MATEC Web Conf.
Volume 83, 2016CSNDD 2016 - International Conference on Structural Nonlinear Dynamics and Diagnosis
|Number of page(s)||3|
|Published online||16 November 2016|
Energy harvesting of nonlinear damping system under time delayed feedback gain
1 Faculty of Science and Technology-Errachidia, University Moulay Ismaïl, Morocco
2 Laboratory of Renewable Energy and Structural Dynamics, University Hassan II - Casablanca, Morocco
3 Laboratory of Engineering Science, ESTEM Research Center, Casablanca, Morocco
a e-mail: firstname.lastname@example.org
This paper presents the application of delayed feedback velocity for optimizing the harvested power in cubic nonlinear damper system. We consider a harvester consisting of a nonlinear single degree of freedom system (spring-masse-damper) subjected to a base excitation near the primary resonance. Analytical investigation using the multiple scales method is performed to obtain approximation of the amplitude response. This amplitude can be used to extract the average power. Results show that for appropriate values of the feedback gain, energy harvesting is more efficient at resonance compared to the cubic nonlinear damper system without time delay.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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