A level set approach for optimal design of smart energy harvesters

Chen, Shikui; Gonella, Stefano; Chen, Wei; Liu, Wing Kam

doi:10.1016/j.cma.2010.04.008

Cited by 78 publications

(43 citation statements)

References 49 publications

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“…Chen S.(2010) [15] suggested that if we only consider the distribution of one material, the result of optimization will not satisfy our requirement. Considering the distribution of two material phase in the design domain simultaneously is very necessary.…”

Section: B Two-phase Piezoelectric Energy Harvesting Devices Modelmentioning

confidence: 98%

Topology Optimum Design of Piezoelectric Energy Harvesting Devices Using Two-Phase Piezoelectric Materials

Wan¹,

Zhang²,

Qin³

et al. 2017

Proceedings of the 2017 2nd International Conference on Modelling, Simulation and Applied Mathematics (MSAM2017)

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Abstract-The paper presents a two-phase FEM-based topology optimization for piezoelectric energy harvesting devices. The goal of this research is to improve energy conversion efficiency of the piezoelectric cantilevered plates as an energy harvesting device based on the piezoelectric effect when applied to external loads. Owing to the friability of piezoelectric material, the piezoelectric energy harvesting devices can contain both piezoelectric material and elastic material. Therefore, an alternative way to express the piezoelectric material property interpolation for two-phase materials structure has been proposed. With this method, the structure composed of two materials, including elastic material and piezoelectric material, is regarded as the design variable under the topology optimization formulation. It seems to be a more reasonable solution for the topology optimization of piezoelectric composite materials. The method of moving asymptotes (MMA) is used to update the design variables. The energy conversion efficiency is compared using a developed FEM-based optimization code to verify the performance of the proposed method. Some numerical examples are presented and investigated to verify the availability of the proposed method.

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Section: B Two-phase Piezoelectric Energy Harvesting Devices Modelmentioning

confidence: 98%

Topology Optimum Design of Piezoelectric Energy Harvesting Devices Using Two-Phase Piezoelectric Materials

Wan¹,

Zhang²,

Qin³

et al. 2017

Proceedings of the 2017 2nd International Conference on Modelling, Simulation and Applied Mathematics (MSAM2017)

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“…The energy harvesting device is assumed to be subjected only to static mechanical loads and so the EMCC may be rewritten as (Chen et al, 2010) …”

Section: Objective Functionmentioning

confidence: 99%

“…There have also been works performing topology optimization of energy harvesters using different design variables, for example the densities that define the presence of piezoelectric material in each finite element Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/jmps (Nakasone and Silva, 2009), or the geometry of elastic substructure (Wein et al, 2013). In Chen et al (2010), an approach for designing the optimal configuration of a cantilever and a cylindrical piezoelectric energy harvesters with single and multiple materials was presented. A procedure for converting an inverse problem of detecting flaws in piezoelectric structures into an iterative optimization problem was given in Nanthakumar et al (2013Nanthakumar et al ( , 2014Nanthakumar et al ( , 2016.…”

Section: Introductionmentioning

confidence: 99%

Topology optimization of piezoelectric nanostructures

Nanthakumar

Lahmer

Zhuang

et al. 2016

Journal of the Mechanics and Physics of Solids

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“…Although cantilever beams have several advantages such as a relatively low resonant frequency, a relatively high average strain, and ease of microfabrication, they have certain limitations including their inability to scavenge multidirectional vibration and a low strain limit. Therefore, the further modification of the three-dimensinal (3-D) shape of a piezoelectric element offers the potential for improving not only the conversion efficiency but also the lifetime of the piezoelectric vibration-based energy [18,19].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional ceramic molding process based on microstereolithography for the production of piezoelectric energy harvesters

Maruo

Sugiyama

Daicho³

et al. 2014

SPIE Proceedings

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A three-dimensional (3-D) molding process using a master polymer mold produced by microstereolithography has been developed for the production of piezoelectric ceramic elements. In this method, ceramic slurry is injected into a 3-D polymer mold via a centrifugal casting process. The polymer master mold is thermally decomposed so that complex 3-D piezoelectric ceramic elements can be produced. As an example of 3-D piezoelectric ceramic elements, we produced a spiral piezoelectric element that can convert multidirectional loads into a voltage. It was confirmed that a prototype of the spiral piezoelectric element could generate a voltage by applying a load in both parallel and lateral directions in relation to the helical axis. The power output of 123 pW was obtained by applying the maximum load of 2.8N at 2 Hz along the helical axis. In addition, to improve the performance of power generation, we utilized a two-step sintering process to obtain dense piezoelectric elements. As a result, we obtained a sintering body with relative density of 92.8 %. Piezoelectric constant d 31 of the sintered body attained to -40.0 pC/N. Furthermore we analyzed the open-circuit voltage of the spiral piezoelectric element using COMSOL multiphysics. As a result, it was found that use of patterned electrodes according to the surface potential distribution of the spiral piezoelectric element had a potential to provide high output voltage that was 20 times larger than that of uniform electrodes.

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A level set approach for optimal design of smart energy harvesters

Cited by 78 publications

References 49 publications

Topology Optimum Design of Piezoelectric Energy Harvesting Devices Using Two-Phase Piezoelectric Materials

Topology Optimum Design of Piezoelectric Energy Harvesting Devices Using Two-Phase Piezoelectric Materials

Topology optimization of piezoelectric nanostructures

Three-dimensional ceramic molding process based on microstereolithography for the production of piezoelectric energy harvesters

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