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9 May 2024 Power and bandwidth analysis of vibration-based piezoelectric energy harvesting systems using electrically induced damping
Yabin Liao, Feng Qian, Yi-Chung Shu
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Proceedings Volume 12946, Active and Passive Smart Structures and Integrated Systems XVIII; 129460Z (2024) https://doi.org/10.1117/12.3009793
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States
Abstract
This paper explores using electrically induced damping (electrical damping) as a dual indicator to power output and harvesting bandwidth in vibration-based piezoelectric energy harvesting. It evaluates electrical damping's impact on bandwidth and power using an impedance-based unified model. Analytical formulas are systematically developed to quantify the electrical damping and change in system stiffness for harvesters interfaced with various circuit topologies. The relationship between the electrical damping and power is elucidated through both analytical analysis and numerical examples. This electrical damping approach allows for analyzing power and bandwidth simultaneously.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Yabin Liao, Feng Qian, and Yi-Chung Shu "Power and bandwidth analysis of vibration-based piezoelectric energy harvesting systems using electrically induced damping", Proc. SPIE 12946, Active and Passive Smart Structures and Integrated Systems XVIII, 129460Z (9 May 2024); https://doi.org/10.1117/12.3009793
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KEYWORDS
Energy harvesting
Vibration
Piezoelectric effects
Structural dynamics
Systems modeling
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