Periodic Solutions of a Modified Duffing Equation Subjected to a Bi-Harmonic Parametric and External Excitations
A. M. Elnaggar, A. F. El-Bassiouny, K. M. Khalil & A. M. Omran · Journal of Advances in Mathematics and Computer Science · 2016
In this paper, we investigated the periodic solutions of type superharmonic and subsuperharmonic of modified Duffing equation subjected to a bi-harmonic parametric and external excitations. The method of multiple scales is used to construct a first order uniform expansion of appr...
Open access
Research Article
10.9734/BJMCS/2016/25684