Damping patch by thermo-viscous fluid film (PAFF-TV)
« A high tech acoustic damping solution via a simple patch »
Currently damping patch is widely used in aviation to absorb vibrations without damaging the structure itself. Patches used today use a sandwich structure whose core is a highly dissipative polymer, the disadvantage of this technique is that it only works well in a frequency band and temperature range.
The laboratory has developed a new type of patch encapsulating a thermo-viscous fluid film to reduce noise by absorbing all frequencies of sound, in a very wide temperature range, which differentiates the existing solutions.
- Aeronautics and aerospace
- Household appliance
- Effective at any frequency
- Effective in a wide temperature range
- Lightweight device