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Proceedings Paper

Electromagnetic energy harvesting from a dual-mass pendulum oscillator
Author(s): Hongyan Wang; Jiong Tang
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Paper Abstract

This paper presents the analysis of a type of vibration energy harvester composed of an electromagnetic pendulum oscillator combined to an elastic main structure. In this study, the elastic main structure connected to the base is considered as a single degree-of-freedom (DOF) spring-mass-damper subsystem. The electromagnetic pendulum oscillator is considered as a dual-mass two-frequency subsystem, which is composed of a hollow bar with a tip winded coil and a magnetic mass with a spring located in the hollow bar. As the pendulum swings, the magnetic mass can move along the axial direction of the bar. Thus, the relative motion between the magnet and the coil induces a wire current. A mathematical model of the coupled system is established. The system dynamics a 1:2:1 internal resonance. Parametric analysis is carried out to demonstrate the effect of the excitation acceleration, excitation frequency, load resistance, and frequency tuning parameters on system performance.

Paper Details

Date Published: 15 April 2016
PDF: 8 pages
Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 979924 (15 April 2016); doi: 10.1117/12.2219198
Show Author Affiliations
Hongyan Wang, Qiqihar Univ. (China)
Univ. of Connecticut (United States)
Jiong Tang, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 9799:
Active and Passive Smart Structures and Integrated Systems 2016
Gyuhae Park, Editor(s)

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