting significant attention in human?machine interaction due to their high flexibility and adaptability. However, estimating motion state from these sensors is difficult due to their nonlinearity and noise. In this paper, we propose... ver más
Revista: Applied Sciences

 
Zhiying Tan, Yan Ji, Zhongwen Fei, Xiaobin Xu and Baolai Zhao    
Detection of scratch defects on randomly textured surfaces remains challenging due to their unnoticeable visual features. In this paper, an algorithm for piezoelectric ceramic plate surface scratch defects based on the combination of fuzzy c-means cluste... ver más
Revista: Applied Sciences