Active-passive hybrid constrained layer for structural damping augmentation
AssigneeThe Penn State Research Foundation
InventorsKon-Well Wang, Yanning Liu
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Abstract
The invention is a method and apparatus for surface damping augmentation. The apparatus of the present invention includes a viscoelastic material, a hybrid constraining layer mechanically connected to the viscoelastic material and having an active material and a passive material, and the active material mechanically connected to the passive material. The method provides for selecting an active constraining material, selecting a passive constraining material, forming a hybrid constraining layer from the active constraining material and the passive constraining material, and mechanically connecting the hybrid constraining layer to a viscoelastic material.
Claims17
A structure for surface damping augmentation comprising:
- a viscoelastic material;
- a hybrid constraining layer mechanically connected to the viscoelastic material and having an active material and a passive material;
- and
- the active material mechanically connected to the passive material.
A method of designing a constrained layer for structural damping augmentation comprising:
- selecting an active constraining material;
- selecting a passive constraining material;
- forming a hybrid constraining layer from the active constraining material and the passive constraining material;
- and
- mechanically connecting the hybrid constraining layer to a viscoelastic material.
Dependencies are inferred from the claim text.