A Note on the Solutions of the Van der Pol and Duffing Equations Using a Linearisation Method. (27th September 2012)

• Record Type: Journal Article
• Authors: Motsa, Sandile S.; Sibanda, Precious
• Other Names: Gajic Zoran Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2012(2012)
• Publication Date: 2012-09-27
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2012/693453
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : We present a novel application of the successive linearisation method to the classical Van der Pol and Duffing oscillator equations. By recasting the governing equations as nonlinear eigenvalue problems we obtain accurate values of the frequency and amplitude. We demonstrate that the proposed method can be used to obtain the limit cycle and bifurcation diagrams of the governing equations. Comparison with exact and other results in the literature shows that the method is accurate and effective in finding solutions of nonlinear equations with oscillatory solutions, nonlinear eigenvalue problems, and other nonlinear problems with bifurcations.