飞轮
振动
工程类
能量收集
汽车工程
电气工程
功率(物理)
发电机
发电机(电路理论)
发电
联轴节(管道)
整流器(神经网络)
交流发电机
机架
谐波
定子
电压
机械工程
计算机科学
声学
物理
量子力学
机器学习
人工神经网络
循环神经网络
随机神经网络
作者
Tingsheng Zhang,Lingji Kong,Ze Zhu,Xiaoping Wu,Hai Li,Zutao Zhang,Jinyue Yan
出处
期刊:Applied Energy
[Elsevier]
日期:2024-01-01
卷期号:353: 122047-122047
被引量:2
标识
DOI:10.1016/j.apenergy.2023.122047
摘要
Vibration energy harvesting technology is characterized by wide distribution, is pollution-free and independent of weather and climate, and is suitable for powering low-power sensors to ensure efficient and safe operation in freight railroads. This paper proposed an electromagnetic vibration energy harvester based on a series coupling input mechanism for the self-powered sensors in freight railroads. The design utilizes only one rack for vibration energy input to minimize the moment acting on the vibration source during the working process. Two pinions meshed with the rack convert the up and down vibrations into a two-way rotation. The one-way bearings and another pair of gears convert the opposite rotations of two parallel shafts into one-way rotation of the generator shaft, generating electricity. Supercapacitors and rectifier voltage regulator modules are utilized to store electrical energy efficiently. A peak power of 10.219 W and maximum mechanical efficiency of 64.31% is obtained in the experiment equipped with a flywheel under the 8 mm-4 Hz sinusoidal vibration excitation. The experimental results showed that the flywheel can enable the proposed harvester to achieve better power generation performance when the amplitude and frequency are relatively high.
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