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Maoying Zhou
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China

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Journal article
Published: 01 June 2021 in AIP Advances
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Inspired by shallow-water sloshing in a moving tank, a novel type of vibration-based piezoelectric energy harvesting device composed of a piezoelectric bimorph beam and an extension tank is proposed in this paper. The structure and working principle of the proposed device are provided. Then, the effects of different heights of water filling in the tank on the performances of the harvester are studied and analyzed. Experiments are set up to investigate the actual device performance by changing the base excitation frequency and load resistance for different water heights. The results show that by modulating the water height, the resonant frequency and bandwidth can be adjusted, which can enhance the energy harvesting performance of the device at different ambient vibration frequencies. This study provides some clues to improve the performance of the vibration-based energy harvesting devices.

ACS Style

Yang Fu; Meiling Huang; Ruiming Wu; Feng Huang; Maoying Zhou; Suifan Chen; Qibing Wang; Qipeng Li. Piezoelectric vibration energy harvesting device based on water sloshing-inspired extensions. AIP Advances 2021, 11, 065205 .

AMA Style

Yang Fu, Meiling Huang, Ruiming Wu, Feng Huang, Maoying Zhou, Suifan Chen, Qibing Wang, Qipeng Li. Piezoelectric vibration energy harvesting device based on water sloshing-inspired extensions. AIP Advances. 2021; 11 (6):065205.

Chicago/Turabian Style

Yang Fu; Meiling Huang; Ruiming Wu; Feng Huang; Maoying Zhou; Suifan Chen; Qibing Wang; Qipeng Li. 2021. "Piezoelectric vibration energy harvesting device based on water sloshing-inspired extensions." AIP Advances 11, no. 6: 065205.

Review article
Published: 01 March 2021 in Physics of Fluids
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The outbreak of the coronavirus disease has drawn public attention to the transmission of infectious pathogens, and as major carriers of those pathogens, respiratory droplets play an important role in the process of transmission. This Review describes respiratory droplets from a physical and mechanical perspective, especially their correlation with the transmission of infectious pathogens. It covers the important aspects of (i) the generation and expulsion of droplets during respiratory activities, (ii) the transport and evolution of respiratory droplets in the ambient environment, and (iii) the inhalation and deposition of droplets in the human respiratory tract. State-of-the-art experimental, computational, and theoretical models and results are presented, and the corresponding knowledge gaps are identified. This Review stresses the multidisciplinary nature of its subject and appeals for collaboration among different fields to fight the present pandemic.

ACS Style

Maoying Zhou; Jun Zou. A dynamical overview of droplets in the transmission of respiratory infectious diseases. Physics of Fluids 2021, 33, 031301 .

AMA Style

Maoying Zhou, Jun Zou. A dynamical overview of droplets in the transmission of respiratory infectious diseases. Physics of Fluids. 2021; 33 (3):031301.

Chicago/Turabian Style

Maoying Zhou; Jun Zou. 2021. "A dynamical overview of droplets in the transmission of respiratory infectious diseases." Physics of Fluids 33, no. 3: 031301.

Original
Published: 08 July 2020 in Archive of Applied Mechanics
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In this paper, we investigate the problem for a classical piezoelectric vibration energy harvester. Exact theoretical solution to the problem is derived and compared to the solutions proposed in the literature. Asymptotic expansions of the solution are explored in the hope of finding a plausible simpler approximation of the solution and corresponding output performance measures. Dependence of the output performance measures upon the electromechanical coupling factor is therefore studied. Some tips are then provided for the design of piezoelectric energy harvester.

ACS Style

Maoying Zhou; Huijun Zhao. Revisit to the theoretical analysis of a classical piezoelectric vibration energy harvester. Archive of Applied Mechanics 2020, 90, 2379 -2395.

AMA Style

Maoying Zhou, Huijun Zhao. Revisit to the theoretical analysis of a classical piezoelectric vibration energy harvester. Archive of Applied Mechanics. 2020; 90 (11):2379-2395.

Chicago/Turabian Style

Maoying Zhou; Huijun Zhao. 2020. "Revisit to the theoretical analysis of a classical piezoelectric vibration energy harvester." Archive of Applied Mechanics 90, no. 11: 2379-2395.

Journal article
Published: 20 March 2020 in Applied Mathematical Modelling
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Piezoelectric vibration energy harvesters have attracted much attention due to its potential to replace currently popular batteries and to provide an sustainable power sources. Many researchers have proposed ways to increase the performance of piezoelectric energy harvesters like bandwidth, working frequency and output performance. Here in this contribution, we propose the method of using elastic extensions to tune the performance of a piezoelectric energy harvester. Mathematical model of the proposed device is derived and analyzed. Numerical simulations are done to investigate the influences of the derived parameters, like length ratio λl, bending stiffness ratio λB, and line density ratio λm. Results show that the elastic extension does change the motion of the proposed device and help tune the performance of piezoelectric energy harvesters.

ACS Style

Maoying Zhou; Yang Fu; Ban Wang; Huawei Ji. Investigation upon the performance of piezoelectric energy harvester with elastic extensions. Applied Mathematical Modelling 2020, 83, 438 -453.

AMA Style

Maoying Zhou, Yang Fu, Ban Wang, Huawei Ji. Investigation upon the performance of piezoelectric energy harvester with elastic extensions. Applied Mathematical Modelling. 2020; 83 ():438-453.

Chicago/Turabian Style

Maoying Zhou; Yang Fu; Ban Wang; Huawei Ji. 2020. "Investigation upon the performance of piezoelectric energy harvester with elastic extensions." Applied Mathematical Modelling 83, no. : 438-453.

Journal article
Published: 20 July 2019 in Sensors
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The approach to improve the output power of piezoelectric energy harvester is one of the current research hotspots. In the case where some sources have two or more discrete vibration frequencies, this paper proposed three types of magnetically coupled multi-frequency hybrid energy harvesters (MHEHs) to capture vibration energy composed of two discrete frequencies. Electromechanical coupling models were established to analyze the magnetic forces, and to evaluate the power generation characteristics, which were verified by the experimental test. The optimal structure was selected through the comparison. With 2 m/s2 excitation acceleration, the optimal peak output power was 2.96 mW at 23.6 Hz and 4.76 mW at 32.8 Hz, respectively. The superiority of hybrid energy harvesting mechanism was demonstrated. The influences of initial center-to-center distances between two magnets and length of cantilever beam on output power were also studied. At last, the frequency sweep test was conducted. Both theoretical and experimental analyses indicated that the proposed MHEH produced more electric power over a larger operating bandwidth.

ACS Style

Zhenlong Xu; Hong Yang; Hao Zhang; Huawei Ci; Maoying Zhou; Wen Wang; Aihua Meng. Design and Analysis of a Magnetically Coupled Multi-Frequency Hybrid Energy Harvester. Sensors 2019, 19, 3203 .

AMA Style

Zhenlong Xu, Hong Yang, Hao Zhang, Huawei Ci, Maoying Zhou, Wen Wang, Aihua Meng. Design and Analysis of a Magnetically Coupled Multi-Frequency Hybrid Energy Harvester. Sensors. 2019; 19 (14):3203.

Chicago/Turabian Style

Zhenlong Xu; Hong Yang; Hao Zhang; Huawei Ci; Maoying Zhou; Wen Wang; Aihua Meng. 2019. "Design and Analysis of a Magnetically Coupled Multi-Frequency Hybrid Energy Harvester." Sensors 19, no. 14: 3203.

Journal article
Published: 10 March 2019 in Materials
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It is well known that three-dimensional (3D) printing is an emerging technology used to produce customized implants and surface characteristics of implants, strongly deciding their osseointegration ability. In this study, Ti alloy microspheres were printed under selected rational printing parameters in order to tailor the surface micro-characteristics of the printed implants during additive manufacturing by an in situ, controlled way. The laser path and hatching space were responsible for the appearance of the stripy structure (S), while the bulbous structure (B) and bulbous–stripy composite surface (BS) were determined by contour scanning. A nano-sized structure could be superposed by hydrothermal treatment. The cytocompatibility was evaluated by culturing Mouse calvaria-derived preosteoblastic cells (MC3T3-E1). The results showed that three typical microstructured surfaces, S, B, and BS, could be achieved by varying the 3D printing parameters. Moreover, the osteogenic differentiation potential of the S, B, and BS surfaces could be significantly enhanced, and the addition of nano-sized structures could be further improved. The BS surface with nano-sized structure demonstrated the optimum osteogenic differentiation potential. The present research demonstrated an in situ, controlled way to tailor and optimize the surface structures in micro-size during the 3D printing process for an implant with higher osseointegration ability.

ACS Style

Lijun Shan; Abdul Amir H. Kadhum; M.S.H. Al-Furjan; Wenjian Weng; Youping Gong; Kui Cheng; Maoying Zhou; Lingqing Dong; Guojin Chen; Mohd S. Takriff; Abu Bakar Sulong. In Situ Controlled Surface Microstructure of 3D Printed Ti Alloy to Promote Its Osteointegration. Materials 2019, 12, 815 .

AMA Style

Lijun Shan, Abdul Amir H. Kadhum, M.S.H. Al-Furjan, Wenjian Weng, Youping Gong, Kui Cheng, Maoying Zhou, Lingqing Dong, Guojin Chen, Mohd S. Takriff, Abu Bakar Sulong. In Situ Controlled Surface Microstructure of 3D Printed Ti Alloy to Promote Its Osteointegration. Materials. 2019; 12 (5):815.

Chicago/Turabian Style

Lijun Shan; Abdul Amir H. Kadhum; M.S.H. Al-Furjan; Wenjian Weng; Youping Gong; Kui Cheng; Maoying Zhou; Lingqing Dong; Guojin Chen; Mohd S. Takriff; Abu Bakar Sulong. 2019. "In Situ Controlled Surface Microstructure of 3D Printed Ti Alloy to Promote Its Osteointegration." Materials 12, no. 5: 815.

Journal article
Published: 01 March 2019 in AIP Advances
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ACS Style

Maoying Zhou; Qinzhong Chen; Zhenlong Xu; Wen Wang. Piezoelectric wind energy harvesting device based on the inverted cantilever beam with leaf-inspired extensions. AIP Advances 2019, 9, 035213 .

AMA Style

Maoying Zhou, Qinzhong Chen, Zhenlong Xu, Wen Wang. Piezoelectric wind energy harvesting device based on the inverted cantilever beam with leaf-inspired extensions. AIP Advances. 2019; 9 (3):035213.

Chicago/Turabian Style

Maoying Zhou; Qinzhong Chen; Zhenlong Xu; Wen Wang. 2019. "Piezoelectric wind energy harvesting device based on the inverted cantilever beam with leaf-inspired extensions." AIP Advances 9, no. 3: 035213.

Journal article
Published: 05 December 2018 in Sensors
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This paper proposes and investigates a piezoelectric energy harvesting system based on the flow induced vibration of a piezoelectric composite cantilever pipe. Dynamic equations for the proposed energy harvester are derived considering the fluid-structure interaction and piezoelectric coupling vibration. Linear global stability analysis of the fluid-solid-electric coupled system is done using the numerical continuation method to find the neutrally stable vibration mode of the system. A measure of the energy harvesting efficiency of the system is proposed and analyzed. A series of simulations are conducted to throw light upon the influences of mass ratio, dimensionless electromechanical coupling, and dimensionless connected resistance upon the critical reduced velocity and the normalized energy harvesting efficiency. The results provide useful guidelines for the practical design of piezoelectric energy harvester based on fluid structure interaction and indicate some future topics to be investigated to optimize the device performance.

ACS Style

Maoying Zhou; Mohannad Saleh Hammadi Al-Furjan; Ban Wang. Modeling and Efficiency Analysis of a Piezoelectric Energy Harvester Based on the Flow Induced Vibration of a Piezoelectric Composite Pipe. Sensors 2018, 18, 4277 .

AMA Style

Maoying Zhou, Mohannad Saleh Hammadi Al-Furjan, Ban Wang. Modeling and Efficiency Analysis of a Piezoelectric Energy Harvester Based on the Flow Induced Vibration of a Piezoelectric Composite Pipe. Sensors. 2018; 18 (12):4277.

Chicago/Turabian Style

Maoying Zhou; Mohannad Saleh Hammadi Al-Furjan; Ban Wang. 2018. "Modeling and Efficiency Analysis of a Piezoelectric Energy Harvester Based on the Flow Induced Vibration of a Piezoelectric Composite Pipe." Sensors 18, no. 12: 4277.

Journal article
Published: 23 November 2018 in Applied Acoustics
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In this contribution, theoretical model of the induced vibration and energy harvesting performances of a piezoelectric tubular energy harvester is established and analyzed. Analytical solutions to the model are obtained with the help of a system of linear operator equations. A series of simulations are done to investigate the influences of mechanical and electrical load parameters upon output performances of the energy harvester. Analyses of the characteristic roots show possible way to simplify the problem with asymptotic method. Results for state variables in the piezoelectric tube show good linear dependence of elastic displacements upon radial coordinates. Simulations on output performances indicate that the external connected electrical circuits should be compatible with the intended working conditions of the piezoelectric tubular energy harvester. The model developed here is expect to be useful in the design for self-powered sensor networks in hydraulic piping systems.

ACS Style

Maoying Zhou; Yang Fu; Ban Wang; Mohannad Saleh Hammadi Al-Furjan. Vibration analysis of a longitudinal polarized piezoelectric tubular energy harvester. Applied Acoustics 2018, 146, 118 -133.

AMA Style

Maoying Zhou, Yang Fu, Ban Wang, Mohannad Saleh Hammadi Al-Furjan. Vibration analysis of a longitudinal polarized piezoelectric tubular energy harvester. Applied Acoustics. 2018; 146 ():118-133.

Chicago/Turabian Style

Maoying Zhou; Yang Fu; Ban Wang; Mohannad Saleh Hammadi Al-Furjan. 2018. "Vibration analysis of a longitudinal polarized piezoelectric tubular energy harvester." Applied Acoustics 146, no. : 118-133.

Review
Published: 01 February 2018 in Renewable and Sustainable Energy Reviews
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ACS Style

Maoying Zhou; Mohannad Saleh Hammadi Al-Furjan; Jun Zou; Weiting Liu. A review on heat and mechanical energy harvesting from human – Principles, prototypes and perspectives. Renewable and Sustainable Energy Reviews 2018, 82, 3582 -3609.

AMA Style

Maoying Zhou, Mohannad Saleh Hammadi Al-Furjan, Jun Zou, Weiting Liu. A review on heat and mechanical energy harvesting from human – Principles, prototypes and perspectives. Renewable and Sustainable Energy Reviews. 2018; 82 ():3582-3609.

Chicago/Turabian Style

Maoying Zhou; Mohannad Saleh Hammadi Al-Furjan; Jun Zou; Weiting Liu. 2018. "A review on heat and mechanical energy harvesting from human – Principles, prototypes and perspectives." Renewable and Sustainable Energy Reviews 82, no. : 3582-3609.

Article
Published: 22 January 2018 in Meccanica
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In this contribution, a novel type of piezoelectric tubular energy harvester based on fluctuating fluid pressure is investigated. Analytic model of the proposed energy harvester is built under the assumption of axisymmetric radial vibration. Exact solution of the piezoelectric vibrating tube is obtained with its output performances formulated. A series of numerical simulations are conducted to investigate the influences of geometrical parameters, input mechanical load parameters and output electrical load parameters upon the output performances of the proposed piezoelectric tubular energy harvester. The model and simulation results indicate the potential of the proposed piezoelectric tubular energy harvester. It is expected that the energy harvester be useful in powering wireless sensor network for the health monitoring of hydraulic systems, where fluid conveying pipe vibration is omnipresent.

ACS Style

Maoying Zhou; Yang Fu; Lei Liu; Zhenlong Xu; Mohannad Saleh Hammadi Al-Furjan; Wen Wang. Modeling and preliminary analysis of piezoelectric energy harvester based on cylindrical tube conveying fluctuating fluid. Meccanica 2018, 53, 2379 -2392.

AMA Style

Maoying Zhou, Yang Fu, Lei Liu, Zhenlong Xu, Mohannad Saleh Hammadi Al-Furjan, Wen Wang. Modeling and preliminary analysis of piezoelectric energy harvester based on cylindrical tube conveying fluctuating fluid. Meccanica. 2018; 53 (9):2379-2392.

Chicago/Turabian Style

Maoying Zhou; Yang Fu; Lei Liu; Zhenlong Xu; Mohannad Saleh Hammadi Al-Furjan; Wen Wang. 2018. "Modeling and preliminary analysis of piezoelectric energy harvester based on cylindrical tube conveying fluctuating fluid." Meccanica 53, no. 9: 2379-2392.

Journal article
Published: 02 November 2017 in Energies
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In this paper, a novel impact-based frequency up-converting hybrid energy harvester (FUCHEH) was proposed. It consisted of a piezoelectric cantilever beam and a driving beam with a magnetic tip mass. A solenoid coil was attached at the end of the piezoelectric beam. This innovative configuration amplified the relative motion velocity between magnet and coil, resulting in an enhancement of the induced electromotive force in the coil. An electromechanical coupling model was developed and a numerical simulation was performed to study the principle of impact-based frequency up-converting. A prototype was fabricated and experimentally tested. The time-domain and frequency-domain analyses were performed. Fast Fourier transform (FFT) analysis verified that fundamental frequencies and coupled vibration frequency contributes most of the output voltage. The measured maximum output power was 769.13 µW at a frequency of 13 Hz and an acceleration amplitude of 1 m/s2, which was 3249.4%- and 100.6%-times larger than that of the frequency up-converting piezoelectric energy harvesters (FUCPEH) and frequency up-converting electromagnetic energy harvester (FUCEMEH), respectively. The root mean square (RMS) voltage of the piezoelectric energy harvester subsystem (0.919 V) was more than 16 times of that of the stand-alone PEH (0.055 V). This paper provided a new scheme to improve generating performance of the vibration energy harvester with high resonant frequency working in the low-frequency vibration environment.

ACS Style

Zhenlong Xu; Wen Wang; Jin Xie; Zhonggui Xu; Maoying Zhou; Hong Yang. An Impact-Based Frequency Up-Converting Hybrid Vibration Energy Harvester for Low Frequency Application. Energies 2017, 10, 1761 .

AMA Style

Zhenlong Xu, Wen Wang, Jin Xie, Zhonggui Xu, Maoying Zhou, Hong Yang. An Impact-Based Frequency Up-Converting Hybrid Vibration Energy Harvester for Low Frequency Application. Energies. 2017; 10 (11):1761.

Chicago/Turabian Style

Zhenlong Xu; Wen Wang; Jin Xie; Zhonggui Xu; Maoying Zhou; Hong Yang. 2017. "An Impact-Based Frequency Up-Converting Hybrid Vibration Energy Harvester for Low Frequency Application." Energies 10, no. 11: 1761.