Article
Engineering, Electrical & Electronic
Felipe A. Costa de Oliveira, Davies William de Lima Monteiro, Dalton Martini Colombo
Summary: This paper presents a study on a MEMS based micro-cantilever device with Aluminum Nitride thin film as a piezoelectric material for energy harvesting and vibration sensing. The device achieved a power output of 0.491 mu W at the resonance frequency of 163 Hz, showing potential for use as an energy harvester for low-power electronics and as a vibration sensor.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Nanoscience & Nanotechnology
Zohre Moradi, Farzad Ebrahimi, Mohsen Davoudi
Summary: This paper investigates the possibility of energy harvesting and vibration of a three-layered beam using nonlocal strain gradient theory. It explores the potential of two piezoelectric layers and one core layer made of nonpiezoelectric material on an elastic foundation. The study provides a basis for future research on energy harvesting at small scales.
ADVANCES IN NANO RESEARCH
(2023)
Article
Materials Science, Ceramics
Dongyu Xu, Yan Hu, Xianlong Bu, Huaicheng Chen, Hongyu Jia
Summary: This paper develops a flexible d(31) type piezoelectric macro fiber composite (MFC) cantilever harvester and investigates its vibration energy harvesting properties. The research results show that the MFC cantilever harvester has a good voltage response to the excitation signal, with the largest open circuit voltage amplitude appearing at the resonance frequency. The open circuit voltage amplitude is sensitive to the vibration acceleration, increasing linearly when the acceleration is less than 2.0 g.
JOURNAL OF ELECTROCERAMICS
(2023)
Article
Energy & Fuels
Xiangdong Xie, Jiankun Zhang, Zijing Wang, Lingjie Li, Guofeng Du
Summary: A novel energy harvester of piezoelectric coupled cantilever array (PCCA) is proposed, which introduces nonlinear magnetic force to differentiate the natural frequencies of PCCs and widen energy harvesting bandwidth of PCCA. The effect of significant factors on PCC voltage, PCC natural frequency, and PCCA bandwidth is deeply studied and analyzed by experiments and simulations.
Article
Engineering, Multidisciplinary
Chaoran Liu, Rui Zhao, Kaiping Yu, Heow Pueh Lee, Baopeng Liao
Summary: A novel energy harvesting device is proposed in this paper, based on vibration localization to reduce the force transmitted to the base, achieving simultaneous energy harvesting and vibration isolation. The device consists of a quasi-zero stiffness support and piezoelectric cantilever beams, allowing for flexible enhancement of energy harvesting performance by adjusting key parameters.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Instruments & Instrumentation
Jiwen Fang, Bo Fan, Chong Li, Mingming Lv
Summary: Low-frequency vibration is widespread in nature and vibration energy harvesting is considered a reliable and sustainable method for continuous power supply. Designing a bio-inspired mechanical structure to improve the efficiency of energy harvesting by mimicking the flapping wing motion of Diptera insects is a feasible approach.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Yu Chen, Zhichun Yang, Zhaolin Chen, Kui Li, Le Wang, Shengxi Zhou
Summary: This paper investigates a multibifurcated piezoelectric energy harvester (MBPEH) with coupled bending and torsional vibrations to enhance energy harvesting performance. The theoretical model is verified by the finite element method (FEM) and experimental results, with good agreement in both output amplitude and response frequency bands. The study reveals the multimodal response mechanism of the MBPEH and analyzes the influence of bifurcated angle and length of bifurcated beams on energy harvesting performance. It is further revealed that the asymmetry of bifurcated beams is conducive to energy harvesting. The Y-shaped BTM-MBPEH demonstrates better energy harvesting performance in medium and low-frequency bands compared to the bending and axial mode (BAM).
ACTA MECHANICA SINICA
(2022)
Article
Mechanics
Somnath Karmakar, S. Chakraverty
Summary: This paper aims to investigate the influence of different elastic foundations on the free vibrations of piezoelectric sandwich Euler nanobeam with flexoelectricity based on nonlocal strain gradient theory. Three different types of elastic foundations: constant, linear, and quadratic, were considered. The vibration frequencies under three different classical boundary conditions (S-S, C-S, and C-C) were obtained using the Adomian decomposition method. Additionally, the effects of piezoelectricity and flexoelectricity on the vibrations were discussed in detail.
Article
Engineering, Mechanical
Z. Y. Xiang, J. K. Zhang, S. J. Li, S. L. Xie, F. P. Liu, R. D. Zhu, D. K. He
Summary: A piezoelectric cantilever vibration energy collector (PCVEC) was developed and tested to harvest friction-induced vibration (FIV) energy. The results show that PCVEC effectively converts FIV energy into electrical energy. The deformation capability of PCVEC is influenced by the mass and stiffness of the cantilever beam, with higher mass and stiffness resulting in weaker deformation capability and a decrease in output voltage.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Yingjun Sang, Yuanyuan Fan, Fangxiu Wang, Xiaoxin Zhang, Yan Yang, Ming Zhang
Summary: This paper studies the vibration detection technique based on the piezoelectric cantilever structure and analyzes the relationship between the resonance frequency and structure parameters. The experimental results show that the designed piezoelectric cantilever beam can achieve real-time vibration state detection with high output voltage and energy storage capability.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Engineering, Electrical & Electronic
Nan Shao, Jiawen Xu, Xiaosu Xu
Summary: This paper presents a two-degree-of-freedom piezoelectric energy harvesting system with a stopper for wideband operation. By optimizing the parameters, the frequency responses of the resonant peaks can be widened and a large amplitude voltage output can be achieved. It is demonstrated that arranging the stopper at the free end of the inner beam yields better performance.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Mechanical
Z. Y. Xiang, J. L. Mo, H. H. Qian, W. Chen, D. B. Luo, Z. R. Zhou
Summary: By installing a PZTbeam on the brake system, vibration reduction and energy harvesting were achieved, with the vibration energy being converted into electrical energy through the deformation of the PZTbeam. The PZTbeam significantly reduces the real part of the complex eigenvalues of the brake system without changing the unstable vibration frequency and mode shape.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Computer Science, Information Systems
Laihu Peng, Yubao Qi, Jianting Liu, Yuan Sun, Hongfei Zu, Xin Ru
Summary: This study designed and demonstrated a dual-piezoelectric energy harvesting system, driven by a cantilever beam and featuring a multipoint energy harvesting strategy. The research found that the dual-piezoelectric energy harvesting device has a higher energy harvesting efficiency than single-piezoelectric energy harvesting devices.
Article
Chemistry, Analytical
Xiaomin Xue, Qing Sun, Qiangli Ma, Jiajia Wang
Summary: This study focuses on the electromechanical characteristics of piezoelectric harvesters and proposes a coupled electromechanical model for a variety of harvesters.
Article
Chemistry, Multidisciplinary
Hao Yu, Feng Liang, Yu Qian, Junjie Gong, Yao Chen, An Gao
Summary: This paper investigates the vibration suppression performance and natural properties of fluid-conveying pipes with periodically varying cross-sections. The flexural wave equation for substructure pipes is established based on the classical beam model and traveling wave property, and the spectral element method is used for semi-analytical solutions. The paper reveals that the band gap of the pipe system is induced by geometrical differences in the substructure cross-section, and the number of cells does not contribute to the band gap region but has significant effects on amplitude attenuation, natural frequencies, and mode shapes. The impact of fluid-structure interaction is more evident in pipes with smaller numbers of cells, and the spectral element method is shown to be more effective than the transfer matrix method for analyzing the characteristics of band gap and free vibration of dynamical structures in phononic crystals.
APPLIED SCIENCES-BASEL
(2021)
