Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative
In this paper, the necessary condition for the chaotic motion of a Duffing oscillator with the fractional-order derivative under harmonic excitation is investigated. The necessary condition for the chaos in the sense of Smale horseshoes is established based on the Melnikov method, and then the chaot...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/1230194 |
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| author | Wuce Xing Enli Chen Yujian Chang Meiqi Wang |
| author_facet | Wuce Xing Enli Chen Yujian Chang Meiqi Wang |
| author_sort | Wuce Xing |
| collection | DOAJ |
| description | In this paper, the necessary condition for the chaotic motion of a Duffing oscillator with the fractional-order derivative under harmonic excitation is investigated. The necessary condition for the chaos in the sense of Smale horseshoes is established based on the Melnikov method, and then the chaotic threshold curve is obtained. The largest Lyapunov exponents are provided, and some other typical numerical simulation results, including the time histories, frequency spectrograms, phase portraits, and Poincare maps, are presented and compared. From the analysis of the numerical simulation results, it could be found that, near the chaotic threshold curve, the system generates chaos via the period-doubling bifurcation, from single periodic motion to period-2 motion and period-4 motion to chaotic motion. The effects of fractional-order parameters, the stiffness coefficient, and the damping coefficient on the threshold value of the chaotic motion are analytically discussed. The results show that the coefficient of the fractional-order derivative has great effect on the threshold value of the chaotic motion, while the order of the fractional-order derivative has less. The analysis results reveal some new phenomena, and it could be useful for designing or controlling dynamic systems with the fractional-order derivative. |
| format | Article |
| id | doaj-art-9189ca386d2d4532be3663771f0c0a24 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-9189ca386d2d4532be3663771f0c0a242025-02-03T01:32:40ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/12301941230194Threshold for Chaos of a Duffing Oscillator with Fractional-Order DerivativeWuce Xing0Enli Chen1Yujian Chang2Meiqi Wang3School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaSchool of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaSchool of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaSchool of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaIn this paper, the necessary condition for the chaotic motion of a Duffing oscillator with the fractional-order derivative under harmonic excitation is investigated. The necessary condition for the chaos in the sense of Smale horseshoes is established based on the Melnikov method, and then the chaotic threshold curve is obtained. The largest Lyapunov exponents are provided, and some other typical numerical simulation results, including the time histories, frequency spectrograms, phase portraits, and Poincare maps, are presented and compared. From the analysis of the numerical simulation results, it could be found that, near the chaotic threshold curve, the system generates chaos via the period-doubling bifurcation, from single periodic motion to period-2 motion and period-4 motion to chaotic motion. The effects of fractional-order parameters, the stiffness coefficient, and the damping coefficient on the threshold value of the chaotic motion are analytically discussed. The results show that the coefficient of the fractional-order derivative has great effect on the threshold value of the chaotic motion, while the order of the fractional-order derivative has less. The analysis results reveal some new phenomena, and it could be useful for designing or controlling dynamic systems with the fractional-order derivative.http://dx.doi.org/10.1155/2019/1230194 |
| spellingShingle | Wuce Xing Enli Chen Yujian Chang Meiqi Wang Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative Shock and Vibration |
| title | Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative |
| title_full | Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative |
| title_fullStr | Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative |
| title_full_unstemmed | Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative |
| title_short | Threshold for Chaos of a Duffing Oscillator with Fractional-Order Derivative |
| title_sort | threshold for chaos of a duffing oscillator with fractional order derivative |
| url | http://dx.doi.org/10.1155/2019/1230194 |
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