Abstract

An analytical approach is presented to examine the mechanisms of the transient sound fadiation from a clamped circular plate for impulsive sound wave. After a bfief review on the derivation of the formulae by which the fairly accurate transient waveform radiated is obtained in the time domain, this mechanism is examined in detail in terms of the waveform radiated when the plate is excited by the plane triangular sound pulse of normal incidence. The felationship between the mechanisms of the sound radiation and the mechanical properties of the plate is given and it is noted that one can obtain an arbitrary waveform when the mechanical constants of the plate are controlled.

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