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It is found that the existence of EI can help to enhance the energy harvesting performance of the system in most cases, and setting the impact barrier at the origin is more conducive to harvesting energy compared with other impact positions. ... R.B. Davis, Nonlinear dynamics and triboelectric energy harvesting from a three-degree-of-freedom ...
2 · An energy-harvesting device was integrated into a cylinder end-cap to recover energy from the piston impact at the end of the stroke. The recovered energy powers a radio …
This study systematically analyzes the nonlinear dynamics and energy harvesting performance of a recently emerging tunable low-frequency vibration-based energy harvester, …
The benefits of using a non-linear stiffness in an energy harvesting device comprising a mass–spring–damper system are investigated. Analysis based on the principle of conservation of energy reveals a fundamental limit of the effectiveness of any non-linear device over a tuned linear device for such an application. Two types of non-linear stiffness are …
Recent achievements in triboelectric nanogenerator (TENG) (13–18) arising from triboelectrification and electrostatic breakdown have posed a prototype for harvesting the electrostatic energy of "artificial …
The dynamics of an electromagnetic vibro-impact nonlinear energy sink (VINES) is investigated. The system consists of a linear oscillator equipped with multiple turns of coil, coupled to a magnet attachment that undergoes two-sided inelastic impacts. The dynamical model is formulated in a dimensionless formula and handled using a multiscale expansion …
The nonlinear bistable and tristable configurations have excellent characteristics on energy harvesting [64,65,66,67,68].Therefore, we investigate the nonlinear dynamic characteristics of the bistable wake-galloping energy harvester (BWEH) and the tristable wake-galloping energy harvester (TWEH) which can be realized by adjusting the distance and …
Rotational energy harvesting from a novel dielectric elastomer generator with crank-connecting rod mechanisms was first proposed by the authors [32]. ... The dynamics modeling and electrical modeling of the ADEO under the unidirectional harmonic excitation are also introduced in this section. 2.1. physical model.
1 · To evaluate the system''s overall energy harvesting performance, we define the total power generation efficiency ( η total ) as the ratio of the combined mechanical power extracted …
Cantilever-based energy harvesting arrays utilize combinations of adjacent linear resonance regions from fundamental resonances and are able to extend the working frequency …
Chaotic dynamics analysis provides a simplified analytical idea that offers more insight into the performance of this energy harvesting device. ... Energy harvesting from vibrations is a popular ...
The piezoelectric–electromagnetic hybrid vibration energy harvester (HVEH) has proven to be a favorable option to overcome the low-power generation issue of individual energy conversion mechanism. Considering the inevitable asymmetry and the ubiquitous ambient noise in engineering, the stochastic dynamics of an asymmetric tri-stable HVEH driven by colored …
The Energy Harvesting Research Group at Exeter combines cutting edge academic research with a firm focus on the needs of industry. We use a fully integrated system approach to address key challenges in energy harvesting …
Energy harvesting from piezoelectric materials is quite common and has been studied for the past few decades, but, recently, there have been a lot of new advancements in harnessing electrical energy via piezoelectric materials. In this regard, several studies were carried out in electrochemistry and fluid flow. Furthermore, consideration of productive and …
Inspired by the dynamics of the noninertial systems, a novel bistable energy harvesting backpack is proposed that improves biomechanical energy harvesting performance. In contrast to traditional bistable energy harvesters that use an oblique compressed spring, a new bistable backpack is developed that uses the change of a spring torque direction located on a …
Nonlinear energy harvesting based on a rotating system Dan Wanga;b,Fangqi Chena, Zhifeng Haob, Marian Wiercigrochc a College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China b School of Mathematical Sciences, University of Jinan, Jinan 250022, China c Centre for Applied Dynamics Research, University …
These insights enhance understanding of power efficiency dynamics in ambient energy harvesting, thereby offering practical recommendations for parameter selection to …
Several investigators have taken advantage of electromagnetic shunt-tuned mass dampers to achieve concurrent vibration mitigation and energy harvesting. For nonlinear structures such as the Duffing oscillator, it has been shown that the novel nonlinear electromagnetic resonant shunt-tuned mass damper inerter (NERS-TMDI) can mitigate …
PDF | On Dec 1, 2022, J.W. Zhang and others published Dynamics and energy harvesting performance of a nonlinear arc-cylinder type dielectric elastomer oscillator under unidirectional harmonic ...
This paper investigates the dynamical responses and performances of mono-, bi-, and tri-stable nonlinear energy sinks in simultaneous vibration suppression and energy harvesting as well as solely vibration mitigation. To this end, a realizable multi-stable nonlinear energy sink composed of a bimorph cantilever beam and arrays of magnets is considered for …
Inherent nonlinearities of piezoelectric materials are pronounced in various engineering applications such as sensing, actuation, combined applications for vibration control, and energy harvesting from dynamical systems. The existing literature focusing on the dynamics of electroelastic structures made of piezoelectric materials has explored such nonlinearities …
This paper analyzes the nonlinear dynamical behavior and energy harvesting performance of an energy harvesting device with a gear unit and an inertial amplifier.
To achieve self-powered sensing when complex dynamics exist in fluid-conveying pipes, a novel piezoelectric energy harvesting configuration of cantilevered fluid-conveying …
Dive into the research topics of ''Nonlinear dynamics of a new energy harvesting system with quasi-zero stiffness''. Together they form a unique fingerprint. dynamics INIS 100%. nonlinear problems INIS 100%. stiffness INIS 100%. energy INIS 100%. harvesting INIS 100%.
To identify the optimal conditions for harvesting energy from mechanical vibrations, a multi-colored map of the RMS voltage values was produced. Its reference to the Lyapunov …
efficiency improvement of energy harvesting ... ear dynamics methods to improve the efficiency of EH systems. We study the equivalent circuits (ECs) for two well-known energy harvesters: piezoelectric and magnetic inductive. Using circuit theory, we show that
In recent years, energy harvesting devices were proposed and investigated for clean energy harvesting. There are countless devices for energy harvesting, as example: the displacement oceanic buoys that convert the displacement of sea waves into electrical energy [1,2,3,4,5,6,7,8].Another example of energy harvesting devices is those that convert wind force …
Energy harvesting from ambient conditions may be one solution to the above challenges. The IoT and powering of portable devices are becoming increasingly popular among researchers working on structural health monitoring systems. ... The non-linear dynamics and harvesting performance of the harvester array are studied numerically. Parameters ...
For aviation structures, the phenomenon of flutter must be avoided. 100-102 The energy harvesting structure can be regarded as an energy dissipation mechanism. 103 The application of energy harvesters to the research on the integration of vibration suppression and energy harvesting of aircraft structures is very promising. Some research studies on energy harvesting …
Fluid energy harvesting is a field of research focused on extracting and utilizing energy from moving fluids, such as water and wind. One prominent method within fluid energy harvesting is the flow-induced vibration approach, which has gained significant attention and study in recent years [1,2,3,4].The flow-induced vibration approach involves harnessing the …
The energy-harvesting shock absorber designed by Li et al. [36] ... It is worth noting that the study based on pendulum dynamics conducted by Wang [113] is consistent with the main thrust of this paper, aiming to give the general design, analysis, manufacture, ...
In recent years there has been particular interest in energy harvesting from low frequency sources naturally occurring in the environment [1, 2].Energy harvesters utilising naturally occurring low frequency vibrations from waves to human motion have been developed to reduce reliance on fossil fuels and meet sustainable goals [3, 4].With the growing use of …
To achieve self-powered sensing when complex dynamics exist in fluid-conveying pipes, a novel piezoelectric energy harvesting configuration of cantilevered fluid-conveying pipes with an integrated ...