Virtual prototypes of energy harvesting systems for industrial applications

Hadaš, Zdeněk; Janák, Luděk; Smilek, Jan

doi:10.1016/j.ymssp.2018.03.036

Cited by 39 publications

(18 citation statements)

References 30 publications

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“…An interesting aspect concerns into the shape versatility of such materials making them suitable for many design applications, as shown by [37], also contributing to diversify its application possibilities -a review on it is addressed in [43]. Among the most promising ones, some examples can be found in different knowledge areas, as in medicine for powering pacemakers [23], the electrical engineering and telecommunications, for industrial facilities [14] and Internet of Things (IoF) wireless devices power supplying [19]; in mechanics, as way for power recovering from friction losses on vehicle suspensions [1] or from skyscrapers oscillations [44] or even for damping structural vibrations [13,40].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Characterization of a Bistable Energy Harvester Dynamical System

Lopes

Peterson

Cunha

2019

Springer Proceedings in Physics

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Section: Introductionmentioning

confidence: 99%

Nonlinear Characterization of a Bistable Energy Harvester Dynamical System

Lopes

Peterson

Cunha

2019

Springer Proceedings in Physics

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“…The developed model can be used, for example, for optimization studies of multilayer piezoelectric structures where a large amount of various configurations must be examined. This model provides a useful tool for such analyses and enables to design effective energy harvesting devices (Hadas et al, 2018). In our next work, the effectivity of vibration energy harvesting for low-power piezoelectric applications employing polyvinylidene fluoride (PVDF) or BaTiO 3 will be compared with piezoelectric or macro-fiber composite (MFC) materials (upon consideration of thin-beam theory restrictions—that is, no large deflections may occur).…”

Section: Discussionmentioning

confidence: 99%

Modeling of electromechanical response and fracture resistance of multilayer piezoelectric energy harvester with residual stresses

Machů

Ševeček

Hadaš

et al. 2020

Journal of Intelligent Material Systems and Structures

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The article focuses on a modeling and subsequent optimization of a novel layered architecture of the vibration piezoceramic energy harvester composed of ZrO2/Al2O3/BaTiO3 layers and containing thermal residual stresses. The developed analytical/numerical model allows to determine the complete electromechanical response and the apparent fracture toughness of the multilayer vibration energy harvester, upon consideration of thermal residual stresses and time-harmonic kinematic excitation. The derived model uses the Euler–Bernoulli beam theory, Hamilton’s variational principle, and a classical laminate theory to determine the first natural frequency, steady-state electromechanical response of the beam upon harmonic vibrations, and also the mechanical stresses within particular layers of the harvester. The laminate apparent fracture toughness is computed by means of the weight function approach. A crucial point is the further optimization of the layered architecture from both the electromechanical response and the fracture resistance point of view. Maximal allowable excitation acceleration of the harvester upon which the piezoelectric layer will not fail is determined. It makes possible to better use the harvester’s capabilities in a given application and simultaneously guarantee its safe operation. Outputs of the derived analytical model were validated with finite element method simulations and available experimental results, and a good agreement between all approaches was obtained.

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“…The main aim of this paper was to present the proposed concept of metamaterial for energy harvesting (Hadas et al, 2018) and sensing purposes (Ksica et al, 2019). The used concept of metamaterial uses the stain steel auxetic structure with smart materials in middle layer of structure.…”

Section: Discussionmentioning

confidence: 99%

Concept of Metamaterial With Piezoelectric Elements for Cyber-Physical System Applications

Hadaš¹,

Marcián²,

Rubes³

et al. 2020

Engineering Mechanics 2020

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This paper deals with a metamaterial for sensing purposes under Industry 4.0 applications. The presented of metamaterial is based on an auxetic structure which is made by Direct Metal Laser Sintering technology. The stain steel auxetic structure could integrate smart material elements or systems for electromechanical conversions. The proposed concept of metamaterial uses the auxetic structure with piezoelectric elements or stacks to transduce external load of structure into electric signal. The auxetic structure could provide uniform mechanical load on several smart piezoelectric elements in middle layers due to negative Poisson ration. The paper presents a FEM simulation of this concept and analysis of coupled electromechanical system under harmonic excitation. Deformation of auxetic structure with piezoceramic PZT plates is presented and the voltage response is analyzed. The assembly of metamaterial system with piezoelectric PVDF in case of soft application is also presented and it will be tested under future development.

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Virtual prototypes of energy harvesting systems for industrial applications

Cited by 39 publications

References 30 publications

Nonlinear Characterization of a Bistable Energy Harvester Dynamical System

Nonlinear Characterization of a Bistable Energy Harvester Dynamical System

Modeling of electromechanical response and fracture resistance of multilayer piezoelectric energy harvester with residual stresses

Concept of Metamaterial With Piezoelectric Elements for Cyber-Physical System Applications

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