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System and method for automatically detecting leak noise in an aircraft

A detection system, a technology for aircraft, applied in the direction of detecting the presence of fluid at the leak point, vibration measurement in solids, liquid tightness measurement using liquid/vacuum degree, etc. Expensive experiments, etc., to avoid false detections

Pending Publication Date: 2019-06-28
AIRBUS OPERATIONS (SAS) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

however, these in-flight tests are expensive and time-intensive, which can impact aircraft shipment deadlines

Method used

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  • System and method for automatically detecting leak noise in an aircraft
  • System and method for automatically detecting leak noise in an aircraft
  • System and method for automatically detecting leak noise in an aircraft

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Embodiment Construction

[0052] In particular, the principle of the invention is the automatic detection of leak noise in an aircraft, allowing tests to be performed on the ground and at multiple operating pressure gradients.

[0053] figure 1 A system for detecting leakage noise in an aircraft according to the invention is schematically shown.

[0054] According to the invention, the detection system 1 comprises at least one acquisition device 3 and a monitoring device 5 . The acquisition devices 3 are configured to measure noise, and at least one of the acquisition devices 3 is also equipped with a pressure sensor 7 .

[0055] More specifically, each acquisition device 3 is intended to be installed in an area of ​​interest of the aircraft, for example on a door, in order to acquire data relating to the current noise in the area of ​​interest. The acquisition means 3 equipped with pressure sensors 7 are also configured to acquire data relating to the current pressure gradient between the cabin of t...

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Abstract

The invention proposes a method and a system for detecting leak noise in an aircraft, making it possible to perform ground tests in complete safety and over an entire cabin pressurization range, thusavoiding having to resort to a plurality of in-flight tests, said system includes: at least one acquisition device (3) intended to be installed in at least one area of interest of the aircraft (11), said acquisition device (3) being configured to acquire data in relation to current noise in said area of interest and data in relation to a current pressure gradient between the cabin of the aircraftand the outside, and a monitoring device (5) configured to control the acquisition of the data by said at least one acquisition device and to receive said acquisition data in order to detect any leaknoise in said at least one area of interest.

Description

technical field [0001] The present invention relates to the field of leak noise testing on aircraft, and more particularly to leak noise detection in a region of interest of an aircraft. Background technique [0002] Prior to shipment, aircraft are subject to a series of ground and in-flight tests and trials including leakage noise testing. Specifically, at some stage of development, a pressurization test is performed on the vehicle on the ground, during which a test compressor injects air into the vehicle to increase cabin pressure. Increasing the pressure creates a pressure gradient between the cabin and the outside to simulate the pressure gradient experienced by the aircraft in flight. The maximum gradient achieved is equal to the maximum gradient obtained in flight plus a certain margin of about 33%. Once the pressure has stabilized, the operator approaches the aircraft to manually inspect the aircraft from the outside to detect leak noises mainly at the door frames. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60G01H1/12
CPCG01M3/24G01M3/3263B64F5/60B64D47/00B64D2013/0618G01F23/296G01M3/007
Inventor 马克·洛赫尔恩史蒂芬·勒布鲁
Owner AIRBUS OPERATIONS (SAS)
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