A vibration energy harvester using a nonlinear oscillator with self-excitation capability

2011 ◽  
Author(s):  
Arata Masuda ◽  
Atsuko Senda
Keyword(s):  
Nonlinear Oscillator ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester

Vertically-Aligned Springless Energy Harvester

2011 ◽  
Author(s):  
Mohamed Bendame ◽  
Karim Elrayes ◽  
Mohamed Mahmoud ◽  
Eihab M. Abdel-Rahman ◽  
Ehab El-Saadany ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Nonlinear Oscillator ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Test Results ◽  
Impact Oscillator ◽  
Vibration Energy Harvester ◽  
Vertically Aligned

This paper analyzes a new configuration of a recently proposed “springless” vibration energy harvester. In this study, the harvester is positioned so that its oscillations are aligned vertically acting against gravity. The MPG response is investigated experimentally. Test results show that the VEH behaves as a softening nonlinear oscillator even for small excitations. A mathematical model of the underlying impact oscillator is also derived and its parameters are estimated.

Simply supported FPEDs connected by springs for broadband energy harvesting

2020 ◽  
Vol 64 (1-4) ◽  
pp. 201-210
Author(s):  
Yoshikazu Tanaka ◽  
Satoru Odake ◽  
Jun Miyake ◽  
Hidemi Mutsuda ◽  
Atanas A. Popov ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Evaluation Method ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Functional Materials ◽  
Vibration Energy ◽  
Theoretical Evaluation ◽  
Vibration Energy Harvester ◽  
Polyvinylidene Difluoride ◽  
Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

Hybrid Vibration Energy Harvester based on Stochastic Resonance

2018 ◽  
Vol 138 (5) ◽  
pp. 185-190
Author(s):  
Meng Su ◽  
Dai Kobayashi ◽  
Nobuyuki Takama ◽  
Beomjoon Kim
Keyword(s):  
Stochastic Resonance ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester

Optimization of MEMS Vibration Energy Harvester With Perforated Electrode

2021 ◽  
Vol 30 (2) ◽  
pp. 299-308
Author(s):  
Anxin Luo ◽  
Yulong Zhang ◽  
Xinge Guo ◽  
Yan Lu ◽  
Chengkuo Lee ◽  
...  
Keyword(s):  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester
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