• JACQUES KENGNE

      Articles written in Pramana – Journal of Physics

    • Coexisting bubbles, multiple attractors, and control of multistability in a simple jerk system under the influence of a constant excitation force

      LEANDRE KAMDJEU KENGNE JACQUES KENGNE JUSTIN ROGER MBOUPDA PONE

      More Details Abstract Fulltext PDF

      We investigate the impact of a constant force excitation on the dynamics of a simple jerk system with piecewise quadratic nonlinearity.We demonstrate that in the presence of the forcing term, the model is asymmetric yielding more complex and striking bifurcation patterns such as parallel bifurcation branches, coexisting multiple asymmetric attractors, hysteretic dynamics, crises, and coexisting asymmetric bubbles of bifurcation. Accordingly, the coexistence of two, three, four, or five asymmetric periodic and chaotic attractors are reported by changing the model parameters and initial conditions. The control of multistability is investigated by using the method of linear augmentation. We demonstrate that the multistable system can be converted to a monostable state by smoothly adjusting the coupling parameter. A very good agreement is observed between PSpice simulation results and the theoretical study.

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