Analysis of the Nonlinear Structural-Acoustic Resonant Frequencies of a Rectangular Tube with a Flexible End Using Harmonic Balance and Homotopy Perturbation Methods

Figure 2

(a) The vibration amplitude ratio versus the 1st nonlinear resonant frequency (𝑡=0.5, 0.6, 0.7 mm). (b) The vibration amplitude ratio versus the 2nd nonlinear resonant frequency (𝑡=0.5, 0.6, 0.7 mm).

(a)

(b)