Friction-induced vibration energy harvesting of a high-speed train brake system via a piezoelectric cantilever beam

2021 ◽  
pp. 107126
Author(s):  
Z.Y. Xiang ◽  
J.L. Mo ◽  
H.H. Qian ◽  
W. Chen ◽  
D.B. Luo ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
High Speed ◽  
Brake System ◽  
Vibration Energy ◽  
High Speed Train ◽  
Vibration Energy Harvesting ◽  
Piezoelectric Cantilever ◽  
Friction Induced Vibration

A MEMS Piezoelectric Cantilever Beam Array for Vibration Energy Harvesting

2013 ◽  
Vol 562-565 ◽  
pp. 1052-1057 ◽  
Author(s):  
Xing Qiang Zhao ◽  
Zhi Yu Wen ◽  
Li Cheng Deng ◽  
Guo Xi Luo ◽  
Zheng Guo Shang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Resonance Frequency ◽  
Cantilever Beam ◽  
Maximum Output Power ◽  
Vibration Energy ◽  
Cmos Process ◽  
Maximum Output ◽  
Vibration Energy Harvesting ◽  
Beam Array ◽  
Piezoelectric Cantilever

A micro piezoelectric cantilever beam array is designed for vibration energy harvesting. A single degree of freedom analytical model is developed to predict the properties of the device and is verified by finite element method. The piezoelectric material Aluminum Nitride was chosen for the compatibility with the CMOS process. The devices consisting of 5 piezoelectric cantilever beams and one proof mass were fabricated using micromachining technology. The resonance frequency, voltage and power were tested at excitation acceleration of 5.0 g. The maximum output power of the device is 9.13 μW at the resonance frequency of 1315 Hz when piezoelectric beams are connected in parallel.

Modeling and Analysis of Piezoelectric Bimorph Cantilever for Vibration Energy Harvesting

2012 ◽  
Vol 610-613 ◽  
pp. 2583-2588
Author(s):  
Jun Jie Gong ◽  
Ying Ying Xu ◽  
Zhi Lin Ruan
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
Electromechanical Coupling ◽  
Theory Of Elasticity ◽  
Vibration Energy ◽  
Piezoelectric Bimorph ◽  
Vibration Energy Harvesting ◽  
Output Displacement ◽  
Fea Model ◽  
Piezoelectric Cantilever

The vibration energy can be converted to electrical energy directly and efficiently using piezoelectric cantilever beam based on piezoelectric effect. Since its structure is simple and its working process is unpoisonous to the environment, the piezoelectric cantilever beam can be used in various fields comprehensively. The present paper perform an analysis on the vibration energy harvesting problem of piezoelectric bimorph cantilever beam. The piezoelectric cantilever model has been formulated using the theory of elasticity mechanics and piezoelectric theory. A prototype of piezoelectric power generator is set up to do vibration test, and the electromechanical coupling FEA model under vibration load is built to simulate its output displacement, stress and voltage. The present numerical results of piezoelectric bimorph cantilever coincide well with our related experimental results, which shows the validity of the present FEA model and the relate results.

scholarly journals Experiment Investigation of Bistable Vibration Energy Harvesting with Random Wave Environment

2021 ◽  
Vol 11 (9) ◽  
pp. 3868
Author(s):  
Qiong Wu ◽  
Hairui Zhang ◽  
Jie Lian ◽  
Wei Zhao ◽  
Shijie Zhou ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Harvesting ◽  
Cantilever Beam ◽  
Large Scale ◽  
Low Frequency ◽  
Vibration Energy ◽  
Random Wave ◽  
Periodic Signal ◽  
Vibration Energy Harvesting ◽  
Motion Activity

The energy harvested from the renewable energy has been attracting a great potential as a source of electricity for many years; however, several challenges still exist limiting output performance, such as the package and low frequency of the wave. Here, this paper proposed a bistable vibration system for harvesting low-frequency renewable energy, the bistable vibration model consisting of an inverted cantilever beam with a mass block at the tip in a random wave environment and also develop a vibration energy harvesting system with a piezoelectric element attached to the surface of a cantilever beam. The experiment was carried out by simulating the random wave environment using the experimental equipment. The experiment result showed a mass block’s response vibration was indeed changed from a single stable vibration to a bistable oscillation when a random wave signal and a periodic signal were co-excited. It was shown that stochastic resonance phenomena can be activated reliably using the proposed bistable motion system, and, correspondingly, large-scale bistable responses can be generated to realize effective amplitude enlargement after input signals are received. Furthermore, as an important design factor, the influence of periodic excitation signals on the large-scale bistable motion activity was carefully discussed, and a solid foundation was laid for further practical energy harvesting applications.

scholarly journals A Study on the Energy-Harvesting Device with a Magnetic Spring for Improved Durability in High-Speed Trains

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 830
Author(s):  
Jaehoon Kim
Keyword(s):  
Energy Harvesting ◽  
High Speed ◽  
Permanent Magnets ◽  
Critical Issue ◽  
Sensor Nodes ◽  
High Speed Train ◽  
Vibration Energy Harvesting ◽  
Magnetic Spring ◽  
High Speed Trains ◽  
Energy Harvesting Devices

Durability is a critical issue concerning energy-harvesting devices. Despite the energy-harvesting device’s excellent performance, moving components, such as the metal spring, can be damaged during operation. To solve the durability problem of the metal spring in a vibration-energy-harvesting (VEH) device, this study applied a non-contact magnetic spring to a VEH device using the repulsive force of permanent magnets. A laboratory experiment was conducted to determine the potential energy-harvesting power using the magnetic spring VEH device. In addition, the characteristics of the generated power were studied using the magnetic spring VEH device in a high-speed train traveling at 300 km/h. Through the high-speed train experiment, the power generated by both the metal spring VEH device and magnetic spring VEH device was measured, and the performance characteristics required for a power source for wireless sensor nodes in high-speed trains are discussed.

A study on the optimal design and the performance evaluation of electromagnetic energy harvesting device for the rolling stock application

2020 ◽  
Vol 31 (20) ◽  
pp. 2362-2377 ◽  
Author(s):  
Jaehoon Kim
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
High Speed ◽  
Electromagnetic Energy ◽  
Rolling Stock ◽  
Design Parameters ◽  
High Speed Train ◽  
Resonant Energy ◽  
Electromagnetic Energy Harvesting ◽  
Railroad System

An electromagnetic energy harvesting device was studied based on the design parameters of an energy harvesting device for the power source of wireless sensors node on the rolling stock. The characteristics of the generated power by the energy harvesting device were tested using the laboratory equipment and a rolling stock (a high-speed train). First, a cantilever beam energy harvesting device, which allows for easy adjustment of the length according to the frequency and the power according to the cantilever beam materials, was researched. In addition, the new design for a practical resonant energy harvesting device for the railroad system was performed. To realize the performance of the practical resonant energy harvesting device, the generated power characteristics of the energy harvesting device were tested according to the moving displacement, the number of coil turns, and the initial coil displacement between the coil and magnet. The evaluation of the performance of the manufactured resonant energy harvesting device for the railroad system, which the parameters were determined based on the test results, was conducted under real driving conditions in the high-speed train, which was traveling at 300 km/h. Finally, this study analyzed whether the power generated could be applied to the wireless sensor nodes for the railroad system.

Sign in / Sign up

Export Citation Format

Share Document