Approximate Super- and Sub-harmonic Response of a Multi-DOFs System with Local Cubic Nonlinearities under Resonance

Figure 3

Comparison between the response obtained from the reduced model for resonance mode 𝑞₁ and numerical integration of original model using full modes: —, single mode; ---, full modes, (a) Ω=0.9267, (b) and (c) Ω=0.9617, (d) Ω=0.9767 (rad/s).

(a)

(b)

(c)

(d)