Article
Chemistry, Multidisciplinary
Min Sub Kwak, Mahesh Peddigari, Ha Young Lee, Yuho Min, Kwi-Il Park, Jong-Hyun Kim, Woon-Ha Yoon, Jungho Ryu, Sam Nyung Yi, Jongmoon Jang, Geon-Tae Hwang
Summary: This article demonstrates a magneto-mechano-electric (MME) generator that converts a gentle alternating current magnetic field into electricity. By integrating a piezoelectric single crystal and an electromagnetic induction structure, the generator achieves a high output power, suitable for operating a high-power consumption IoT environmental monitoring system.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Physical
Hailing Fu, Xutao Mei, Daniil Yurchenko, Shengxi Zhou, Stephanos Theodossiades, Kimihiko Nakano, Eric M. Yeatman
Summary: This paper comprehensively reviews the state-of-the-art progress in rotational energy harvesting, including energy characteristics, harvester categories, methodologies, mechanisms, and applications. Key developments, critical challenges, and potential research directions and opportunities are summarized and discussed based on progress to date.
Article
Chemistry, Physical
Xia Cao
Summary: There is a challenge in utilizing electromagnetic energy from moving objects, but a car model sliding on a simple power road (SPR) shows promising results with four 28 W fluorescent tube lamps being lit up. An energy-velocity model is proposed to make use of the electromagnetic energy generated through friction between the SPR and the car model, revealing that the energy increases with speed at low speed and the power generated by high-speed collision also increases rapidly. Furthermore, the successful construction of the first SPR on an actual road opens up possibilities for solving the energy crisis.
Article
Nanoscience & Nanotechnology
Ziran Du, Gaoyan Zhang, Kun Chen, Cheng Zhou, Xiaoshuai Zhu, Yuxiang Zhang, Kang Chen, Hao-Yang Mi, Yaming Wang, Chuntai Liu, Changyu Shen
Summary: This study developed a double-layered MXene/Polylactic acid fabric resonance cavity structure, which not only improved the EMI shielding effect but also converted mechanical energy into electricity like a triboelectric nanogenerator. This provides new insights into designing high-performance EMI shielding shields and integrating them with energy harvesting capabilities.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Thermodynamics
Hongxiang Zou, Meng Li, Linchuan Zhao, Xinwen Liao, Qiuhua Gao, Ge Yan, Ronghua Du, Kexiang Wei, Wenming Zhang
Summary: This study proposes a human-friendly biomechanical energy harvester that utilizes a cooperative compliant traction mechanism. The harvester is driven by the knee joint through a compliant medium without any mechanical components, adding no weight or restraint to the knee joint. The harvester works in collaboration with the user's walking/running, collecting energy when the user does negative work. The use of frequency up-conversion and mechanical rectification improves the efficiency of electromechanical conversion. The prototype of this HF-BEH can generate power with little impact on mobility, and it has been shown to enable self-powered emergency call, positioning and tracking, health monitoring, and physical therapy. Human-vehicle interaction through self-powered wireless sensing based on HF-BEH has also been demonstrated to improve the safety of individuals with limited responsiveness and mobility in traffic environments.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Analytical
Yue Zhou, Jinchao Cui, Wenan Jiang
Summary: In this paper, a novel bursting energy harvesting method is proposed using an externally and parametrically excited post-buckled beam. Multiple-frequency oscillation with two slow commensurate excitation frequencies is employed to observe complex bursting patterns and analyze the behaviors of the bursting response. The comparison between single and two slow commensurate excitation frequencies shows that the latter can improve the harvesting voltage.
Review
Green & Sustainable Science & Technology
Qinlin Cai, Songye Zhu
Summary: This paper presents the first state-of-the-art review on simultaneous vibration control and energy harvesting strategy. It highlights the rapid advances in this field over the past decade and discusses the feasibility, designs, and potential applications of dual-function devices. The power performance of these devices is predicted to be on the kilowatt level, making them suitable for powering structural health monitoring systems or control systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Fan Bo, Jiwen Fang, Jiuchun Zhao, Li Chong, Wang Jia, Mingming Lv
Summary: This paper proposes a novel bionic multi-domain energy harvester based on the fluttering behavior of dipteran insects. By simulating the skeletal and muscular structures of dipteran insects, the device is able to harvest both vibration and electromagnetic energy, leading to improved energy harvesting efficiency. After optimization, the output voltage and power of the energy harvester have been significantly increased.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Mohammadreza Gholikhani, Seyed Yashar Beheshti Shirazi, Gamal M. Mabrouk, Samer Dessouky
Summary: Safety and energy are essential for sustainable transportation and energy harvesting from roadways has potential to impact both requirements. The hybrid electromagnetic energy harvesting prototype utilizes linear generator and rack-pinion mechanisms to generate electrical power efficiently. Experimental tests and analytical models show promising results in power generation capabilities despite the small scale of the prototype.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Analytical
Tra Nguyen Phan, Jesus Javier Aranda, Bengt Oelmann, Sebastian Bader
Summary: This paper investigates the performance of four different electromagnetic vibration energy harvesters and determines that the harvester with two opposing magnets performs the best, while the Halbach array with three magnets and one coil configuration provides the highest mass power density. The study also reveals the limitations of using the electromagnetic coupling coefficient as a metric for harvester optimization when the goal is to maximize output power.
Article
Chemistry, Analytical
Yi-Ren Wang, Chun-Hsiao Kuo
Summary: This study aims to enhance conventional vibration energy harvesting systems by repositioning the piezoelectric patch in the middle of a fixed-fixed elastic steel sheet. A baffle is strategically installed to introduce a slapping force and improve power conversion. The results show that the second mode yields better power generation benefits and the enhanced system with the added baffle surpasses traditional VEH systems in voltage generation.
Article
Materials Science, Ceramics
Jian Li, Xinxin Han, Xiaobo Rui, Hang Li, Yu Zhang, Wen Zhang, Zhoumo Zeng
Summary: This paper proposes a piezoelectric-electromagnetic energy harvester based on magnetic coupling for wind energy harvesting. The prototype utilizes magnetic force to transmit mechanical energy and generate electricity. The magnetic coupling extends the lifespan of the piezoelectric ceramic, and the presence of multiple magnets increases the output power. The rational arrangement of the magnets allows for a small start-up wind speed.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Xin Sun, Chenjing Shang, Haoxiang Ma, Changzheng Li, Liang Xue, Qingyue Xu, Zihong Wei, Wanli Li, Yaxiaer Yalikun, Ying-Chih Lai, Yang Yang
Summary: This study proposes a solid-liquid-interfaced, tube-shaped tribo-electric-electromagnetic hybrid nanogenerator (TTEHG) for efficiently capturing wave energy. The TTEHG overcomes the challenges of low contact intimacy and energy power density in existing designs. Experimental results demonstrate that the TTEHG exhibits excellent output performance and can power various functional electronic devices.
Article
Thermodynamics
Ge Shi, Wentao Zeng, Yinshui Xia, Jubing Xa, Shengyou Jin, Qing Li, Xiudeng Wang, Huakang Xia, Yidie Ye
Summary: This study presents a floating piezoelectric electromagnetic hybrid wave vibration energy harvester that is actuated by a rotating wobble ball. The kinematic equation of the rotating wobble ball under the influence of the wave is established by simplifying the ocean wave model. One notable feature of the proposed harvester is its ability to harvest wave vibration energy using a frequency up-conversion mechanism. Experimental results demonstrate that the hybrid energy harvester can efficiently collect low-frequency wave vibrations and generate electrical power.
Review
Nanoscience & Nanotechnology
Joao V. Vidal, Vladislav Slabov, Andrei L. Kholkin, Marco P. Soares dos Santos
Summary: The paper provides a comprehensive review of recent breakthroughs in electromagnetic-triboelectric vibrational energy harvesting, including various structures and transduction mechanisms. It highlights the potential of hybrid E-TENGs to efficiently convert mechanical motion into electric energy for diverse applications.
NANO-MICRO LETTERS
(2021)
Article
Nanoscience & Nanotechnology
L. R. Corr, D. T. Ma
Article
Acoustics
Hui Zhang, Lawrence R. Corr, Tianwei Ma
JOURNAL OF SOUND AND VIBRATION
(2018)
Article
Engineering, Mechanical
Hui Zhang, Lawrence R. Corr, Tianwei Ma
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2018)
Article
Engineering, Mechanical
Hui Zhang, Lawrence R. Corr, Tianwei Ma
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2018)
Article
Multidisciplinary Sciences
Jian Yu, Enze Ma, Tianwei Ma
SCIENTIFIC REPORTS
(2017)
Article
Environmental Studies
Zhenning Li, Hao Yu, Xiaofeng Chen, Guohui Zhang, David Ma
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2019)
Article
Environmental Studies
Qian Zhang, Hao Yu, Zhenning Li, Guohui Zhang, David T. Ma
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2020)
Article
Chemistry, Physical
Jian Yu, Tianwei Ma
Article
Chemistry, Physical
Jian Yu, Tianwei Ma
Summary: The distribution of nano-sized pores in an electrode has a profound impact on the electrode capacitive response under a salinity gradient. By utilizing the pore-size effect, highly efficient extraction of the Gibbs free energy can be achieved.
Article
Ergonomics
Zhenning Li, Yusheng Ci, Cong Chen, Guohui Zhang, Qiong Wu, Zhen (Sean) Qian, Panos D. Prevedouros, David T. Ma
ACCIDENT ANALYSIS AND PREVENTION
(2019)
Article
Public, Environmental & Occupational Health
Zhenning Li, Cong Chen, Qiong Wu, Guohui Zhang, Cathy Liu, Panos D. Prevedouros, David T. Ma
ANALYTIC METHODS IN ACCIDENT RESEARCH
(2018)
Article
Physics, Multidisciplinary
Jian Yu, Enze Ma, Tianwei Ma
COMMUNICATIONS PHYSICS
(2018)
Article
Engineering, Mechanical
Xuanen Kan, Yanjun Lu, Fan Zhang, Weipeng Hu
Summary: A blade disk system is crucial for the energy conversion efficiency of turbomachinery, but differences between blades can result in localized vibration. This study develops an approximate symplectic method to simulate vibration localization in a mistuned bladed disk system and reveals the influences of initial positive pressure, contact angle, and surface roughness on the strength of vibration localization.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Zimeng Liu, Cheng Chang, Haodong Hu, Hui Ma, Kaigang Yuan, Xin Li, Xiaojian Zhao, Zhike Peng
Summary: Considering the calculation efficiency and accuracy of meshing characteristics of gear pair with tooth root crack fault, a parametric model of cracked spur gear is established by simplifying the crack propagation path. The LTCA method is used to calculate the time-varying meshing stiffness and transmission error, and the results are verified by finite element method. The study also proposes a crack area share index to measure the degree of crack fault and determines the application range of simplified crack propagation path.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Rongjian Sun, Conggan Ma, Nic Zhang, Chuyo Kaku, Yu Zhang, Qirui Hou
Summary: This paper proposes a novel forward calculation method (FCM) for calculating anisotropic material parameters (AMPs) of the motor stator assembly, considering structural discontinuities and composite material properties. The method is based on multi-scale theory and decouples the multi-scale equations to describe the equivalence and equivalence preconditions of AMPs of two scale models. The effectiveness of this method is verified by modal experiments.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Hao Zhang, Jiangcen Ke
Summary: This research introduces an intelligent scheduling system framework to optimize the ship lock schedule of the Three Gorges Hub. By analyzing navigational rules, operational characteristics, and existing problems, a mixed-integer nonlinear programming model is formulated with multiple objectives and constraints, and a hybrid intelligent algorithm is constructed for optimization.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Jingjing He, Xizhong Wu, Xuefei Guan
Summary: A sensitivity and reliability enhanced ultrasonic method has been developed in this study to monitor and predict stress loss in pre-stressed multi-layer structures. The method leverages the potential breathing effect of porous cushion materials in the structures to increase the sensitivity of the signal feature to stress loss. Experimental investigations show that the proposed method offers improved accuracy, reliability, and sensitivity to stress change.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Benyamin Hosseiny, Jalal Amini, Hossein Aghababaei
Summary: This paper presents a method for monitoring sub-second or sub-minute displacements using GBSAR signals, which employs spectral estimation to achieve multi-dimensional target detection. It improves the processing of MIMO radar data and enables high-resolution fast displacement monitoring from GBSAR signals.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Xianze Li, Hao Su, Ling Xiang, Qingtao Yao, Aijun Hu
Summary: This paper proposes a novel method for bearing fault identification, which can accurately identify faults with few samples under complex working conditions. The method is based on a Transformer meta-learning model, and the final result is determined by the weighted voting of multiple models.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Xiaomeng Li, Yi Wang, Guangyao Zhang, Baoping Tang, Yi Qin
Summary: Inspired by chaos fractal theory and slowly varying damage dynamics theory, this paper proposes a new health monitoring indicator for vibration signals of rotating machinery, which can effectively monitor the mechanical condition under both cyclo-stationary and variable operating conditions.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Hao Wang, Songye Zhu
Summary: This paper extends the latching mechanism to vibration control to improve energy dissipation efficiency. An innovative semi-active latched mass damper (LMD) is proposed, and different latching control strategies are tested and evaluated. The latching control can optimize the phase lag between control force and structural response, and provide an innovative solution to improve damper effectiveness and develop adaptive semi-active dampers.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Menghao Ping, Xinyu Jia, Costas Papadimitriou, Xu Han, Chao Jiang, Wang-Ji Yan
Summary: Identification of non-Gaussian processes is a challenging task in engineering problems. This article presents an improved orthogonal series expansion method to convert the identification of non-Gaussian processes into a finite number of non-Gaussian coefficients. The uncertainty of these coefficients is quantified using polynomial chaos expansion. The proposed method is applicable to both stationary and nonstationary non-Gaussian processes and has been validated through simulated data and real-world applications.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Lei Li, Wei Yang, Dongfa Li, Jianxin Han, Wenming Zhang
Summary: The frequency locking phenomenon induced by modal coupling can effectively overcome the dependence of peak frequency on driving strength in nonlinear resonant systems and improve the stability of peak frequency. This study proposes the double frequencies locking phenomenon in a three degrees of freedom (3-DOF) magnetic coupled resonant system driven by piezoelectricity. Experimental and theoretical investigations confirm the occurrence of first frequency locking and the subsequent switching to second frequency locking with the increase of driving force. Furthermore, a mass sensing scheme for double analytes is proposed based on the double frequencies locking phenomenon.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Kai Ma, Jingtao Du, Yang Liu, Ximing Chen
Summary: This study explores the feasibility of using nonlinear energy sinks (NES) as replacements for traditional linear tuned mass dampers (TMD) in practical engineering applications, specifically in diesel engine crankshafts. The results show that NES provides better vibration attenuation for the crankshaft compared to TMD under different operating conditions.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Wentao Xu, Li Cheng, Shuaihao Lei, Lei Yu, Weixuan Jiao
Summary: In this study, a high-precision hydraulic mechanical stand and a vertical mixed-flow pumping station device were used to conduct research on cavitation signals of mixed-flow pumps. By analyzing the water pressure pulsation signal, it was found that the power spectrum density method is more sensitive and capable of extracting characteristics compared to traditional time-frequency domain analysis. This has significant implications for the identification and prevention of cavitation in mixed-flow pump machinery.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Xiaodong Chen, Kang Tai, Huifeng Tan, Zhimin Xie
Summary: This paper addresses the issue of parasitic motion in microgripper jaws and its impact on clamping accuracy, and proposes a symmetrically stressed parallelogram mechanism as a solution. Through mechanical modeling and experimental validation, the effectiveness of this method is demonstrated.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)
Article
Engineering, Mechanical
Zhifeng Shi, Gang Zhang, Jing Liu, Xinbin Li, Yajun Xu, Changfeng Yan
Summary: This study provides useful guidance for early bearing fault detection and diagnosis by investigating the effects of crack inclination and propagation direction on the vibration characteristics of bearings.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)