Natural Frequency Analysis of Two Nonlinear Panels Coupled with a Cavity Using the Approximate Elliptic Integral Solution and the Method of Harmonic Residual Minimization

<div>(a) Free vibration time histories obtained from the two solution methods (in-phase mode, initial amplitude ratio = 1.4, gap width/panel width = 0.5). (b) Free vibration time histories obtained from the two solution methods (out of phase mode, initial amplitude ratio = 0.4, gap width/panel width = 0.5).</div>

Discrete Dynamics in Nature and Society

fig2

Figure 2

Figure 2: Natural Frequency Analysis of Two Nonlinear Panels Coupled with a Cavity Using the Approximate Elliptic Integral Solution and the Method of Harmonic Residual Minimization 

Figure 2 | Natural Frequency Analysis of Two Nonlinear Panels Coupled with a Cavity Using the Approximate Elliptic Integral Solution and the Method of Harmonic Residual Minimization 