Experimental study on fatigue degradation of piezoelectric energy harvesters under equivalent traffic load conditions

Wang, Jun; Qin, Xiangzhen; Liu, Zhiming; Ding, Guangya; Cai, Guojun

doi:10.1016/j.ijfatigue.2021.106320

Cited by 25 publications

(12 citation statements)

References 38 publications

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“…In this work, the surface microstructure of PZT-5H piezoelectric transducers after 27 days of cyclic loading was observed by scanning electron microscope (SEM), and found cracks as shown in Figure 10 (Wang et al, 2021), with the length and width of about 1 mm and 10 μm. Furthermore, SEM was also used to observe the microstructure changes of piezoelectric ceramic laminates after cyclic loading test, and similar cracks were observed.…”

Section: Analysis Of Resultsmentioning

confidence: 87%

“…The reason may be that the positive piezoelectric effect of the piezoelectric ceramic stack transforms part of the mechanical energy into electric energy, resulting in a reduction in the mechanical energy of the subgrade. In this work, the surface microstructure of PZT-5H piezoelectric transducers after 27 days of cyclic loading was observed by scanning electron microscope (SEM), and found cracks as shown in Figure 10 ( Wang et al, 2021), with the length and width of about 1 mm and 10 mm. Furthermore, SEM was also used to observe the microstructure changes of piezoelectric ceramic laminates after cyclic loading test, and similar cracks were observed.…”

Section: Dynamic Responses Of the Subgradementioning

confidence: 85%

“…As the number of cycles increases, the open circuit current gradually decreases. The possible reason is that with the increase in loading cycles, damage occurs inside the piezoelectric ceramic stack (Wang et al, 2021), and the internal resistance of the piezoelectric ceramic stack increases, which results in the gradual decrease of the open circuit current. 4.2.3.…”

Section: Fatigue Characteristics and Power Generation Performance Of ...mentioning

confidence: 99%

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Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Ding

Xing

Chen

et al. 2023

Journal of Intelligent Material Systems and Structures

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The fatigue behaviour of a piezoelectric ceramic stack co-fired at low temperatures under the influence of a large cyclic dynamic load was studied. The piezoelectric ceramic stack is equivalent to a parallel plate capacitor with a charge source in parallel. The equations for the total current, output current and capacitor charging current of an equivalent device for an applied load were derived using Kirchhoff’s theoretical formula. A new type of fatigue test equipment was developed for continuous long-term M-shaped wave output. The piezoelectric ceramic stack is positioned between two concrete slabs, forming a pavement-subgrade piezoelectric structure. The fatigue behaviour of the piezoelectric ceramic stack was observed for 800,000 cycles of dynamic load. The results show that the dynamic load studied produced fatigue damage in the piezoelectric ceramic stack. As the number of dynamic loads increased, the electric output capacity of the piezoelectric ceramic stack decreased. Evident stage divisions were observed in the fatigue behaviour of the piezoelectric ceramic stack under cyclic dynamic loading. The electric output capacity of the stack decreased as the number of dynamic loads increased in the early and late stages, whereas it exhibited negligible change during the stable period.

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Section: Analysis Of Resultsmentioning

confidence: 87%

Section: Dynamic Responses Of the Subgradementioning

confidence: 85%

Section: Fatigue Characteristics and Power Generation Performance Of ...mentioning

confidence: 99%

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Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Ding

Xing

Chen

et al. 2023

Journal of Intelligent Material Systems and Structures

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“…However, scholars are more inclined to study the new structure of piezoelectric transducers, and studies examining its performance under the three‐field coupling of stress‐temperature‐moisture in road environments are scarce. Wang et al 15 studied the fatigue life and microscopic mechanism of depolarisation of PZT‐5H piezoelectric transducers under intermittent and continuous loads, respectively. Yang et al 16 tested the fatigue performance of stacked piezoelectric energy transducers and observed that the transducers exhibited good power output under a load of 150 kN and a loading cycle of 100 000 times.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on road piezoelectric energy harvesters' power generation performance under erosive environments

Wang

Liu

et al. 2022

Intl J of Energy Research

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Summary Piezoelectric energy harvesters (PEHs) located within the road surface structure are affected by vehicle loads as well as road environments such as rain and salt erosions. However, research on the latter aspect is lacking. In this study, a type of PZT‐5H piezoelectric transducer with excellent performance was fabricated and embedded in concrete and asphalt concrete test specimens, and subsequently, the variation laws of output voltage and output power of piezoelectric transducers were examined in an erosive environment. The test results indicate that, at first, the output voltage of piezoelectric transducers in concrete structures decreases rapidly to 20% and then remains stable with age; therefore, the final power generation must be considered as the design index of output power. Under the action of salt erosion, the output voltage of piezoelectric transducers decreases although a sudden increase in voltage was observed. Further, the trend of output voltage was found to change rapidly with the increase in sulphate concentration. The higher the chlorine‐salt concentration, the larger the decrease in output voltage. Finally, through comparisons of the piezoelectric transducers in different road surface structures, the open‐circuit voltage and maximum output power of the piezoelectric transducers in the asphalt concrete structure were found to be 100 and 10 000 times higher than those of the concrete structure, respectively. In conclusion, the results of this study confirm that the erosive environment affects the power‐generation performance of piezoelectric transducers to a certain extent, and thus, these results provide a reference for the future promotion and application of piezoelectric transducers on roads.

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“…Rajaguru modeled and analyzed the vibration of the power electronic module (PEM) structure, taking the random vibration of the vehicle as the excitation, and drew the conclusion that the vibration has an obvious influence on the fatigue life of the electronic structure [ 18 ]. Similarly, with the road load as the incentive, the research results of Wang show that even the piezoelectric energy collector specifically used to collect road vibration energy will experience the problem of performance degradation under the continuous action of traffic load [ 19 ]. Muhammad [ 20 ] studied the remaining useful life (RUL) of electronic modules under harsh random vibrations and operating conditions, analyzed the effects of vibration on the storage conditions and soft faults of the PCB solder joints, and estimated the random vibration fatigue damage of solder joints with the help of finite element software.…”

Section: Introductionmentioning

confidence: 99%

Research on the Reliability of a Core Control Unit of Highway Electromechanical Equipment Based on Virtual Sensor Data

Lin

Luo

et al. 2022

Sensors

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The printed circuit board (PCB) is the core control unit of electromechanical equipment. In order to determine the influence of the coupling vibration caused by vehicle–road interaction on the PCB reliability of roadside electromechanical equipment, first, the dynamic load of the vehicle tire is solved by establishing the dynamic model of a vehicle road. Then, the acceleration response data generated by road vibration are obtained by solving the road finite element model. Finally, the power density spectrum of the acceleration response is taken as input excitation, and the deformation response of the PCB under vehicle–road coupling vibration is analyzed. The experimental results show that when the vehicle is driving close to the roadside, the vibration caused by vehicle–road coupling will lead to a large deformation of the PCB, and the deformation value reaches 0.170 mm, which can cause structural damage to the PCB. This shows that the vehicle–road coupling vibration can affect the reliability of the roadside electromechanical equipment; thus, the optimal design of the PCB layout is created. After optimization, the first-order modal frequency of the PCB is increase by 5.4%, which reduces the risk of the components breaking away from the PCB substrate.

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Experimental study on fatigue degradation of piezoelectric energy harvesters under equivalent traffic load conditions

Cited by 25 publications

References 38 publications

Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Fatigue behaviour of piezoelectric ceramic stack under large cyclic dynamic loading

Experimental study on road piezoelectric energy harvesters' power generation performance under erosive environments

Research on the Reliability of a Core Control Unit of Highway Electromechanical Equipment Based on Virtual Sensor Data

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