Electromagnetic Vibration Power Generator

Hadaš, Zdeněk; Kluge, Martin; Singule, Vladislav; Ondrůšek, Čestmír

doi:10.1109/demped.2007.4393136

Cited by 34 publications

(13 citation statements)

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“…The design of the developed vibration energy harvester in WISE project in year 2008 was based on this spring-less design of resonance mechanism and sensitivity of this real vibration energy harvester in WISE project was tailored to an operation in an aeronautic application (Hadas et al 2007a). The resonance frequency of the generator is around 17 Hz and a range of the operating vibration level is 0.1-1 g RMS (vibration level is acceleration in multiple of gravity constant).…”

Section: Design Of Vibration Energy Harvestermentioning

confidence: 99%

Power sensitivity of vibration energy harvester

2010

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This paper deals with a power sensitivity improvement of an electromagnetic vibration energy harvester which generates electrical energy from ambient vibrations. The harvester provides an autonomous source of energy for wireless applications, with an expected power consumption of several mW, placed in environment excited by ambient mechanical vibrations. An appropriately tuned up design of the harvester with adequate sensitivity provides sufficient generating of electrical energy for some wireless applications and maximal harvested power depends on a harvester mass, frequency and level of the vibration and sensitivity of the energy harvester. The design of our harvester is based on electromagnetic converter and it contains a unique spring-less resonance mechanism where stiffness is provided by repelled magnetic forces. The greater sensitivity of the harvester provides more generated power or decrease of the harvester size and weight.

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Section: Design Of Vibration Energy Harvestermentioning

confidence: 99%

Power sensitivity of vibration energy harvester

2010

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“…The oscillator attains maximum velocity, and thus input kinetic energy, in a frequency band around its natural frequency defined as: ω = k m , where k is the linear stiffness of the spring and m is the effective mass of the oscillator. While these types of energy harvesters are capable of generating electrical energy with output power on the order of milli-Watts [1,7], their natural frequency must be tuned to match the frequency of ambient vibrations. These types of harvesters are, by definition, designed to to work at a single frequency.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Modeling and Analysis of a Vertical Springless Energy Harvester

Bendame

Abdel‐Rahman

2012

MATEC Web of Conferences

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Abstract. Harvesting energy from ambient sources has attracted the attention of researchers and scientists over the last few decades. While solar, thermal and wind energies have been exploited over the years, a new type of energy that has emerged in recent years, and is the subject of many research projects, is vibration energy harvesting. In this paper we will describe and analyze a recently proposed vibration energy harvester, namely the "Springless" vibration energy harvester. In this study, we will model and analyze the "Springless" vibration energy harvester in the vertical configuration. The vertically-aligned configuration is used when vibrations are predominantly in the vertical direction. Test results of a prototype model as well as results form a mathematical model describing the behavior of the harvester are presented. Test results show that the "Springless" energy vibration harvester behaves as a softening nonlinear oscillator for excitations above 0.2g with its center frequency shifting to the right. Similar results were obtained using a mathematical model of the underlying impact oscillator.

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“…The thus proposed small (0.15 cm 3 ) EH device, operating optimally at 52 Hz, allowed attaining a power output of 46 μW (a specific power output of 307 μW/cm 3 ) ( Figure 11 a). A 50 x 32 x 28 mm electromagnetic power generator, that makes use of an aluminium alloy spring with NdFeB magnets, and produces 8 mW (0.18 mW/cm 3 ) of power at 34.5 Hz and a 0.8 g acceleration is, in turn, proposed [ 98 ]. This device was also rearranged, based on the rapid prototyping design of the respective plastic frame, for a lower operational frequency of 17 Hz and, weighting only 120 g in a 120 cm 3 envelope and generating a maximal power of 30 mW, has been successfully tested in rotorcraft assemblies [ 99 ].…”

Section: Kinetic Energy Harvesting Systemsmentioning

confidence: 99%

Energy Harvesting Technologies for Structural Health Monitoring of Airplane Components—A Review

Zelenika

Hadaš

Bader

et al. 2020

Sensors

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With the aim of increasing the efficiency of maintenance and fuel usage in airplanes, structural health monitoring (SHM) of critical composite structures is increasingly expected and required. The optimized usage of this concept is subject of intensive work in the framework of the EU COST Action CA18203 “Optimising Design for Inspection” (ODIN). In this context, a thorough review of a broad range of energy harvesting (EH) technologies to be potentially used as power sources for the acoustic emission and guided wave propagation sensors of the considered SHM systems, as well as for the respective data elaboration and wireless communication modules, is provided in this work. EH devices based on the usage of kinetic energy, thermal gradients, solar radiation, airflow, and other viable energy sources, proposed so far in the literature, are thus described with a critical review of the respective specific power levels, of their potential placement on airplanes, as well as the consequently necessary power management architectures. The guidelines provided for the selection of the most appropriate EH and power management technologies create the preconditions to develop a new class of autonomous sensor nodes for the in-process, non-destructive SHM of airplane components.

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Electromagnetic Vibration Power Generator

Cited by 34 publications

References 0 publications

Power sensitivity of vibration energy harvester

Power sensitivity of vibration energy harvester

Nonlinear Modeling and Analysis of a Vertical Springless Energy Harvester

Energy Harvesting Technologies for Structural Health Monitoring of Airplane Components—A Review

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