@inproceedings{45423238241446669d73b3f781f1718e,
title = "Energy Harvesting Efficiency of a Quasi-zero Stiffness System",
abstract = "In this paper, a study on modelling energy harvesting efficiency of a quasi-zero stiffness system is presented. Mechanical characteristics of the system are identified, and the effect of its stiffness and geometry on the function describing energy potential barrier is determined. It has been shown numerically that an increase in equivalent stiffness of the quasi-zero stiffness system limits the potential barrier width. On the other hand, increased the spacing between compensating springs results increased this barrier. Simulation results of the quasi-zero stiffness system are compared with those obtained for a triple-well system formed with help of permanent magnets. Based on mathematical models, multicolor diagrams depicting the largest Lyapunov exponent are plotted. The effect of selected values of external excitation frequency and amplitude on the efficiency of energy harvesting is determined. The rms value of time sequence is taken as a measure of energy harvesting efficiency. Obtained numerical results are plotted as phase portraits.",
keywords = "Energy harvesting, Lyapunov exponent, Nonlinear oscillation",
author = "Jerzy Margielewicz and Damian Gska and Grzegorz Litak and Piotr Wolszczak and Shengxi Zhou",
note = "Publisher Copyright: {\textcopyright} 2022 American Institute of Physics Inc.. All rights reserved.; International Conference on Numerical Analysis and Applied Mathematics 2020, ICNAAM 2020 ; Conference date: 17-09-2020 Through 23-09-2020",
year = "2022",
month = apr,
day = "6",
doi = "10.1063/5.0082079",
language = "英语",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "T.E. Simos and T.E. Simos and T.E. Simos and T.E. Simos and Ch. Tsitouras",
booktitle = "International Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2020",
}