Machine vision acoustic panel repair with retention of acoustic properties
AssigneeRohr, Inc.
InventorChong Yaw Wee
Life of this patent
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Abstract
An acoustic panel (200) for an aircraft nacelle (100) may comprise a perforated first skin (220), a second skin (230), and a core (210) sandwiched between them. A camera system (330) may scan a perforation pattern of a damaged portion (311) of the perforated first skin (220). The damaged portion (311) of the perforated first skin (220) may be removed. A replacement patch (660) may be formed. A CNC machine (450) may drill the replacement patch (660) according to the perforation pattern. The perforations (425) in the replacement patch (660) may be aligned with perforations (325) in the perforated first skin.
Claims15
A method of repairing an acoustic panel comprising:
- scanning a perforation pattern for a damaged section of the acoustic panel;
- storing the perforation pattern in a computer;
- removing the damaged section of the acoustic panel;
- laying up a plurality of composite plies into a replacement patch on a bond tool;
- curing the replacement patch;
- instructing, by the computer, a computer numeric control machine to drill perforations matching the perforation pattern in the replacement patch;
- applying an adhesive to at least one of the replacement patch or the acoustic panel;
- and
- bonding the replacement patch to the acoustic panel.
Dependencies are inferred from the claim text.