Analysis of delamination of unimorph cantilever piezoelectric energy harvesters

Zeng, Song; Zhang, Chunwei; Wang, Kaifa; Wang, Baolin; Sun, Li

doi:10.1177/1045389x17754273

Cited by 13 publications

(7 citation statements)

References 35 publications

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“…Bimorphs can have passive layers in between two active layers. Unimorphs and bimorphs have proven to be the most promising method for microscale energy harvesting [122][123][124][125][126][127]. The use of unimorph and bimorph energy harvesters is also a developing part of vibrational-based energy harvesting.…”

Section: Vibration Sourcesmentioning

confidence: 99%

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Metamaterials for Acoustic Noise Filtering and Energy Harvesting

Mir

Mandal

Banerjee

2023

Sensors

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Artificial methods for noise filtering are required for the twenty-first century’s Factory vision 4.0. From various perspectives of physics, noise filtering capabilities could be addressed in multiple ways. In this article, the physics of noise control is first dissected into active and passive control mechanisms and then further different physics are categorized to visualize their respective physics, mechanism, and target of their respective applications. Beyond traditional passive approaches, the comparatively modern concept for sound isolation and acoustic noise filtering is based on artificial metamaterials. These new materials demonstrate unique interaction with acoustic wave propagation exploiting different physics, which is emphasized in this article. A few multi-functional metamaterials were reported to harvest energy while filtering the ambient noise simultaneously. It was found to be extremely useful for next-generation noise applications where simultaneously, green energy could be generated from the energy which is otherwise lost. In this article, both these concepts are brought under one umbrella to evaluate the applicability of the respective methods. An attempt has been made to create groundbreaking transformative and collaborative possibilities. Controlling of acoustic sources and active damping mechanisms are reported under an active mechanism. Whereas Helmholtz resonator, sound absorbing, spring-mass damping, and vibration absorbing approaches together with metamaterial approaches are reported under a passive mechanism. The possible application of metamaterials with ventilation while performing noise filtering is reported to be implemented for future Smart Cities.

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Section: Vibration Sourcesmentioning

confidence: 99%

Section: Vibration Sourcesmentioning

confidence: 99%

Metamaterials for Acoustic Noise Filtering and Energy Harvesting

Mir

Mandal

Banerjee

2023

Sensors

View full text Add to dashboard Cite

show abstract

“…[39] and Zeng et al. [40]. The poling directions of the piezoelectric and piezomagnetic materials are both along the z -axis.…”

Section: Equations and Derivationsmentioning

confidence: 99%

Energy harvesting from a nanopiezoelectric/piezomagnetic sandwich beam with porous properties

Fan

2020

Jnl of Sandwich Structures & Materials

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Piezoelectric/piezomagnetic energy harvester has attracted great interest, which can convert magnetic energy into electric power. However, the challenges are how to provide lasting electric energy to the nanoscale components and avoid the inherent brittleness of the piezoelectric and piezomagnetic materials. Therefore, a nanoporous piezoelectric/piezomagnetic beam with a storage circuit is proposed to be an energy harvester in this paper. The nanoporous beam is treated as a sandwich composite beam with the piezoelectric/piezomagentic core bulks and the surface or interface layers. Based on the surface effect theory and the Boit’s porous elasticity, the governing equations and the analytical solutions of the nanoporous piezoelectric/piezomagnetic energy harvester with the flexural mode are obtained. The numerical calculation points out that the resonant frequency, output power density and the output voltage depend on the surface materials parameters, porosity properties, solid-fluid coupling effects, the geometrical dimensions, as well as the piezoelectric/piezomagnetic materials composition of the structure. The results reveal that the resonant frequency interval can be controlled and the output electric power can be improved by adjusting the materials and geometrical parameters.

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“…The most commonly used piezoelectric materials for piezoelectric actuators are piezoelectric ceramics and piezoelectric composites. Piezoelectric ceramics have excellent piezoelectric properties and high efficiency in energy transduction (Zeng et al, 2018). However, the brittle nature of ceramics makes them susceptible to fracture and limits the applications of piezoelectric ceramic actuators in many areas (Tiwari and Srivastava, 2016).…”

Section: Introductionmentioning

confidence: 99%

Least-squares method for laminated beams with distributed braided piezoelectric composite actuators

Zhou

Wang

et al. 2020

Journal of Intelligent Material Systems and Structures

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Piezoelectric ceramics are a very popular material in the field of actuator technology due to their unique piezoelectric properties. However, the brittle behavior of ceramics endangers the reliability of piezoelectric actuators. In this article, the three-dimensional braided piezoelectric composite is utilized to ameliorate the reliability and driving capability of piezoelectric actuators. The static analysis of laminated beam with the distributed braided piezoelectric composite actuator is presented to study its driving capability. Based on the piezoelectric constitutive equations and Euler–Bernoulli beam theory, the governing equation of the piezoelectric laminated beam is derived. The least-squares method for the piezoelectric laminated beam is established to solve the derived governing equation. The current approach is validated by comparison with published results and finite element results. In the numerical examples, the effects of the number and spacing of the three-dimensional braided piezoelectric composite patches, actuator central location, actuator length, actuator thickness ratio, cantilever beam thickness, applied voltage and fiber volume fraction on the driving capability of the distributed braided piezoelectric composite actuator are investigated. This study suggests the potential use of the distributed braided piezoelectric composite actuator in intelligent structures and provides useful guidance for the design and optimization of piezoelectric actuators.

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Analysis of delamination of unimorph cantilever piezoelectric energy harvesters

Cited by 13 publications

References 35 publications

Metamaterials for Acoustic Noise Filtering and Energy Harvesting

Metamaterials for Acoustic Noise Filtering and Energy Harvesting

Energy harvesting from a nanopiezoelectric/piezomagnetic sandwich beam with porous properties

Least-squares method for laminated beams with distributed braided piezoelectric composite actuators

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