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On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit
2022-12-14
发表期刊SMART MATERIALS AND STRUCTURES (IF:3.7[JCR-2023],3.8[5-Year])
ISSN0964-1726
EISSN1361-665X
卷号32期号:1
发表状态已发表 ; 已发表
DOI10.1088/1361-665X/aca941
摘要The introduction of a switched-mode bidirectional energy conversion circuit (BECC) facilitates the development of piezoelectric devices toward integrated and energy-efficient multi-functional designs. These new designs realize the organic combinations of two or more functions among energy harvesting (EH), vibration excitation (VE), and dynamic sensing. Yet, the structural effect after applying the BECC was not comprehensively investigated and strictly quantified. This letter analyzes the electromechanical joint dynamics of a piezoelectric structure using the BECC, which was developed after the synchronized triple bias-flip (S3BF) technique, under different EH and VE operation modes. It shows that the EH modes electrically induce an extra positive damping effect, while the VE modes induce a negative one. A lumped model and impedance analysis are used to evaluate the electrically induced damping and the energy conversion efficiency by the BECC. The closed-form expression of the vibration displacement under different operation modes is derived. Experiments are carried out under different operation modes and frequencies. The theoretical and experimental results show good agreement. They validate the damping tuning capability of BECC in either positive or negative damping directions. This switched-mode interface circuit offers a promising solution for building an adaptive dynamic control of piezoelectric structures with high energy efficiency. © 2022 IOP Publishing Ltd.
关键词Damping Energy conversion efficiency Energy efficiency Piezoelectricity Timing circuits Bidirectional energy conversion circuit Conversion circuits Damping effect Dynamics analysis Negative damping Operation mode Piezoelectric structures Structural damping Switched-mode Vibration excitation
收录类别EI ; SCOPUS
语种英语
出版者Institute of Physics
EI入藏号20225213294654
EI主题词Energy harvesting
EI分类号525.2 Energy Conservation ; 525.5 Energy Conversion Issues ; 701.1 Electricity: Basic Concepts and Phenomena ; 713.4 Pulse Circuits ; 931.1 Mechanics
原始文献类型Journal article (JA)
Scopus 记录号2-s2.0-85144471960
来源库Scopus
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/272833
专题信息科学与技术学院_硕士生
信息科学与技术学院_PI研究组_梁俊睿组
通讯作者Wei-Hsin Liao; Junrui Liang
作者单位
1.School of Information Science and Technology, ShanghaiTech University
2.Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong
3.Shanghai Engineering Research Center of Energy Efficient and Custom AI IC, Shanghai 201210, People’s Republic of China
第一作者单位信息科学与技术学院
通讯作者单位信息科学与技术学院
第一作者的第一单位信息科学与技术学院
推荐引用方式
GB/T 7714
Bao Zhao,Shiyi Liu,Wei-Hsin Liao,et al. On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit[J]. SMART MATERIALS AND STRUCTURES,2022,32(1).
APA Bao Zhao,Shiyi Liu,Wei-Hsin Liao,&Junrui Liang.(2022).On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit.SMART MATERIALS AND STRUCTURES,32(1).
MLA Bao Zhao,et al."On the positive and negative damping effect of piezoelectric structure using switched-mode bidirectional energy conversion circuit".SMART MATERIALS AND STRUCTURES 32.1(2022).
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