A New Simultaneous Identification of the Harmonic Excitations and Nonlinear Damping of Forced Damped Nonlinear Oscillations: A Parametric Approach

Figure 5

Illustration of zero-crossing times: (𝑡^ze_𝐽)_𝑖 from the transient region and (𝑡^ze_acc)_𝑖 from the steady-state region (𝑖=1,2).

(a) (𝑡^ze_𝐽)₁ and (𝑡^ze_acc)₁

(b) (𝑡^ze_𝐽)₂ and (𝑡^ze_acc)₂