Abstract
In this paper, the Melnikov function method has been used to analyse the distance between stable manifold and unstable manifold of the soft spring. Duffing equation after its heteroclinic orbits rupture as the result of a small perturbation. The conditions that limit circles are bifurcated are given, and then their stability and location is determined.
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Communicated by Xu Zhengfan
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Fude, C. Limit circles bifurcated from a soft spring duffing equation under perturbation. Appl Math Mech 19, 129–133 (1998). https://doi.org/10.1007/BF02457680
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DOI: https://doi.org/10.1007/BF02457680