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Machine vision acoustic panel repair with retention of acoustic properties

An acoustic and panel technology, applied in the field of repairing acoustic panels while retaining their acoustic properties, can solve problems such as the weakening of acoustic properties of acoustic panels

Active Publication Date: 2019-08-02
ROHR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Perforations can be formed in the patch, but in the overlap area the perforations are not aligned between the patch and the existing top skin so that the acoustic properties of the acoustic panel are diminished in the overlap area

Method used

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  • Machine vision acoustic panel repair with retention of acoustic properties
  • Machine vision acoustic panel repair with retention of acoustic properties
  • Machine vision acoustic panel repair with retention of acoustic properties

Examples

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Embodiment Construction

[0019] The detailed description of various embodiments herein refers to the accompanying drawings, which show various embodiments by way of illustration. While these various embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, it is to be understood that other embodiments may be implemented and that logical, logical, and logical implementations may be made without departing from the spirit and scope of the invention. Chemical and mechanical changes. Accordingly, the detailed description presented herein is for purposes of illustration only and not limitation. For example, steps recited in a description of any method or process may be performed in any order and are not necessarily limited to the order presented.

[0020] Furthermore, any reference to the singular includes a plurality of embodiments, and any reference to more than one component or step may include a single embodiment or step. Also, any references to...

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PUM

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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 CNCmachine (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.

Description

technical field [0001] The present disclosure relates to acoustic panels, and more particularly, to a method of repairing acoustic panels while preserving their acoustic properties. Background technique [0002] Aircraft nacelle structures for turbine engines typically include acoustic panels comprising, for example, a back skin and a perforated top skin with core material sandwiched between them. In some cases, the acoustic panels may be formed during manufacture with an undesirable void between the top skin and core, or the top skin may delaminate from the core material during operation, or the top skin may be Damaged in other ways. Existing restoration techniques involve removing a portion of the roof skin and then replacing that portion with a patch that overlaps the existing roof skin. Perforations may be formed in the patch, but in the overlap region the perforations are not aligned between the patch and the existing top skin so that the acoustic properties of the ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C73/10B29C73/12B64F5/40B29L31/30
CPCB29L2031/3076B29C73/12B23P2700/01B64F5/40B64D33/02B64D2033/0206B29C73/10B29C73/26B29C2073/268B64D29/00Y10T29/49734B23P6/005
Inventor C.Y.黄
Owner ROHR INC
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