Dual-constrained viscoelastic damping mechanism for structural vibration control
US5473122A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1993 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Jan 4, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F3/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A passive damping mechanism for a panel member in which a bonding layer is disposed on each side of the panel, a damping layer is disposed on each of the two bonding layers, and a constraining layer is disposed on each of the two damping layers. Each of the above-mentioned layers is coextensive with the respective panel surfaces to which it is attached. The bonding layers are preferably made of an aramid fiber material. The damping layers are preferably made of a viscoelastic material. The constraining layers are preferably made of an aluminum-graphite metal matrix composite material. In addition, the coefficient of thermal expansion of each bonding layer should match well with that of each constraining layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.