PRESSURE RADIATED BY A POINT-EXCITED ELASTIC PLATE.
CAMBRIDGE ACOUSTICAL ASSOCIATES INC MA
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The acoustic pressure radiated by an infinite elastic plate excited by a time-harmonic point force or moment is obtained. The expression is valid for frequencies above and below the coincidence frequency. Below coincidence the pressure pattern is relatively non-directive and for all practical purposes insensitive to structural damping. Above coincidence the pressure pattern becomes directive, and the peak pressures can be significantly reduced by structural damping. Author