论文信息 - Experimental snap-through boundaries for acoustically excited, thermally buckled plates

Experimental snap-through boundaries for acoustically excited, thermally buckled plates

AbstractThis paper presents some recent experimental results on the dynamic snap-through behavior of a clamped, rectangular plate subject to thermal loading and intense acoustic excitation. The likelihood of snap-through oscillations is characterized in terms of boundaries separating regions of snap-through and no snap-through in the parameter space. Two scenarios are considered. First, using tonal inputs, the regions of snap-through are mapped in the sound pressure level—input frequency domain ((SPL, ω) plane). Second, random acoustic inputs are used, and the effect of varying the overall sound pressure level and frequency bandwidth are investigated ((SPL, $$\omega _{center} + \bar \omega $$ ) plane). Several nonlinear characteristics are evident and discussed.

Lawrence N. Virgin | Stephen A. Rizzi | K. D. Murphy

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