Device and method for monitoring and repairing crack of wing component

Abstract

The invention relates to a device and a method for monitoring and repairing a crack of a wing component, belonging to the technical field of performance safety monitoring equipment for aircraft components. The invention aims to constitute the device for monitoring and repairing the crack of the wing component by an electrode sheet, a single-chip microcomputer, a battery, a wave filter, a thermal imaging detector and an ammeter. According to the invention, the main skeleton and skin of an aircraft wing can generate different degrees of cracks due to metal fatigue accumulated by vibration in flight; the surface current generated by the electrode sheet and the monitoring current of the ammeter are utilized to realize crack monitoring; the electrode sheet applies a strong current onto a crackarea to enable the metal located at the position of the crack to approach a melting point for automatic crack repairing; the wave filter eliminates interference wave to guarantee normal crack monitoring; the thermal imaging detector monitors a temperature when a metal block repairs the crack; the single-chip microcomputer integrates monitoring information and controls the device to complete crackrepairing; and the battery provides weak current and strong current required for crack monitoring and repairing. The device provided by the invention can detect and eliminate safety hazards formed bymetal cracks of the wing component.

Description

technical field [0001] The invention relates to a device for crack monitoring and repairing of wing components and a method for crack monitoring and repairing of wing components, belonging to the technical field of aircraft component performance safety monitoring equipment. Background technique [0002] In recent years, my country's aircraft industry has achieved rapid development, and series of aircraft such as C919 have come out one after another. An aircraft is a combination of a whole set of systems, any system or structure failure may cause an accident. The most common cause of failure is metal fatigue. The aircraft will vibrate at various frequencies during flight, plus the pressurization / decompression cycle of each takeoff and landing. If any part is not checked and fatigue fracture occurs, it will cause an accident. In the Amsterdam Air Disaster in 1992, the pins of the engine rack were fatigued and fractured. Two engines fell at the same time and fell into a resid...

AI Technical Summary

Problems solved by technology

As the most important structure for generating lift, the wing is affected by forces in different directions during flight, coupled with the vibration of various frequencies of the aircraft itself during flight, the main components such as the main frame and skin are prone to metal fatigue. As a result, cracks are generated, which poses a great hidden danger to the safety of the aircraft.

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