{
  "$type": "site.standard.document",
  "description": "The invention relates to an acoustic panel for an aircraft nacelle air inlet comprising a resistive skin (1) pierced with sound absorption holes (10), and a core (2) against which the resistive skin (1) extends. characterized in that the resistive skin (1) has a smooth visible face (11) and a…",
  "path": "/patents/1425493",
  "publishedAt": "2024-11-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D33/02",
    "AIRBUS OPERATIONS SAS [FR]"
  ],
  "textContent": "The invention relates to an acoustic panel for an aircraft nacelle air inlet comprising a resistive skin (1) pierced with sound absorption holes (10), and a core (2) against which the resistive skin (1) extends. characterized in that the resistive skin (1) has a smooth visible face (11) and a crenellated rear face (12) presenting an alternation of crenellations (14) and trenches (13), the sound absorption holes (10) being provided solely in the trenches (13) that is to say in an area where the thickness of the skin is lesser, which makes it possible to produce holes having a diameter both greater than the skin thickness and sufficiently small to have no impact on drag. The lesser thickness of the resistive skin at the level of the trenches does not make it more flexible than previous skins, the mechanical strength of the resistive skin according to the invention being guaranteed by the crenellations.",
  "title": "ACOUSTIC PANEL OF AIR INTAKE OF AN AIRCRAFT NACELLE WITH CRENELLATED RESISTIVE SKIN, AND PROPULSION ASSEMBLY AND AIRCRAFT PROVIDED WITH SUCH ACOUSTIC PANELS"
}