Dynamic and energetic characteristics of a tri-stable magnetopiezoelastic energy harvester

Kim, Pilkee; Seok, Jongwon

doi:10.1016/j.mechmachtheory.2015.08.002

Cited by 93 publications

(80 citation statements)

References 23 publications

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“…Zhou et al 35 obtained high-energy output voltage in a wide frequency range of 4-22 Hz by changing the magnet inclination angle shown in Figure 4B. Later, based on the same nonlinear energy-harvesting device, Zhou et al 44,45 and Kim et al 46,47 proposed a tristable energy-harvesting concept. The theoretical and experimental results demonstrated that the tristable energy harvester with shallow potential wells can more easily undergo high-energy inter-well oscillations under low-level excitations than its bistable counterparts because of their higher potential.…”

Section: Energy-harvesting Performance and Analysismentioning

confidence: 99%

“…Under random base excitations, Li et al 63 found that tristable harvesters with shallower potential wells generate more power than bistable harvesters, which is in agreement with the conclusion for harmonic base excitation cases. [44][45][46][47] There are some new structures proposed for the design of nonlinear energy harvesters. Different from the aforementioned nonlinear energy harvesters that can only harness vibration energy from one direction, Su et al 64,65 developed a two degrees of freedom (2DOF) broadband magnet-induced dual-cantilever PEH.…”

Section: Energy-harvesting Performance and Analysismentioning

confidence: 99%

See 1 more Smart Citation

High-Performance Piezoelectric Energy Harvesters and Their Applications

Yang

Zhou

et al. 2018

Joule

959

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: Energy-harvesting Performance and Analysismentioning

confidence: 99%

Section: Energy-harvesting Performance and Analysismentioning

confidence: 99%

High-Performance Piezoelectric Energy Harvesters and Their Applications

Yang

Zhou

et al. 2018

Joule

959

415

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“…e bistable configuration attaching the nonlinearity can achieve its high energy output and broaden the frequency performance through its motion on high orbit. e tristable model has a relationship with the locations of tip and magnets but without significant improvement upon the energy output density [17]. e shapes of the quadstable structures compared with the bistable and tristable ones are adverse to the energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study of Nonlinear and Electro‐Magneto‐Mechanical‐Based Piezoelectric Vibration Energy Harvester

Sun

Zhang

2019

Shock and Vibration

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This paper presents a folded nonlinear electro-magneto-mechanical (EMM) vibration-based piezoelectric energy harvester system, which is built on the cantilevered beam structure and consists of one host beam and two substrate plates. The performance of the linearity and nonlinearity to the proposed EMM system is evaluated and compared. Moreover, the voltage response in time history and the phase portrait are studied under an external rectifier circuit with a resistor. The results show that the nonlinearity of the reported EMM system changes the coherent resonance vibration mode from single to double under a harmonic base excitation within the frequency range of 20 Hz–50 Hz. Meanwhile, the substrate plate D contributes more averaged voltage output at a lower frequency while the substrate plate A contributes the voltage output at the relatively higher frequency for the nonlinear EMM system. The experimental study indicates that the proposed nonlinear EMM vibration-based piezoelectric energy harvester can yield a total voltage of 8.133 V@35.53 Hz while the baseline structure only produces 1.724 V@38.81 Hz. In addition, the bandwidth range of high-power output is enlarged by the nonlinear EMM system, which makes this device more flexible and applicable to absorb the wasted vibration energy generated by industrial machines and public facilities.

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“…In some applications, such as magnetic bearings, pumps, couplings, springs, medical instruments, etc. [1][2][3][4][5][6], the calculation of interaction force, torque and field is very important [7][8][9][10][11][12][13]. The interaction is related to shape, magnetization direction, magnetic polarization, and relative position of the permanent magnets outside the magnet dimensions.…”

Section: Introductionmentioning

confidence: 99%

Interaction Forces and Torques between Two Perpendicular Magnetic Tubes

Li¹

2018

JMAG

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Cylinders, tubes, cuboids, etc. are basic magnet shapes used in permanent magnet machines. The relative positions between magnets include parallel, perpendicular, or inclined. The force and torque between two cuboid magnets of almost any status and two cylindrical magnets with paralleled axes have been solved. Using the theory of magnetic charges and magnetic Coulomb's law, this study derives a mathematical model for interaction forces and torques between two perpendicular magnetic tubes in three dimensions. Using this model, the effects of tube relative positions on the interaction forces and torques is analyzed by numerical calculation. The model can also express interaction forces and torques between a magnetic tube and magnetic cylinder or between two magnetic cylinders when the inner radius of one magnetic tube is zero or the radii of both tubes are zero. This study provides the theoretical background for magnetic tube and cylinder applications, such as magnetic drive or control across space in mechanical, medical treatment, chemical industry, food production, aerospace, etc.

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Dynamic and energetic characteristics of a tri-stable magnetopiezoelastic energy harvester

Cited by 93 publications

References 23 publications

High-Performance Piezoelectric Energy Harvesters and Their Applications

High-Performance Piezoelectric Energy Harvesters and Their Applications

Theoretical and Experimental Study of Nonlinear and Electro‐Magneto‐Mechanical‐Based Piezoelectric Vibration Energy Harvester

Interaction Forces and Torques between Two Perpendicular Magnetic Tubes

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