Article
Automation & Control Systems
Yunjia Li, Jiaxing Li, Aijun Yang, Yong Zhang, Baoxiang Jiang, Dayong Qiao
Summary: This article describes the design and fabrication of an electromagnetic vibrational energy harvester (EVEH) based on hybrid microelectromechanical system and flexible circuit technology. Experimental results show the output performance under different acceleration conditions.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Energy & Fuels
Ludwin Molina Arias, Joanna Iwaniec, Marek Iwaniec
Summary: A system for harvesting energy from lower limb joints during walking is modeled and simulated in this work, with consideration given to the hip, knee, and ankle joints as energy sources. The maximum power generated by the energy harvester ranges from 1.4 mW (ankle joint) to 90 mW (knee joint) based on simulations with a constant walking speed of 4.5 km/h. The interaction between the electromagnetic structure and the power conditioning circuit is studied using state-space representation and Recurrence plots.
Article
Instruments & Instrumentation
Kensuke Kanda, Takashi Aiba, Kazusuke Maenaka
Summary: In this study, a MEMS cantilever based on the principle of harmonica reeds was utilized as an energy harvester, utilizing airflow-induced self-excited vibration. By controlling the warpage of the thin-film structure, energy harvesting from low flow velocities was achieved, with a significant reduction in cut-in flow velocity compared to conventional devices, while obtaining a high output power.
SENSORS AND MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhonghui Yu, Jikun Yang, Jiawei Cao, Lang Bian, Zhanmiao Li, Xiaoting Yuan, Zehuan Wang, Qunyang Li, Shuxiang Dong
Summary: In this study, a ceramic material with high piezoelectric coefficient and low dielectric loss was reported, and a magneto-mechano-electric coupled energy harvester based on this material was designed. The experiments showed that the energy harvester exhibited strong self-resonance effect and could generate high power density electrical output. This study provides a potential energy solution for self-powered sensor applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Minghui Yao, Jia Li, Yan Niu
Summary: This paper presents a piezoelectric impact cantilever in the bridge and a self-powered low power management circuit. By utilizing the piezoelectric effect to convert mechanical vibration into electrical signal oscillation, the efficiency of energy storage is significantly improved. The use of delay link and D-trigger for impedance matching is a key innovation in this study.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Geung Gyu Park, Eun Jung Lee, Sungmook Jung, Sunho Jeong, Hyun-Suk Kim, Youngmin Choi, Su Yeon Lee
Summary: High-performance flexible piezoelectric nanogenerators (PNGs) based on double composite films have been successfully fabricated, which exhibit high output voltage and current. The remarkable enhancement in performance is attributed to the geometrical strain confinement and high piezoelectric potential of the double nanocomposite films. The high output power generation from a double-nanocomposite-based PNG can be used for light-emitting diodes and biomechanical energy harvesting, offering perspectives into development of energy resources for portable, wearable, and self-powered electronic devices.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Analytical
Xinyi Wang, Jiaxing Li, Chenyuan Zhou, Kai Tao, Dayong Qiao, Yunjia Li
Summary: This paper presents a novel miniaturized electromagnetic vibrational energy harvester based on a torsional vibrating magnet, with microfabricated silicon torsional springs effectively reducing the device's footprint. The proposed EVEH is capable of generating stable output voltage and power under various conditions, showing promise for energy harvesting applications in small-scale systems.
Article
Engineering, Electrical & Electronic
Hiroaki Honma, Yukiya Tohyama, Hiroyuki Mitsuya, Gen Hashiguchi, Hiroyuki Fujita, Hiroshi Toshiyoshi
Summary: This study introduces a design method to enhance the output power of vibrational MEMS electrostatic energy harvesters by reducing reactive power. Analytical studies show that reducing internal parasitic capacitance and increasing buried oxide layer thickness significantly improves power factor and delivers more power effectively. By applying this design strategy to an actual device, a 2.9-fold increase in output power is achieved through optimizing the structure.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2021)
Article
Computer Science, Information Systems
Robert Urbina, Luis Baron, Juan-Pablo Carvajal, Manuel Perez, Carlos-Ivan Paez-Rueda, Arturo Fajardo, German Yamhure, Gabriel Perilla
Summary: Bicycles are gaining popularity worldwide as a sustainable mode of transportation. The smart bicycle paradigm allows for increased use through Internet of Things applications such as GPS tracking systems. This paradigm introduces the challenge of energy autonomy, which can be addressed through energy harvesting technology that captures kinetic or solar energy present in the cycling environment.
Article
Multidisciplinary Sciences
Vicky Butram, Alok Naugarhiya
Summary: The paper presents a piezoelectric energy harvester (PEH) based on split proof mass arrangement with MEMS technology, providing efficient power supply to sensor nodes. Through finite element method (FEM) simulation, the optimized split proof mass harvester reduces the resonance frequency by 31% and achieves a maximum output power of 1.6 μW at a resonant frequency of 57.1 Hz.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Mechanical
Aicheng Zou, Zhong Liu, Xingguo Han
Summary: A self-powered and low-power enhanced double synchronized switch harvesting (EDSSH) circuit is proposed, which can adapt to a sinusoidal voltage signal with the frequency of 1 to 312.5 Hz and has a high charging efficiency.
Article
Thermodynamics
Siavash Zargari, Ziaddin Daie Koozehkanani, Hadi Veladi, Jafar Sobhi, Alireza Rezania
Summary: An innovative origami structure is used to create a novel, flexible, lightweight, and low-cost triboelectric nanogenerator (Miura-Ori-TENG). A self-powered power management circuit is designed and implemented to maximize the harvested energy and directly use Miura-Ori-TENG electrical output. The combination of Miura-Ori-TENG and the proposed power management circuit shows potential for various applications in converting different types of kinetic energy into electrical energy.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Analytical
Nathan Jackson, Luis A. Rodriguez, Rahul Adhikari
Summary: This paper introduces a novel method to increase the bandwidth of a cantilever beam by using an embedded transverse out-of-plane movable mass. Experimental results demonstrated that the bandwidth can be significantly increased to over 40 Hz while maintaining high power output. Dense movable masses are better for high acceleration, low frequency applications, whereas lower density masses are better for low acceleration applications.
Article
Chemistry, Physical
Fayang Wang, Meitong Zhou, Pengfan Wu, Lingxiao Gao, Xin Chen, Xiaojing Mu
Summary: This study employs a high-performance piezo-electric vibration energy harvester (PVEH) as a new intelligent equipment for smart grids, addressing the issues of inconvenient battery replacement, short lifespan, and environmental pollution caused by disposable batteries used in wireless sensor nodes. The results demonstrate that the PVEH achieves an output voltage of 0.7 V under a low activation acceleration, and it significantly reduces the charging time and enhances the charging efficiency. The energy harvesting conducted through the system enables intelligent monitoring of the sensor.
Article
Engineering, Mechanical
Bogdan Vysotskyi, Jose-Francisco Ambia Campos, Elie Lefeuvre, Alexis Brenes
Summary: This work investigates the frequency response of an electrostatic MEMS energy harvester with an innovative gap-overlap transducer design. The study provides theoretical and experimental evidence of the strongly nonlinear behavior in MEMS dynamics caused by this design solution. Increasing the bias voltage leads to a shift in the frequency response towards lower frequencies and bending towards higher frequencies. The proposed gap-overlap transducer configuration is shown to be a simple and efficient solution for increasing the bandwidth of MEMS energy harvesters.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2024)