The acoustic radiation from baffled finite plates with free viscoelastic damping layers excited by a random point force is studied in order to evaluate damping treatment performances under the condition of neglecting fluid loading. The vibration response of the plates with damping layer is obtained by the finite element method. Modal damping ratios are estimated from undamped normal mode results by means of the modal strain energy method. Expressions for the surface acoustic intensity and the radiated sound power are derived in the transform formulation and evaluated numerically. An experimental study is carried out to measure the surface intensity distributions and to compare them with the analytical results.
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