A bistable electromagnetic micro-power generator using FR4-based folded arm cantilever

Podder, Pranay; Amann, Andreas; Roy, Saibal

doi:10.1016/j.sna.2015.03.043

Cited by 25 publications

(8 citation statements)

References 29 publications

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“…The very high resonance frequency (~4000 Hz) deteriorates the applicability of such device in most of the ambient vibrations (1–200 Hz). For low frequency vibration energy harvesting, the non-linear [ 14 ], bistable [ 22 ], magnetostatic [ 23 ] wideband energy harvesters have the bandwidth between 5–19%, which is also lower than the relative tuning range of 64% in this work. These three types of devices have the potential to realize very large bandwidth, but each of them must overcome their inherent behavioral limitations before put into real applications, e.g., hysteresis for nonlinear devices, uncertain dynamic behavior under random and low vibrations for bistable devices and limitation of inter-magnet distance.…”

Section: Resultsmentioning

confidence: 99%

Electromagnetic Vibration Energy Harvester with Tunable Resonance Frequency Based on Stress Modulation of Flexible Springs

Zhou

Cao

et al. 2021

Micromachines

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This paper presents a compact electromagnetic vibrational energy harvester (EVEH) with tunable resonance frequency. The resonance frequency of the EVEH is tuned by adjusting the axial stress in the flexible polymeric springs, which is realized by physically pulling and pushing the springs. The stress tuning functionality is realized with a compact structure with small volume. The total frequency tuning range of the proposed EVEH is 56 Hz (74 Hz–130 Hz), which is 64% of the natural resonance frequency of the EVEH (88 Hz). It is found that the tensile stress increases the resonance frequency of the EVEH, while the compressive stress firstly reduces the resonance frequency and then increases the resonance frequency due to buckling.

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Section: Resultsmentioning

confidence: 99%

Electromagnetic Vibration Energy Harvester with Tunable Resonance Frequency Based on Stress Modulation of Flexible Springs

Zhou

Cao

et al. 2021

Micromachines

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“…Examples of systems utilizing FR-4 include those described in [15,[38][39][40][41]. Typically, a topology made of this material is fabricated using either a CNC machine or laser micromachine.…”

Section: Figure 3: (A) Top View (B) Side Viewmentioning

confidence: 99%

A 3D printed electromagnetic nonlinear vibration energy harvester

Constantinou¹,

Roy²

2016

Smart Mater. Struct.

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“…A piezoelectric vibration energy harvester is more suitable for high frequency, small amplitude vibration energy which has high power density. An electromagnetic vibration harvester is more suitable for low frequency, large amplitude vibration energy which has relatively low power density [10,11].…”

Section: Introductionmentioning

confidence: 99%

A Dimensionless Parameter Analysis of a Cylindrical Tube Electromagnetic Vibration Energy Harvester and Its Oscillator Nonlinearity Effect

et al. 2018

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This paper investigates a single degree of freedom oscillator in a cylindrical tube vibration energy harvester which is applicable in a low-frequency range. A duffing-type nonlinear dynamic differential equation of the oscillator was developed for the nonlinear analysis and solved by using the harmonic balance method in order to widen energy harvesting frequency bandwidth. The exploitation of nonlinear spring force interactions of the oscillator to enhance the generator's performance is also presented in this paper. The dimensionless harvested power formula of the nonlinear mass-spring-damper system was derived, and a parameter study was conducted for the design optimization of the harvester. The main contribution of this paper is to establish a dimensionless performance analysis method of a nonlinear electromagnetic vibration energy harvester system and to disclose the effects of the parameters and nonlinearity of the system on the harvesting performance.

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A bistable electromagnetic micro-power generator using FR4-based folded arm cantilever

Cited by 25 publications

References 29 publications

Electromagnetic Vibration Energy Harvester with Tunable Resonance Frequency Based on Stress Modulation of Flexible Springs

Electromagnetic Vibration Energy Harvester with Tunable Resonance Frequency Based on Stress Modulation of Flexible Springs

A 3D printed electromagnetic nonlinear vibration energy harvester

A Dimensionless Parameter Analysis of a Cylindrical Tube Electromagnetic Vibration Energy Harvester and Its Oscillator Nonlinearity Effect

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