System for detecting excess material in an enclosed area of an aircraft assembly and component and method of use

By applying vibration force to aircraft components and analyzing collision sounds using a vibration test bench and sound signal acquisition device, the problems of low efficiency and safety risks in foreign object detection in enclosed areas are solved, achieving efficient and safe foreign object detection.

CN118323475BActive Publication Date: 2026-06-02SHENYANG AIRCRAFT CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG AIRCRAFT CORP
Filing Date
2024-05-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, methods for detecting foreign objects in enclosed areas of aircraft structures are inefficient, susceptible to human factors, have a high probability of missed detections, and pose safety risks.

Method used

A vibration test bench is used to apply continuous vibration force to the product under test. Sound signal acquisition sensors are used to collect the collision sound signals of objects inside the closed area, and the results are analyzed and processed by a comprehensive test bench to determine whether there are any foreign objects.

Benefits of technology

It has automated and digitized the detection of foreign objects in the enclosed areas of aircraft components, improved the detection accuracy, and reduced safety and quality risks.

✦ Generated by Eureka AI based on patent content.

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    Figure CN118323475B_ABST
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Abstract

The application provides a system and method for detecting excess of aircraft components and parts closed area, belonging to the technical field of aircraft detection. The application fixes the product to be detected on a vibration platform, the lower surface of the vibration platform is fixed on the base through a spiral spring, the exciting motor on the base converts rotation into vibration of the vibration platform through a rotating wheel and a connecting rod, a sound signal acquisition device is installed on the product to be detected, and whether excess exists is judged by collecting the sound signal; the application creatively uses the vibration principle to provide a new method for checking excess in the closed area of the aircraft. The detection system uses digitalization and automation technology to realize digitalization and automation of the excess detection of the aircraft, completely changes the manual detection mode of "knocking and listening", significantly improves the accuracy and safety of the excess detection in the closed area of the aircraft parts, and reduces the safety risk and quality risk of the excess detection in the closed area of the aircraft structure.
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