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.

Applications

  • Aeronautics and aerospace
  • Transportation
  • Household appliance

Avantages compétitifs

  • Effective at any frequency
  • Effective in a wide temperature range
  • Lightweight device

Propriété intellectuelle

PATENT PENDING IN FR, PRIORITY DATE : MARCH 11, 2013 (FR1352152)

Chef de projet

Jean-Christophe Gillet
Chef de projet matériaux mécanique

jean-christophe.gillet[@]pulsalys.fr

Si vous ne trouvez pas l'offre de vos rêves

Référence : L1132