VIBRATIONS OF CIRCULAR CYLINDRICAL SHELLS UNDER SEISMIC EXCITATION

francesco pellicano

In the present paper experimental results regarding the dynamics of circular cylindrical shells are presented. A circular cylindrical shell having vertical axis, clamped at the base and connected to a disk on the top is excited seismically by means of a resonant forcing. The first axisymmetric mode is excited around the resonance at relatively low frequency and low amplitude excitation. A violent resonant phenomenon is observed and analyzed close to the previously mentioned resonance as well as an interesting saturation phenomenon.

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