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<strong>Design optimization in geometry of seismic mass for MEMS based cantilever type piezoelectric energy harvester for motor vibrations</strong>

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Title Statement <strong>Design optimization in geometry of seismic mass for MEMS based cantilever type piezoelectric energy harvester for motor vibrations</strong>
 
Added Entry - Uncontrolled Name Sharma, Ritu ; Malaviya National Institute of Technology jaipur
Saxena, Shanky ; Research Scholar Department of Electronics and communication Engineering MNIT Jaipur
Pant, B. D. ; Emeritus Scientist CEERI pilani rajasthan
IITM kanpur
 
Uncontrolled Index Term Applied Physics, specific instrumentation and techniques of general use in physics,
Microelectromechanical system (MEMS); Micromechanical resonators; Piezoelectric energy harvester; Energy harvesting; Motor vibrations
 
Summary, etc. Piezoelectric energy harvesters are suitable for vibration energy harvesting due to simple design, operation and fabrication in MEMS technology. Cantilever structures fixed from one end and seismic mass at the other must tune to different resonance frequency to ensure wideband frequency operation. Adequate width to length ratio of cantilever is required to avoid curling of cantilevers (bending). Effect of increase in width of the cantilever structure on resonance frequency has been investigated and also compared analytically in this paper. An optimized design has been proposed which compensates for the increase in resonance frequency due to increase in width by changing the geometry of the seismic mass. With the change in geometry of seismic mass a shift in center of mass has been achieved towards the free end of the cantilever which reduces the resonance frequency which is desirable. The design optimization of seismic mass reported in this paper reduces the resonance frequency by 4.27 % which is appreciated as it is required to harvest ambient vibrations having low frequency.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2019-05-22 12:42:14
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/17579
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 57, ##issue.no## 5 (2019): Indian Journal of Pure & Applied Physics
 
Language Note en
 
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