Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1996-08-29
1998-11-17
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310345, H01L 4108
Patent
active
058380922
ABSTRACT:
An active constrained layer system includes a passive viscoelastic damping material positioned on top of a substrate. An active piezoelectric layer is positioned on top of the passive viscoelastic damping material. An edge element physically connects the active piezoelectric layer to the substrate to transmit active forces and moments from the piezoelectric layer to the substrate. The novel edge element yields higher active control from the piezoelectric layer, while preserving the damping capacity of the passive viscoelastic layer. The edge element may be implemented in a variety of ways, including an edge element clamp structure and an edge element post structure.
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Baz, A. and Ro, J., "The Concept and Performance of Active Constrained Layer Damping Treatments", Sound and Vibration, Mar. 1994, pp. 18-21.
Baz, A., "Partial Treatment of Fexible Beams with Active Constrained Layer Damping", Recent Developments in Stability, Vibration, and Control of Structural Systems, Proc. of ASME, AMD-167, pp. 61-80 (1993).
Liao Wei-Hsin
Wang Kon-Well
Budd Mark O.
Galliani William S.
The Penn State Research Foundation
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