... increase such that the accuracy of the numerical calculations may be negatively affected. Optimal time step for highest accuracy is always a challenge in numerical simulations. This is especially true when nonlinear dynamic systems, which are very sensitive to initial conditions and system parameters...

...) and Wiener–Haar expansions to be efficient in the modeling and prediction of limit cycle oscillations independently of the location of the instability zone with respect to the Hopf bifurcation point. uncertain nonlinear systems nonlinear dynamic systems mode coupling instability random uncertainty...