Abstract
Experimental and analytical results are presented on chaotic oscillations of a suspended curved panel with square boundary. The configuration of the curved panel is deformed by initial deflection and static deformation due to the gravity force and to in-plane elastic constrait. In the analysis, the initial configuration of the panel is assumed as a suspended curved form with double arc along each edge, because mainly the gravity force affects the static deformation of the curved panel. The chaotic responses of the curved panel are examined with the Poincare projection, the Fourier spectrum and the maximum Lyapunov exponent. The chaotic oscillations are generated by the sub-harmonic resonance of 1/2 order with the lowest mode. Experimental and analytical results of the chaotic responses agree well with each other.
