Friction-induced vibration energy harvesting via a piezoelectric cantilever vibration energy collector

被引：9

作者：

Xiang, Z. Y. ^{[1
]}

Zhang, J. K. ^{[1
]}

Li, S. J. ^{[1
]}

Xie, S. L. ^{[1
]}

Liu, F. P. ^{[2
]}

Zhu, R. D. ^{[2
]}

He, D. K. ^{[2
]}

机构：

[1] Guangxi Univ, Sch Mech Engn, Nanning 530004, Peoples R China

[2] Liuzhou Vocat & Tech Coll, Fac Mech & Elect Engn, Liuzhou 545000, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 189卷

基金：

中国国家自然科学基金;

关键词：

Friction-induced vibration; Piezoelectric cantilever beam; Energy harvesting; Finite element simulation; Numerical analysis; FREQUENCY; SQUEAL;

D O I：

10.1016/j.triboint.2023.108933

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A piezoelectric cantilever vibration energy collector (PCVEC) was developed to harvest friction-induced vibration (FIV) energy. Tests were conducted using a CETR machine. A finite element model (FEM) and a 5-degree-of freedom (5-DOF) numerical model were established to verify the harvester's effectiveness. The results show that PCVEC effectively converts FIV energy into electrical energy. PCVEC does not generate any voltage when the block moves in the direction opposite to the friction direction. PCVEC exhibits better deformation capability when the mass and stiffness of cantilever beam are low, enabling the piezoelectric ceramic material to convert FIV energy into electrical energy more efficiently. As the mass and stiffness increase, the deformation capability of the PCVEC weakens, resulting in a decrease in the output voltage.

引用

页数：17

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