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Study of third-order non-linear systems- Variation of parameters approach

Srirangarajan, HR and Dasarathy, BV (1975) Study of third-order non-linear systems- Variation of parameters approach. In: Journal of Sound and Vibration J Sound Vib, 40 (2). pp. 173-178.

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In this paper, the transient response of a third-order non-linear system is obtained by first reducing the given third-order equation to three first-order equations by applying the method of variation of parameters. On the assumption that the variations of amplitude and phase are small, the functions are expanded in ultraspherical polynomials. The expansion is restricted to the constant term. The resulting equations are solved to obtain the response of the given third-order system. A numerical example is considered to illustrate the method. The results show that the agreement between the approximate and digital solution is good thus vindicating the approximation.

Item Type: Journal Article
Publication: Journal of Sound and Vibration J Sound Vib
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Division of Electrical Sciences > Computer Science & Automation
Date Deposited: 22 Jan 2010 06:32
Last Modified: 19 Sep 2010 05:49
URI: http://eprints.iisc.ac.in/id/eprint/24122

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