Publications [#282373] of Lawrence N. Virgin
- Murphy, KD; Virgin, LN; Rizzi, SA, Experimental study of the forced response of pre- and post-critical plates,
American Society of Mechanical Engineers, Design Engineering Division (Publication) De, vol. 84 no. 3 Pt A/1
(last updated on 2019/09/17)
Experimental results are presented which characterize the dynamic response of homogeneous, fully clamped, rectangular plates to narrow band acoustic excitation and uniform thermal loads. Using time series, pseudo-phase projections, power spectra and auto-correlation functions, small amplitude vibrations are considered about both the pre- and postcritical states. These techniques are then employed to investigate the snap-through response. The results for snap-through suggest that the motion is temporally complex and a Lyapunov exponent calculation confirms that the motion is chaotic. Finally, a snap-through boundary is mapped in the (ω, SPL) parameter space separating the regions of snap-through and no snap-through.