Energy Harvesting of Piezoelectric Stack Actuator From a Shock Event

Lee, Andrew J.; Ya, Wang; Inman, Daniel J.

doi:10.1115/1.4025878

Cited by 21 publications

(22 citation statements)

References 12 publications

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“…Flextensional transducers and stacks are the two most commonly used energy-harvesting structures under direction force excitations. [109][110][111][112] To improve power output, Wang et al 113 proposed a flex-compressive PEH that can be sustained under heavy loads of thousands of newtons ( Figure 14A). The bow-shaped center shell amplifies and transfers the applied load force to the symmetrically arranged piezoelectric stacks.…”

Section: New Structures Operating Under Tension/compression Excitationsmentioning

confidence: 99%

High-Performance Piezoelectric Energy Harvesters and Their Applications

Yang

Zhou

et al. 2018

Joule

961

415

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Energy harvesting holds great potential to achieve long-lifespan self-powered operations of wireless sensor networks, wearable devices, and medical implants, and thus has attracted substantial interest from both academia and industry. This paper presents a comprehensive review of piezoelectric energyharvesting techniques developed in the last decade. The piezoelectric effect has been widely adopted to convert mechanical energy to electricity, due to its high energy conversion efficiency, ease of implementation, and miniaturization. From the viewpoint of applications, we are most concerned about whether an energy harvester can generate sufficient power under a variable excitation. Therefore, here we concentrate on methodologies leading to high power output and broad operational bandwidth. Different designs, nonlinear methods, optimization techniques, and harvesting materials are reviewed and discussed in depth. Furthermore, we identify four promising applications: shoes, pacemakers, tire pressure monitoring systems, and bridge and building monitoring. We review new high-performance energy harvesters proposed for each application.

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Section: New Structures Operating Under Tension/compression Excitationsmentioning

confidence: 99%

High-Performance Piezoelectric Energy Harvesters and Their Applications

Yang

Zhou

et al. 2018

Joule

961

415

View full text Add to dashboard Cite

show abstract

“…To guide the design and fabrication of piezoelectric stack transducers, various models have been proposed. Lee et al (2014) adopted the single degree of freedom (SDOF) model to investigate the energy harvesting performance of the piezoelectric stack under an impulse input. Feenstra et al (2008) used the SDOF model to study the energy harvesting performance of the piezoelectric stack integrated into the backpack to capture the human motion–induced vibration energy.…”

Section: Introductionmentioning

confidence: 99%

Modeling and electromechanical performance analysis of frequency-variable piezoelectric stack transducers

Wang

Cai

Qin

et al. 2020

Journal of Intelligent Material Systems and Structures

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An exact analytical model of frequency-variable piezoelectric stack transducers is proposed, and their dynamic characteristics are studied in this article. Based on the linear piezoelasticity theory, the dynamic analytical solution is first derived, and then its correctness is validated by comparing it with the results of a special example in the previous literature and the ones of the experimental study. The effects of the tuning resistance and the layer number of the active element on the dynamic characteristics are discussed. Numerical results show that tuning the resistance and the layer number of the active element can enable the multi-frequency characteristics of the piezoelectric stack transducers. A proper layer number of the active element can minimize the short-circuited resonance frequency and the open-circuited anti-resonance frequency. These findings provide guidelines to design and optimize the piezoelectric stack transducers, which have promising potential in developing the multi-frequency Langevin transducers for some underwater sound and ultrasonic applications, such as ultrasonic cleaning, ultrasonic chemistry, and sonar radiators.

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“…Its piezoelectric coefficient d 33 is usually two times of d 31 and thus can output more power in d 33 mode when exposed to the same stress or strain. The stand-alone piezoelectric multilayer stack working at d 33 mode is widely researched (Lee et al, 2014;Zhao and Erturk, 2014). However, it has relatively low conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Boosting the efficiency of a footstep piezoelectric-stack energy harvester using the synchronized switch technology

Liu

Hua

Liu

et al. 2019

Journal of Intelligent Material Systems and Structures

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In this article, the self-supported power conditioning circuits are studied for a footstep energy harvester, which consists of a monolithic multilayer piezoelectric stack with a force amplification frame to extract electricity from human walking locomotion. Based on the synchronized switch harvesting on inductance (SSHI) technology, the power conditioning circuits are designed to optimize the power flow from the piezoelectric stack to the energy storage device under real-time human walking excitation instead of a simple sine waveform input, as reported in most literatures. The unique properties of human walking locomotion and multilayer piezoelectric stack both impose complications for circuit design. Three common interface circuits, for example, standard energy harvesting circuit, series-SSHI, and parallel-SSHI, are compared in terms of their output power to find the best candidate for the real-time-footstep energy harvester. Experimental results show that the use of parallel-SSHI circuit interface produces 74% more power than the standard energy harvesting counterpart, while the use of series-SSHI circuit demonstrates a similar performance in comparison to the standard energy harvesting interface. The reasons for such a huge efficiency improvement using the parallel-SSHI interface are detailed in this article.

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Energy Harvesting of Piezoelectric Stack Actuator From a Shock Event

Cited by 21 publications

References 12 publications

High-Performance Piezoelectric Energy Harvesters and Their Applications

High-Performance Piezoelectric Energy Harvesters and Their Applications

Modeling and electromechanical performance analysis of frequency-variable piezoelectric stack transducers

Boosting the efficiency of a footstep piezoelectric-stack energy harvester using the synchronized switch technology

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