&lt;title&gt;Determination of phase and magnitude maps for vibration flow measurements in structures using interferometric cineholography&lt;/title&gt;

Pascal, Jean‐Claude; Carniel, Xavier; Chalvidan, V.; Smigielski, P.

doi:10.1117/12.185353

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Power Flow In Beams1

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1996

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“…Locations of energy sources and sinks can be identified from plots of the active power flow. Imaginary or reactive power flow does not contribute to the net energy flow in the structure as discussed by Pascal et al (1994). Only active power flow results will be discussed here, even though the procedure presented can easily develop a spatial representation of the reactive power flow.…”

Section: Power Flow In Beamsmentioning

confidence: 99%

Experimental and Analytical Power Flow in Beams Using a Scanning Laser Doppler Vibrometer

Blotter

West

1996

Shock and Vibration

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An experimental spatial power-flow (ESPF) method is presented. This method provides a spatially continuous model of the power-flow vector field derived from experimental measurements. The power-flow vector field clearly indicates locations of energy sources and sinks as well as paths of energy transmission. In the ESPF approach, a scanning laser Doppler vibrometer acquires spatially dense measurements of the vibrating test structure. These measurements are used in solving for a spatially continuous 3-dimensional complex-valued model of the steady-state dynamic response. From this experimentally derived dynamics model, a spatial representation of the power flow is computed.

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Section: Power Flow In Beamsmentioning

confidence: 99%