Abstract and Applied Analysis / 2012 / Article / Fig 4

Research Article

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

Figure 4

(a) The 1st nonlinear resonant frequency versus ( , 0.8, 1.2 mm). (b) The 2nd nonlinear resonant frequency versus ( , 0.8, 1.2 mm).

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