Internally damped thin-walled, composite longitudinal member hav

Details Internally damped thin-walled, composite longitudinal member hav Internally damped thin-walled, composite longitudinal member hav

1990-01-09

1992-04-28

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

52144, 523091, 52403, 428 369, E04B 184

Patent

active

051088029

ABSTRACT:
An internally damped structure having a thin, segmented layer of high modulus composite material acting as a constraining layer and bonded on both sides to layers of viscoelastic damping layers acting as shear layers. The arrangement forms a triple layer sandwich which is embedded in the wall of the structure. A compliant filler is positioned between adjacent segments of the composite constraining layer.
In an alternate embodiment two such sandwich arrangements are embedded in the wall of the structure.

REFERENCES:
patent: 4954375 (1990-09-01), Sattinger et al.
"Analysis, Optimization, Fabrication and Test of Composite Shells with Embedded Viscoelastic Layers", Bronowicki and Diaz. Proceedings of Damping Nov. 1989.

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