Meandering-trapezoidal shaped MEMS structure for low frequency vibration based energy harvesting applications

Debnath, Bapi; Kumar, R.; Shakeel, P. Mohamed

doi:10.1016/j.seta.2020.100881

Cited by 11 publications

(6 citation statements)

References 27 publications

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“…The concept is going to change everything you ever thought was real about the traditional MEMS system. Now is the time to tackle the urgent issue on the energy crisis; like other energy harvesting technologies, 54,55 MEMS systems 56,57 can tackle this challenge effectively.…”

Section: Discussionmentioning

confidence: 99%

A mathematical control for the pseudo-pull-in stability arising in a micro-electromechanical system

Yang

2022

Journal of Low Frequency Noise, Vibration and Active Control

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A micro-electromechanical system’s reliability depends strongly upon its periodic motion; however, the pull-in instability might arise when the applied voltage is high enough. No criterion is available to judge the reliability condition in a simple but effective way. This paper tackles this challenge mathematically. The sufficient conditions for the periodic motion and the pull-in instability of a micro-electromechanical system with a current-carrying conductor are established, respectively. There is an uncertain area, where the system behaves firstly periodic motion, and after a certain number of cycles, the pull-in instability occurs. This new phenomenon is called as a pseudo-pull-in stability (pseudo-periodic motion); its main factors affecting the pseudo-periodic motion are elucidated.

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Section: Discussionmentioning

confidence: 99%

A mathematical control for the pseudo-pull-in stability arising in a micro-electromechanical system

Yang

2022

Journal of Low Frequency Noise, Vibration and Active Control

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“…A global citizen is someone who understands the broader world and recognizes their position within it and can play an active cultural role in making the world more peaceful and sustainable. The idea of global civics training has begun to replace or overlap with trends within the education system, including multicultural education, peace education, human rights education, sustainable development education, and international education [10,11]. Even if the idea of global citizenship is not recent, in a modern, growing, and increasingly interconnected world, it is becoming ever more critical [12].…”

Section: Introduction To Sustainable Educational Development and Glob...mentioning

confidence: 99%

New Policy Research on Education Development and Global Citizenship in a Sustainable Environment

Fang

Zhang

Xiao³

et al. 2023

Sustainability

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At present, multinational and regional educational agencies and researchers have used academic development and global citizenship training to increase globalization. However, owing to the existence of emerging policies, these innovations have raised issues in the educational sector. Therefore, in this paper, EP-SE has been proposed for enhancing the sustainable environment in education and global citizenship. EP-SE seeks to elucidate the educational developments and reveal the part played by non-discursive components in ensuring global citizenship cooperation. The emerging policies for sustainable development emphasize the importance of moral ideals, personal accountability, and engaged global citizenship. Capitalist debate impartially privileges a real economy based on the individual and enhanced income. EP-SE has been developed within the current commodity conditions, critical democracy, and threats to educational development and can serve as a model for sustainable global citizenship development. The experimental results suggest that the proposed model achieves the highest performance compared with the other existing methods.

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“…Compared to other energy harvesting methods, it offers advantages such as simple structure and energy density, which has resulted in it garnering attention in the research field in terms of realising road energy harvesting technologies 4 . Common piezoelectric materials used in energy harvesting are lead zirconate titanate (PZT) and polyethylene xylene sulphide (PVDF) 5 . Typical transducer structures include Multilayer, Cymbal, Moonie, Stack, Bridge, and macro‐fiber composite 6,7 .…”

Section: Introductionmentioning

confidence: 99%

“…4 Common piezoelectric materials used in energy harvesting are lead zirconate titanate (PZT) and polyethylene xylene sulphide (PVDF). 5 Typical transducer structures include Multilayer, Cymbal, Moonie, Stack, Bridge, and macrofiber composite. 6,7 Zhao et al 8 provided a new and lowcost solution for the WIM system, and their piezoelectric ceramic sensing system calculated the dynamic load of the vehicle and the position of the wheels.…”

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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Meandering-trapezoidal shaped MEMS structure for low frequency vibration based energy harvesting applications

Cited by 11 publications

References 27 publications

A mathematical control for the pseudo-pull-in stability arising in a micro-electromechanical system

A mathematical control for the pseudo-pull-in stability arising in a micro-electromechanical system

New Policy Research on Education Development and Global Citizenship in a Sustainable Environment

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

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