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Nonlinear energy harvester with coupled Duffing oscillators / Danilo Karlicic, Milan Cajić, Stepa Paunović, Sondipon Adhikari

Communications in Nonlinear Science and Numerical Simulation, Volume: 91, Start page: 105394

Swansea University Authors: Danilo Karlicic, Sondipon Adhikari

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Abstract

Structural vibrations are very common in aerospace and mechanical engineering systems, where dynamic analysis of modern aerospace structures and industrial machines has become an indispensable step in their design. Suppression of unwanted vibrations and their exploitation for energy harvesting at th...

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Published in: Communications in Nonlinear Science and Numerical Simulation
ISSN: 1007-5704
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54561
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spelling 2020-10-22T15:30:53.7415806 v2 54561 2020-06-29 Nonlinear energy harvester with coupled Duffing oscillators d99ee591771c238aab350833247c8eb9 0000-0002-7547-9293 Danilo Karlicic Danilo Karlicic true false 4ea84d67c4e414f5ccbd7593a40f04d3 Sondipon Adhikari Sondipon Adhikari true false 2020-06-29 EEN Structural vibrations are very common in aerospace and mechanical engineering systems, where dynamic analysis of modern aerospace structures and industrial machines has become an indispensable step in their design. Suppression of unwanted vibrations and their exploitation for energy harvesting at the same time would be the most desirable scenario. The dynamical system presented in this communication is based on a discrete model of energy harvesting device realized in such a manner as to achieve both vibration suppression and harvesting of vibration energy by introducing the nonlinear energy sink concept. The mechanical model is formed as a two-degree of freedom nonlinear oscillator with an oscillating magnet and harmonic base excitation. The corresponding mathematical model is based on the system of nonlinear nonhomogeneous Duffing type differential equations. To explore complex dynamical behaviour of the presented model, periodic solutions and their bifurcations are found by using the incremental harmonic balance (IHB) and continuation methods. For the detection of unstable periodic orbits, the Floquet theory is applied and an interesting harmonic response of the presented nonlinear dynamical model is detected. The main advantage of the presented approach is its ability to obtain approximated periodic responses in terms of Fourier series and estimate the voltage output of an energy harvester for a system with strong nonlinearity. The accuracy of the presented methodology is verified by comparing the results obtained in this work with those obtained by a standard numerical integration method and results from the literature. Numerical examples show the effects of different physical parameters on amplitude-frequency, response amplitude - base amplitude and time response curves, where a qualitative change is explored and studied in detail. Presented theoretical results demonstrate that the proposed system has advanced performance in both system requirements - vibration suppression, and energy harvesting. Journal Article Communications in Nonlinear Science and Numerical Simulation 91 105394 Elsevier BV 1007-5704 Nonlinear vibrations, Energy harvesting, Base amplitude, Force responses, Nonlinear energy sink, Energy localization, Incremental harmonic balance method, Continuation technique 1 12 2020 2020-12-01 10.1016/j.cnsns.2020.105394 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-10-22T15:30:53.7415806 2020-06-29T09:31:55.3656865 College of Engineering Engineering Danilo Karlicic 0000-0002-7547-9293 1 Milan Cajić 2 Stepa Paunović 3 Sondipon Adhikari 4
title Nonlinear energy harvester with coupled Duffing oscillators
spellingShingle Nonlinear energy harvester with coupled Duffing oscillators
Danilo, Karlicic
Sondipon, Adhikari
title_short Nonlinear energy harvester with coupled Duffing oscillators
title_full Nonlinear energy harvester with coupled Duffing oscillators
title_fullStr Nonlinear energy harvester with coupled Duffing oscillators
title_full_unstemmed Nonlinear energy harvester with coupled Duffing oscillators
title_sort Nonlinear energy harvester with coupled Duffing oscillators
author_id_str_mv d99ee591771c238aab350833247c8eb9
4ea84d67c4e414f5ccbd7593a40f04d3
author_id_fullname_str_mv d99ee591771c238aab350833247c8eb9_***_Danilo, Karlicic
4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon, Adhikari
author Danilo, Karlicic
Sondipon, Adhikari
author2 Danilo Karlicic
Milan Cajić
Stepa Paunović
Sondipon Adhikari
format Journal article
container_title Communications in Nonlinear Science and Numerical Simulation
container_volume 91
container_start_page 105394
publishDate 2020
institution Swansea University
issn 1007-5704
doi_str_mv 10.1016/j.cnsns.2020.105394
publisher Elsevier BV
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description Structural vibrations are very common in aerospace and mechanical engineering systems, where dynamic analysis of modern aerospace structures and industrial machines has become an indispensable step in their design. Suppression of unwanted vibrations and their exploitation for energy harvesting at the same time would be the most desirable scenario. The dynamical system presented in this communication is based on a discrete model of energy harvesting device realized in such a manner as to achieve both vibration suppression and harvesting of vibration energy by introducing the nonlinear energy sink concept. The mechanical model is formed as a two-degree of freedom nonlinear oscillator with an oscillating magnet and harmonic base excitation. The corresponding mathematical model is based on the system of nonlinear nonhomogeneous Duffing type differential equations. To explore complex dynamical behaviour of the presented model, periodic solutions and their bifurcations are found by using the incremental harmonic balance (IHB) and continuation methods. For the detection of unstable periodic orbits, the Floquet theory is applied and an interesting harmonic response of the presented nonlinear dynamical model is detected. The main advantage of the presented approach is its ability to obtain approximated periodic responses in terms of Fourier series and estimate the voltage output of an energy harvester for a system with strong nonlinearity. The accuracy of the presented methodology is verified by comparing the results obtained in this work with those obtained by a standard numerical integration method and results from the literature. Numerical examples show the effects of different physical parameters on amplitude-frequency, response amplitude - base amplitude and time response curves, where a qualitative change is explored and studied in detail. Presented theoretical results demonstrate that the proposed system has advanced performance in both system requirements - vibration suppression, and energy harvesting.
published_date 2020-12-01T04:09:19Z
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score 10.844586