Active-passive hybrid constrained layer for structural damping augmentation
US6598717B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Aug 7, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2224/0283
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.