The performance of damping materials is generally evaluated by experimental methods. However most damping materials used in the transportation industry cannot be excited by itself. Therefore, the measurements are generally made by exciting a damped system, where the damped system extends from a bar to a panel. The paper reviews various damped systems and excitation methodologies and discusses some of the limitations of a bar to study the damping performance for different applications. It discusses a methodology where a damped panel is mounted on a fixture and the fixture is excited with a shaker. The paper discusses data acquisition and data reduction procedures to obtain the damping performance of laminated steel acoustic patch products on a third octave band frequency basis.
Damping Performance Using a Panel Structure
Sae Technical Papers
SAE 2013 Noise and Vibration Conference and Exhibition ; 2013
2013-05-13
Conference paper
English
Structure-Borne Noise Reduction by Active Damping of a Radiating Panel
British Library Conference Proceedings | 1995
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