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Divergence of plate at M = 0.91

This movie shows results of the direct time-domain numerical simulation of the flat plate divergence. Instability in the form of divergence is observed only at M < 1. The plate is stable for M ≤ 0.73. At M > 0.73 the perturbed plate makes several oscillations and stabilizes at a deformed state so that the deflection of the reference point tends to a constant value as t → ∞. The shape of the diverged plate is very close to the first natural mode shape.

Read more in Evolution of nonlinear panel flutter oscillations.

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