Improving Output Power of Piezoelectric Energy Harvesters using Multilayer Structures

Zhu, Dibin; Beeby, Steve; Tudor, John; White, Neil; Harris, Nick

doi:10.1016/j.proeng.2011.12.049

Cited by 35 publications

(24 citation statements)

References 5 publications

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“…The load resistance, electrical and total damping ratio, α and β values of the bistable and nonlinear energy harvesters are also listed in the tables. Please note that the parasitic damping ratio, ξ p , is a function of the resonant frequency for electromagnetic energy harvesters according to Equation (9). As the resonant frequency is different in each case, ξ p is different and therefore the electrical damping ratio, ξ e , also varies in different cases.…”

Section: Simulation Resultsmentioning

confidence: 99%

A comparison of power output from linear and nonlinear kinetic energy harvesters using real vibration data

Beeby

Wang

Zhu

et al. 2013

Smart Mater. Struct.

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Abstract:The design of vibration energy harvesters (VEHs) is highly dependent upon the characteristics of the environmental vibrations present in the intended application. VEHs can be linear resonant systems tuned to particular frequencies or non-linear systems with either bi-stable operation or a Duffing-type response. This paper provides detailed vibration data from a range of applications, which has been made freely available for download through the Energy Harvesting Network's online data repository. In particular, this research shows that simulation is essential in designing and selecting the most suitable vibration energy harvester for particular applications. This is illustrated through C-based simulations of different types of VEHs, using real vibration data from a diesel ferry engine, a combined heat and power pump, a petrol car engine and a helicopter. The analysis shows that a bistable energy harvester only has a higher output power than a linear or Duffing-type nonlinear energy harvester with the same Q-factor when it is subjected to white noise vibration. The analysis also indicates that piezoelectric transduction mechanisms are more suitable for bistable energy harvesters than electromagnetic transduction. Furthermore, the linear energy harvester has a higher output power compared to the Duffing-type nonlinear energy harvester with the same Q factor in most cases. The Duffing-type nonlinear energy harvester can generate more power than the linear energy harvester only when it is excited at vibrations with multiple peaks and the frequencies of these peaks are within its bandwidth. Through these new observations, this paper illustrates the importance of simulation in the design of energy harvesting systems, with particular emphasis on the need to incorporate real vibration data. Keywords: Vibration energy harvesting, real vibration IntroductionEnergy harvesting (also known as energy scavenging) is the conversion of ambient energy present in the environment into electrical energy for the purpose of powering autonomous wireless electronics systems [1]. Kinetic energy harvesting involves the conversion of environmental vibrations and movements into electrical energy [2]. A kinetic energy harvester typically consists of a mechanical structure that couples the environmental kinetic energy to an electro-mechanical transducer that produces the electrical energy. Power conditioning electronics and some form of energy storage (e.g. battery or supercapacitor) are also normally required. In order to effectively couple the environmental kinetic energy to the transducer, the mechanical structure within the harvester must be carefully designed to match the characteristics of the environmental kinetic energy. A common approach is to match the resonant frequency of the harvester to a characteristic frequency present in the environmental vibrations. This means the optimum solution for harvesting vibration energy from an

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Section: Simulation Resultsmentioning

confidence: 99%

A comparison of power output from linear and nonlinear kinetic energy harvesters using real vibration data

Beeby

Wang

Zhu

et al. 2013

Smart Mater. Struct.

Self Cite

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“…With regard to the latter use case, the question of increasing the power output from piezoelectric bending beam energy harvesters has been approached by variation of 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 A c c e p t e d M a n u s c r i p t beam shapes [9][10][11] and by using multi-layer beams [12][13][14]. In the case of an impact driven piezo mechanism, fatigue evaluation has been performed in [15] and in [16], it was concluded that PZT ceramics deposited on ductile reinforcement layers can offer good reliability against fatigue.…”

Section: Introductionmentioning

confidence: 99%

Degradation of bimorph piezoelectric bending beams in energy harvesting applications

Pillatsch

Xiao

Shashoua

et al. 2017

Smart Mater. Struct.

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Abstract.Piezoelectric energy harvesting is an attractive alternative to battery powering for wireless sensor networks. However, in order for it to be a viable long term solution the fatigue life needs to be assessed. Many vibration harvesting devices employ bimorph piezoelectric bending beams as transduction elements to convert mechanical to electrical energy. This paper introduces two degradation studies performed under symmetrical and asymmetrical sinusoidal loading. It is shown that besides a loss in output power, the most dramatic effect of degradation is a shift in resonance frequency which is highly detrimental to resonant harvester designs. In addition, micro-cracking was shown to occur predominantly in piezoelectric layers under tensile stress. This opens the opportunity for increased life time through compressive operation or preloading of piezoceramic layers.

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“…Simulation results for output power of piezoelectric energy harvester can be improved by using multilayer structure regardless how piezoelectric layers are connected. Optimum load resistance in parallel connection is lower while open-circuit voltage is higher when piezoelectric layers are connected in series [10]. These show that piezoelectric layers are efficient in layer wise arrangement but only gap between connections affect the output voltage.…”

Section: Concept Of Compositementioning

confidence: 85%

Conceptual Review of Combine Energy Harvesting Material

Fadale¹

2017

IJERT

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Energy harvesting is important field now because of increasing demand and limited availability of resources. There are various ways in which we can tackle this problem such as finding out new resources, effective use of available resources, modification of technology etc. For energy harvesting most of the research has done on piezoelectric material. Even with combination of different material properties with piezoelectric material gives better result. This research paper is focused on utilization of micro energy to continuous energy generation with modification of material dimension, arrangement of material, combination of various materials.

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Improving Output Power of Piezoelectric Energy Harvesters using Multilayer Structures

Cited by 35 publications

References 5 publications

A comparison of power output from linear and nonlinear kinetic energy harvesters using real vibration data

A comparison of power output from linear and nonlinear kinetic energy harvesters using real vibration data

Degradation of bimorph piezoelectric bending beams in energy harvesting applications

Conceptual Review of Combine Energy Harvesting Material

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