光学精密工程2009，Vol.17Issue(6)：1436-1441,6.
压电式振动发电机的建模及应用
Modeling and application of piezoelectric vibration-based power generator
摘要
Abstract
The piezoelectric vibration-based power generator is apromising MEMS electricity source to power wireless sensing nodes for the fault diagnosis of rotary machines. In this paper,a piezoelectric vibration-based power generator is designed and the mathematical model of the cantilever piezoelectric generator used in rotary mechines is established.Then,the effects of the axial extension force on the stiffness of the beam and the frequency of the generator are analyzed,and the formulas of the frequency, output voltage and output power of the cantilever piezoelectric generator are derived. The output property of the piezoelectric vibration-based generator fixed on a rotary frame is measured.Obtained results show that the maximum output power of the generator is about 35 μW at the rotation frequency about 14.25 Hz. The output power decreases quickly when the rotation frequency deviates from the frequency of the generator.关键词
能量获取/振动发电机/压电发电机/微机电系统Key words
energy harvesting/vibration generator/piezoelectric generator/MEMS分类
信息技术与安全科学引用本文复制引用
贺学锋,温志渝,温中泉..压电式振动发电机的建模及应用[J].光学精密工程,2009,17(6):1436-1441,6.基金项目
Supported by the National Natural Science Foundation of China(Grant No.60706032) （Grant No.60706032）
the National High-Tech Research and Development Program of China (863 Program)(Grant No.2008AA04Z310) （863 Program）
the Cultivation Fund of the Key Scientific and Technical Innovation Project of Ministry of Education of China(Grant No. 708072) （Grant No. 708072）
