Additive resonances of a controlled van der Pol-Duffing oscillator

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dc.contributor.author Zhang, Nong en_US
dc.contributor.author Ji, Jc en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:48:51Z
dc.date.available 2010-05-28T09:48:51Z
dc.date.issued 2008 en_US
dc.identifier 2007003345 en_US
dc.identifier.citation Ji Jin and Zhang Nong 2008, 'Additive resonances of a controlled van der Pol-Duffing oscillator', Academic Press, vol. 315, no. 1-2, pp. 22-33. en_US
dc.identifier.issn 0022-460X en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/9328
dc.description.abstract The trivial equilibrium of a controlled van der Pol?Duffing oscillator with nonlinear feedback control may lose its stability via a non-resonant interaction of two Hopf bifurcations when two critical time delays corresponding to two Hopf bifurcations have the same value. Such an interaction results in a non-resonant bifurcation of co-dimension two. In the vicinity of the non-resonant Hopf bifurcations, the presence of a periodic excitation in the controlled oscillator can induce three types of additive resonances in the forced response, when the frequency of the external excitation and the frequencies of the two Hopf bifurcations satisfy a certain relationship. With the aid of centre manifold theorem and the method of multiple scales, three types of additive resonance responses of the controlled system are investigated by studying the possible solutions and their stability of the four-dimensional ordinary differential equations on the centre manifold. The amplitudes of the free-oscillation terms are found to admit three solutions; two non-trivial solutions and the trivial solution. Of two non-trivial solutions, one is stable and the trivial solution is unstable. A stable non-trivial solution corresponds to a quasi-periodic motion of the original system. It is also found that the frequency-response curves for three cases of additive resonances are an isolated closed curve. It is shown that the forced response of the oscillator may exhibit quasi-periodic motions on a three-dimensional torus consisting of three frequencies; the frequencies of two bifurcating solutions and the frequency of the excitation. Illustrative examples are given to show the quasi-periodic motions. en_US
dc.language en_US
dc.publisher Academic Press en_US
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.jsv.2008.01.052 en_US
dc.rights NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Sound and Vibration. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Sound and Vibration, [Volume 315, Issues 1–2, 5 August 2008, Pages 22–33 ] http://dx.doi.org/10.1016/j.jsv.2008.01.052 en_US
dc.title Additive resonances of a controlled van der Pol-Duffing oscillator en_US
dc.parent Journal Of Sound And Vibration en_US
dc.journal.volume 315 en_US
dc.journal.number 1-2 en_US
dc.publocation London, UK en_US
dc.identifier.startpage 22 en_US
dc.identifier.endpage 33 en_US
dc.cauo.name FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 091300 en_US
dc.personcode 997749 en_US
dc.personcode 950854 en_US
dc.percentage 100 en_US
dc.classification.name Mechanical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords en_US
dc.staffid en_US
dc.staffid 950854 en_US


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