Article
Thermodynamics
Junwu Kan, Weilin Liao, Shuyun Wang, Song Chen, Xin Huang, Zhonghua Zhang
Summary: A piezoelectric wind energy harvester excited indirectly by a coupler via magnetic-field coupling is proposed in this paper, which can transform composite vibration energy into electric energy; The feasibility of the structure and principle of the harvester is proved through theoretical simulations and experiments, and it is found that the performance of the harvester can be adjusted by changing the structural parameters.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Instruments & Instrumentation
Emiliano Del Priore, Giovanni Paolo Romano, Luca Lampani
Summary: Miniaturization, multi-functionality, and low power consumption are important in the development of electronic devices today. Piezoelectric materials have emerged as a promising solution due to their ability to convert mechanical energy into electrical energy. This research investigates an aeroelastic piezoelectric energy harvester that utilizes vortex-induced vibrations and galloping. A numerical model is developed to solve the coupled electro-aeroelastic problem for each electrical interface, and the results are compared to experimental data collected from wind tunnel tests. The validated model is used to optimize the performance of the harvester in a low wind speed range.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Xia Li, Xiaoxiao Wang, Haigang Tian, Chengming Wang, Benxue Liu
Summary: A vortex-induced flutter composite nonlinear piezoelectric energy harvester (VFPEH) with symmetrical airfoils on both sides of a cylindrical bluff body is designed to solve the problem of self-energy supply for vehicle-mounted micro-sensors, bridge detection, and other low-power electronic devices. The VFPEH shows better output performance compared to the classic vortex-induced energy harvester (VEH) and flutter energy harvester (FEH) under the same size, thanks to the coupling of vortex-induced vibration and flutter. The VFPEH achieves a maximum output power of 6.47 mW, which is significantly higher than the VEH (0.05 mW) and FEH (0.26 mW), when the wind velocity range is 2 m/s-15 m/s.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Applied
Wan Sun, Yue Zhang, Guanggui Cheng, Shangwen He, Zhaorui Yang, Jianning Ding
Summary: This study proposes a bluff body non-rotational galloping-based piezoelectric wind energy harvester (BNRGH) that solves the problem of amplitude saturation in traditional collectors at high wind speeds by using rotatable hinges. The output voltage of BNRGH remains a continuous linear increase even in higher wind velocity range, thus providing a design guidance for small size galloping-based energy harvesters to achieve excellent output performance.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Mechanical
Junlei Wang, Bing Xia, Daniil Yurchenko, Haigang Tian
Summary: This paper proposes a novel flow-induced vibration piezoelectric energy harvester with different cutting angle cylinders to improve energy harvesting efficiency. The theoretical models and aerodynamic parameters are derived and solved through simulation and experimental prototypes are fabricated to verify the accuracy of the model. The results show that by using different cutting angle cylinders, the performance of the energy harvester can be significantly enhanced.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Thermodynamics
Xiaozhen Du, Mi Zhang, Heng Chang, Yu Wang, Hong Yu
Summary: The study introduces a micro windmill piezoelectric energy harvester based on vortex-induced vibration (VIV) which effectively improves the efficiency of wind energy conversion through experiments and theoretical research. By increasing airflow speed and fixing a bluff body in the flow field to induce vortex, it can effectively excite the vibration of the piezoelectric film.
Article
Energy & Fuels
Qiangguo Zhu, Guangqing Wang, Youcheng Zheng, Zhoulong Liu, Shuo Zhou, Beiqi Zhang
Summary: This paper investigates the coupling nonlinearities and dynamics between a tri-stable piezoelectric vibration energy harvester (T-PVEH) and a nonlinear AC-DC rectifying circuit. The electromechanical equations are derived to characterize the mechanical and energetic dynamics, as well as the coupling nonlinearities. The results show that optimizing the T-PVEH configuration and circuit topology can enhance the energy harvesting efficiency and effective broadband.
Article
Energy & Fuels
Keyu Chen, Qiang Gao, Shitong Fang, Donglin Zou, Zhengbao Yang, Wei-Hsin Liao
Summary: This paper presents the design and experimental validation of an auxetic nonlinear piezoelectric energy harvester, which improves efficiency and bandwidth compared to traditional systems. Experimental results show higher power output and bandwidth expansion for the auxetic energy harvesters.
Article
Chemistry, Analytical
Antiopi-Malvina Stamatellou, Anestis Kalfas
Summary: A nonlinear piezoelectric energy harvester was tested with different combinations of aerodynamic and harmonic base excitation to study power output and efficiency, showing that efficiency is related to excitation frequency and phase difference between excitation and response.
Article
Engineering, Mechanical
Chenxia Wan, Haigang Tian, Xiaobiao Shan, Tao Xie
Summary: This paper presents the design of a novel energy harvester that can transform vibration modes and improve harvesting performance. By attaching a piezoelectric device to an unconstrained trailing-edge flap, the harvester is able to convert fluid-structure-electric coupled fields to generate electricity. The study explores the influence of flap motions and structural parameters on flow field, vibration characteristics, and harvesting performance using mathematical modeling, simulation, and experimental setups. The results demonstrate the effectiveness of the design in improving the harvesting performance and provide important insights for future development of more efficient piezoelectric energy harvesters for low-power wireless sensor systems.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Mechanical
Weilin Liao, Yijie Wen, Junwu Kan, Xin Huang, Shuyun Wang, Zhe Li, Zhonghua Zhang
Summary: This paper proposes a joint-nested structure piezoelectric energy harvester (JNS-PWEH) to improve the weak power generation performance of existing harvesters. Experimental results show that the performance of the JNS-PWEH has been significantly improved and further optimization of the structure can enhance the output performance. Therefore, the joint nested structure is of great importance in enhancing indirect-excitation piezoelectric energy harvesters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
Carlos R. dos Santos, Douglas R. Q. Pacheco, Haithem E. Taha, Mohamed Y. Zakaria
Summary: This study investigates the nonlinear behavior of a flexible beam under airflow and validates the accuracy of the energy harvester model. The matching of experimental and computational results highlights the importance of appropriately modeling structural and aerodynamic nonlinearities for reproducing system behavior.
COMPOSITE STRUCTURES
(2021)
Article
Energy & Fuels
Tianyi Shi, Gang Hu, Lianghao Zou, Jie Song, Kenny C. S. Kwok
Summary: This paper presents an omnidirectional wind energy harvester that uses an orthogonal bibeam system instead of a traditional single-beam system, showing excellent performance in most cases of beam skewness. Benefiting from wind-induced vibrations, the harvester demonstrates higher efficiency and output energy in a natural wind environment.
Article
Engineering, Marine
Junlei Wang, Bing Xia, Daniil Yurchenko, Grzegorz Litak, Yong Li, Haigang Tian
Summary: This paper proposes a novel vortex-induced vibration piezoelectric energy harvester attached to two asymmetrical splitter plates (VIVPEH-S) to convert the vibration mode from VIV to galloping and improve the energy harvesting efficiency. The effects of installation angles on the vibration characteristics and harvesting performance are experimentally investigated, and the vortex shedding characteristic and mode conversion mechanism are revealed by CFD simulation. The results demonstrate significant improvement in energy harvesting performance with the installation of asymmetrical splitter plates.
Article
Engineering, Mechanical
Guangdong Sui, Xiaobiao Shan, Chengwei Hou, Haigang Tian, Jingtao Hu, Tao Xie
Summary: This paper proposes a magnetically coupled piezoelectric energy harvester based on fluid-induced vibration to achieve high-efficiency performance in low-velocity water environments. The results show significant improvements in the initial vibration velocity, velocity bandwidth, and maximum output voltage compared to non-magnetic PEH. The proposed structure provides a reference for the optimization of underwater energy harvesting and lays a foundation for further interconnection of self-powered sensors.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Chemistry, Analytical
Xiaobiao Shan, Haigang Tian, Han Cao, Ju Feng, Tao Xie
Article
Chemistry, Multidisciplinary
Lu Zhang, Xiaobiao Shan, Tao Xie
APPLIED SCIENCES-BASEL
(2020)
Article
Optics
Chongqiu Yang, Xiaobiao Shan, Tao Xie
Article
Physics, Applied
Ying Gong, Xiaobiao Shan, Hong Hu, Tao Xie, Zhengbao Yang
APPLIED PHYSICS LETTERS
(2020)
Article
Materials Science, Multidisciplinary
Xiaobiao Shan, Haigang Tian, Tao Xie
Summary: This paper presents a piezoelectric harvester array with three EHVs, which demonstrated significant differences in vibration response and harvesting performance compared to a single EHV. The EHV array showed a potential increase of up to 36.23% in overall harvesting performance at certain spacing distances compared to a single EHV.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2021)
Article
Chemistry, Analytical
Tao Xie, Ke Wang, Ruifeng Li, Xinyue Tang
Article
Thermodynamics
Haigang Tian, Xiaobiao Shan, Guangdong Sui, Tao Xie
Summary: This study presents a novel piezoelectric aeroelastic energy harvester with different rod-shaped attachments, which enhance harvesting performance by changing flow field characteristic and enhancing aerodynamic loads. Harvesters with square rod show better output characteristic, especially in aeroelastic vibration and harvesting performance.
Article
Automation & Control Systems
Lu Zhang, Xiaobiao Shan, Sheng Yan, Tao Xie
Summary: This paper introduces a piezoelectric drag reducer (PDR) that can be embedded into the wall of an underwater vehicle to reduce wall friction drag. The drag reduction characteristics of the PDR with different arrangement angles and the influence of key parameters on turbulence characteristics are analyzed through simulation and experimental tests. The results show that the proposed PDR can achieve high-efficiency drag reduction, and the arrangement and control parameter selection methods are effective.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Lu Zhang, Kai Li, Xiaobiao Shan, Yao Zhai, Sheng Yan, Tao Xie
Summary: This article proposes an active drag reducer for micro underwater vehicles, which can effectively reduce friction drag by using a piezoelectric actuator embedded into the outer wall of the vehicle. This drag reducer allows for on-demand drag reduction and energy saving by integrating with the vehicle's motion monitoring system. Simulation and experimental results demonstrate that the proposed microdrag reducer achieves significant drag reduction and positive energy saving.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Chemistry, Analytical
Han Yu, Xiaofan Zhang, Xiaobiao Shan, Liangxing Hu, Xingxu Zhang, Chengwei Hou, Tao Xie
Summary: This study presents a novel bird-shaped broadband piezoelectric energy harvester based on a two-DOF crossed beam for low-frequency environmental vibrations. The harvester features a rotating cantilever mounted on a double-hinged beam, effectively reducing its natural frequencies. Numerical simulations and experimental results demonstrate the multi-frequency energy harvesting capabilities of the proposed harvester, achieving remarkable power output at low frequencies. This work provides a new perspective for efficiently harvesting low-frequency vibration energy, which is crucial for powering electronic devices.
Article
Chemistry, Analytical
Zhaowei Min, Chengwei Hou, Guangdong Sui, Xiaobiao Shan, Tao Xie
Summary: As one of the most important modes of transportation, ensuring the safety of trains and railway tracks is crucial. This study focuses on a new type of arch beam piezoelectric stack energy harvester for railway systems. The research discusses the impact of external resistance, load, pre-stress, and load frequency on the energy harvesting performance through simulation analysis and experimental verification. The results provide valuable reference for subsequent experiments in real-world environments.
Article
Social Sciences, Interdisciplinary
Xiaobiao Shan, Jian Cao, Tao Xie
Summary: This teaching research paper proposes a novel idea which combines practical engineering problems with the Engineering System Modeling and Simulation course. The research results of mathematical modeling, numerical simulation, 3D entity modeling, finite element simulation and analysis are integrated into the teaching content of the course. The course is based on HIT aerospace engineering course and designed to meet the requirements of promoting high-level talent training. It aims to benefit the postgraduate students in mechanical engineering by enhancing their understanding of basic and professional knowledge, research ability, engineering ability, thinking ability, and innovative consciousness.
Article
Computer Science, Information Systems
Lu Zhang, Xiaobiao Shan, Tao Xie
Article
Computer Science, Information Systems
Dengyun Wu, Qinkai Han, Hong Wang, Yi Zhou, Wenshan Wei, Han Wang, Tao Xie
