Details
| Original language | English |
|---|---|
| Article number | 112096 |
| Journal | International Journal of Solids and Structures |
| Volume | 264 |
| Early online date | 28 Dec 2022 |
| Publication status | Published - 1 Mar 2023 |
Abstract
Micro/nano-scale energy harvester is an enabling technology to provide sustained energy solutions for various micro/nano-electromechanical devices, this has attracted intensive research interests in both academia and industry in the past decades. Exploring various design possibilities for energy harvesters in terms of geometry, topology, materials as well as harnessing the interesting nonlinear responses have the potential to break the current limit of energy harvesters in terms of energy efficiency and power density. While most designs were limited to straight beams, in this work, we demonstrate that the nonlinear vibration of energy harvester is significantly affected by curved shapes and we show the possibility of improving its performance by tuning the structural curvature. By developing a couple stress-based piezo-flexoelectric curved beam model and using the multiple time scale method for the nonlinear frequency response analysis, the effect of structural curvature in the nanoscale arc-shaped beam is quantitatively evaluated.
Keywords
- Couple stress, Curved beam, Energy harvesting, Flexoelectricity, Nonlinear frequency response, Piezoelectricity
ASJC Scopus subject areas
- Mathematics(all)
- Modelling and Simulation
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Mathematics(all)
- Applied Mathematics
Sustainable Development Goals
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In: International Journal of Solids and Structures, Vol. 264, 112096, 01.03.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Curved flexoelectric and piezoelectric micro-beams for nonlinear vibration analysis of energy harvesting
AU - Thai, Tran Quoc
AU - Zhuang, Xiaoying
AU - Rabczuk, Timon
N1 - Funding Information: Tran Quoc Thai and Xiaoying Zhuang would like to acknowledge the financial support from the Sofja Kovalevskaja Prize of the Alexander von Humboldt Foundation (Germany) and ERC Starting Grant ( 802205 ). The authors would like to acknowledge Dr. Kaifa Wang, Harbin Institute of Technology, Graduate School at Shenzhen for useful comments regarding the material parameters for the flexoelectric model.
PY - 2023/3/1
Y1 - 2023/3/1
N2 - Micro/nano-scale energy harvester is an enabling technology to provide sustained energy solutions for various micro/nano-electromechanical devices, this has attracted intensive research interests in both academia and industry in the past decades. Exploring various design possibilities for energy harvesters in terms of geometry, topology, materials as well as harnessing the interesting nonlinear responses have the potential to break the current limit of energy harvesters in terms of energy efficiency and power density. While most designs were limited to straight beams, in this work, we demonstrate that the nonlinear vibration of energy harvester is significantly affected by curved shapes and we show the possibility of improving its performance by tuning the structural curvature. By developing a couple stress-based piezo-flexoelectric curved beam model and using the multiple time scale method for the nonlinear frequency response analysis, the effect of structural curvature in the nanoscale arc-shaped beam is quantitatively evaluated.
AB - Micro/nano-scale energy harvester is an enabling technology to provide sustained energy solutions for various micro/nano-electromechanical devices, this has attracted intensive research interests in both academia and industry in the past decades. Exploring various design possibilities for energy harvesters in terms of geometry, topology, materials as well as harnessing the interesting nonlinear responses have the potential to break the current limit of energy harvesters in terms of energy efficiency and power density. While most designs were limited to straight beams, in this work, we demonstrate that the nonlinear vibration of energy harvester is significantly affected by curved shapes and we show the possibility of improving its performance by tuning the structural curvature. By developing a couple stress-based piezo-flexoelectric curved beam model and using the multiple time scale method for the nonlinear frequency response analysis, the effect of structural curvature in the nanoscale arc-shaped beam is quantitatively evaluated.
KW - Couple stress
KW - Curved beam
KW - Energy harvesting
KW - Flexoelectricity
KW - Nonlinear frequency response
KW - Piezoelectricity
UR - http://www.scopus.com/inward/record.url?scp=85144816817&partnerID=8YFLogxK
U2 - 10.1016/j.ijsolstr.2022.112096
DO - 10.1016/j.ijsolstr.2022.112096
M3 - Article
AN - SCOPUS:85144816817
VL - 264
JO - International Journal of Solids and Structures
JF - International Journal of Solids and Structures
SN - 0020-7683
M1 - 112096
ER -