Feasibility study of multi-directional vibration energy harvesting with a frame harvester

Hao Wu; Lihua Tang; Yaowen Yang; Chee Kiong Soh

doi:10.1117/12.2044973

10 March 2014 Feasibility study of multi-directional vibration energy harvesting with a frame harvester

Hao Wu, Lihua Tang, Yaowen Yang, Chee Kiong Soh

Proceedings Volume 9057, Active and Passive Smart Structures and Integrated Systems 2014; 905703 (2014) https://doi.org/10.1117/12.2044973
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Vibration energy harvesting using piezoelectric material is a promising solution for powering small electric devices, which has attracted great research interest in recent years. Numerous efforts have been done by researchers to improve the efficiency of vibration energy harvesters and to broaden their bandwidths. In most reported literature, harvesters are designed to harvest energy from vibration source with a specific excitation direction. However, a practical environmental vibration source may include multiple components from different directions. Thus, it is an important concern to design a vibration energy harvester to be adaptive to multiple excitation directions. In this article, a novel piezoelectric energy harvester with frame configuration is proposed to address this issue. It can work either in its vertical vibration mode or horizontal vibration mode. Therefore, the harvester can capture vibration energy from arbitrary directions in a twodimensional plane. Experimental studies are carried out to prove the feasibility for multiple-direction energy harvesting using such harvester. The development of this two-dimensional energy harvester indicates its promising potential in practical vibration scenarios.

Citation Download Citation

Hao Wu, Lihua Tang, Yaowen Yang, and Chee Kiong Soh "Feasibility study of multi-directional vibration energy harvesting with a frame harvester", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 905703 (10 March 2014); https://doi.org/10.1117/12.2044973

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