Design of vibration energy harvesters with customized nonlinear forces

Donglin Zou; Gaoyu Liu; Zhushi Rao; Ting Tan; Wenming Zhang; Wei-Hsin Liao

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Design of vibration energy harvesters with customized nonlinear forces

机译：具有定制非线性力的振动能量收割机设计

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摘要

Nonlinear forces have been widely introduced into vibration energy harvesting to improve its performance. Generally, sources of nonlinearity include magnet forces, spring forces, geometric and material nonlinearity, etc. However, these nonlinear forces cannot be manipulated arbitrarily. It is very promising if the nonlinear forces can be customized according to requirements, in which the performance of the energy harvester can be further optimized. Therefore, the purpose of this study is to develop a kind of vibration energy harvester (VEH) that can customize the nonlinear forces. The nonlinear force customization device consists of a pre-compressed spring, a miniature bearing, and a raceway, which are designed according to the nonlinear forces. As an example, the device is installed at the end of a piezoelectric cantilever beam, and mono-stable, bi-stable and tri-stable energy harvesters are customized, respectively. Simulation and experiments prove its effectiveness. The nonlinear force customization device enables designers to obtain the desirable nonlinear forces for the vibration energy harvesters.

机译：非线性力被广泛引入振动能量收集以改善其性能。通常，非线性的来源包括磁体力，弹簧力，几何和材料非线性等。然而，这些非线性力不能任意操纵。如果可以根据要求定制非线性力，则非常有希望，其中可以进一步优化能量收割机的性能。因此，本研究的目的是开发一种可以定制非线性力的振动能量收割机（阀门）。非线性力定制装置由预压制的弹簧，微型轴承和滚道组成，其根据非线性力设计。作为示例，该装置安装在压电悬臂梁的末端，单稳态，双稳态和三稳态能量收割机分别定制。模拟和实验证明了其有效性。非线性力定制装置使设计人员能够获得所需的振动能量收割机的非线性力。

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来源
《Mechanical systems and signal processing》 |2021年第5期|107526.1-107526.13|共13页
作者
Donglin Zou; Gaoyu Liu; Zhushi Rao; Ting Tan; Wenming Zhang; Wei-Hsin Liao;
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作者单位

Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Shatin Hong Kong 999077 China State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai jiao Tong University Shanghai 200240 China;

Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Shatin Hong Kong 999077 China;

State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai jiao Tong University Shanghai 200240 China;

State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai jiao Tong University Shanghai 200240 China;

State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai jiao Tong University Shanghai 200240 China;

Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Shatin Hong Kong 999077 China;

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正文语种 eng
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Vibration energy harvester; Customized nonlinear forces; Mono-stable; Bi-stable; Tri-stable;

机译：振动能量收割机;定制的非线性力;单稳态;双稳态;三稳态;

Design of vibration energy harvesters with customized nonlinear forces

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