Software and communications architecture for Prognosis and Health Monitoring of ocean-based power generator

Author(s):  
Ionut Cardei ◽  
Ankur Agarwal ◽  
Bassem Alhalabi ◽  
Timur Tavtilov ◽  
Taghi Khoshgoftaar ◽  
...  
2020 ◽  
Vol 10 (22) ◽  
pp. 8258
Author(s):  
Katsufumi Hashimoto ◽  
Tomoki Shiotani ◽  
Hiroyuki Mitsuya ◽  
Kai-Chun Chang

Micro energy harvesters (MEH) based on microelectromechanical systems (MEMS) are rapidly developing, providing a green and virtually infinite energy source. The electrostatic vibratory power generator outputs electric power when it vibrates, motivating us to apply it to vibrating civil infrastructures excited by ambient and daily traffic loadings. In this study, an innovative monitoring system utilizing MEH devices was proposed for detecting slab damage and pier scours for bridge structures. Its performance was numerically investigated with finite element models, where the damage in slabs was modeled with a reduced Young’s modulus and scours with fixed boundaries of inclined depth. It was shown that the powers generated at each MEH varied as the target structure’s modal frequency shifted and amplitude changed by damage or scour. A power generation index was proposed to identify slab damage and a reference-free method was introduced to detect uneven pier scours. Utilizing an electrostatic vibration-based MEH (MEMS vibrational power generator), this pioneering study showed that MEMS vibrational power generators can work as sensors for an infrastructure structural health monitoring system.


2007 ◽  
Author(s):  
Katherine Harris Abbott ◽  
Eleanor Palo Stoller ◽  
Julia Hannum Rose
Keyword(s):  

2001 ◽  
Vol 89 ◽  
pp. 31-33
Author(s):  
L. Flandin ◽  
Y. Bréchet ◽  
J.Y. Cavaillé

2019 ◽  
Author(s):  
M Thißen ◽  
F Prütz ◽  
M Rabenberg ◽  
AC Saß ◽  
T Ziese
Keyword(s):  

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