Power Flow in a Plate with an Attached Point Damper
نویسندگان
چکیده
due to flexural vibration flows from mechanical sources which can be transmitted /hrough a structure, such as an elastic plate, to another attached structure that is connected to the first at a single point. The connected structure can dissipate this energy through coupling to an acoustic medium or transmit it to yet a third structure. The objective of this work is to investigate the path of power flow from a mechanical source to any point in a plate by plotting the vector structural intensity (S1) map. A damped, simply supported plate is taken as a model for the support structure and a point damper (PD), whose resistive point impedance acts as an energy absorbing device, and models the power flow transmission to a connected structure. The damping coefficient of the PD represents a measure of the power flow through the connection point. The analysis and measurement of Structural Intensity (SI) has been studied by few authors, which was :he subject of two congresses [1]. The measurement of S1 has been reported in Ref12-7].
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تاریخ انتشار 2012