Bistable wind-induced vibration energy harvester for self-powered wireless sensors in smart bridge monitoring systems

2019 ◽  
Author(s):  
Saman Farhangdoust ◽  
Armin Mehrabi ◽  
Davood Younesian
Keyword(s):  
Wireless Sensors ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Monitoring Systems ◽  
Vibration Energy Harvester ◽  
Bridge Monitoring ◽  
Self Powered ◽  
Wind Induced Vibration

Design under uncertainty for reliable power generation of piezoelectric energy harvester

2017 ◽  
Vol 28 (17) ◽  
pp. 2437-2449 ◽  
Author(s):  
Sumin Seong ◽  
Chao Hu ◽  
Soobum Lee
Keyword(s):  
Power Generation ◽  
Optimum Design ◽  
Energy Harvester ◽  
Research Effort ◽  
Optimization Method ◽  
Operating Conditions ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Piezoelectric Energy ◽  
Self Powered

In recent years, vibration energy harvesters have been widely studied to build self-powered wireless sensor networks for monitoring modern engineered systems. Although there has been significant research effort on different energy harvester configurations, the power output of a vibration energy harvester is known to be sensitive to various sources of uncertainties such as material properties, geometric tolerances, and operating conditions. This article proposes a reliability-based design optimization method to find an optimum design of energy harvester that satisfies the target reliability on power generation. This optimum design of vibration energy harvester demonstrates reliable power generation capability in the presence of the various sources of uncertainties.

scholarly journals Design Procedure and Experimental Verification of a Broadband Quad-Stable 2-DOF Vibration Energy Harvester

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2893 ◽  
Author(s):  
Zayed ◽  
Assal ◽  
Nakano ◽  
Kaizuka ◽  
El-Bab
Keyword(s):  
Degrees Of Freedom ◽  
Permanent Magnets ◽  
Energy Harvester ◽  
Design Procedure ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Limited Bandwidth ◽  
Energy Harvesters ◽  
Self Powered ◽  
Selection Of

Vibration-based energy harvesters brought the idea of self-powered sensors to reality in the past few years. Many strategies to improve the performance of linear vibration energy harvesters that collect energy over a limited bandwidth have been proposed. In this paper, a bi-stable two degrees of freedom (2-DOF) cut-out vibration energy harvester employing a pair of permanent magnets is designed through a proposed design methodology. Based on this methodology, the nonlinear harvesters can be optimally designed such that the bandwidth can be widened for a targeted output voltage. The proper selection of the harvester parameters as well as the gap distances between the tip and the fixed magnets are the bases of this methodology. The mathematical modeling of the proposed harvester and the formula for the potential energy between the tip and the fixed magnets are presented. Additionally, to enhance the performance of the bi-stable energy harvester (BEH), a quad-stable energy harvester (QEH) was configured by adding more fixed magnets. Experiments were performed to validate the numerical simulations and the results showed that, the simulation and experimental results are consistent. The results indicate that, the QEH covers a wider bandwidth than the BEH and based on a figure of merit the QEH shows the best performance among many harvesters presented in the literature.

Design and analysis of a 2D broadband vibration energy harvester for wireless sensors

2014 ◽  
Vol 205 ◽  
pp. 47-52 ◽  
Author(s):  
Jin Yang ◽  
Xihai Yue ◽  
Yumei Wen ◽  
Ping Li ◽  
Qiangmo Yu ◽  
...  
Keyword(s):  
Wireless Sensors ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester
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