Early warning monitoring and condition constructing method and device for component surface failure

Abstract

The invention relates to a warning monitoring method of failure type deformation and fracture type cracks based on the surfaces of components, a condition constructing method and a device thereof. The invention is characterized in that the warning monitoring method comprises the failure signal acquisition and the signal processing. The condition constructing method comprises the preparation of a driving layer, the preparation of a network bridge layer, the preparation of a signal acquisition sensor, the manufacturing of a signal transmission connection circuit and the manufacturing of a loop of an information processing system. The device prepared according to the method comprises the driving layer, the network bridge layer and a protection layer. The signal acquisition sensor is connected with the connection circuit board of the information processing system through conductors which are connected through palisade coupons. The connection circuit of the information processing system isconnected with I / O of a programmable controller. The programmable controller is connected with a monitoring output device through an adaptor. The warning monitoring method of failure type deformationand fracture type cracks based on the surfaces of components, the condition constructing method and the device have the advantages of simple method, cheap raw materials and accurate positioning, can realize the real-time state monitoring of key parts of the surfaces of the component, are beneficial to the rapid judging of operators and can avoid the happening of major accidents.

Description

technical field [0001] The invention belongs to the technical field of surface crack inspection, and relates to an early warning monitoring method and condition construction method and device for component surface failure, in particular to an early warning monitoring method and condition construction method for destructive deformation and fracture cracks on the surface of a component. its device. Background technique [0002] With the continuous development of human society, people have higher and higher requirements for the performance of mechanical equipment. Due to the limitations of the nature of equipment components, they often fail when responding to high-performance requirements, resulting in immeasurable consequences. For example, the high-frequency vibration of the aircraft fuselage during flight will cause the bolts in some key parts to loosen or even fall off, resulting in the tragedy of aircraft crash. These catastrophes are actually originally based on the dest...

AI Technical Summary

Problems solved by technology

The disadvantage of this detection method is that the accuracy is low, and it is difficult to accurately determine the specific location of the crack

CN1049056 patent application literature discloses a method, which is to vapor-deposit sensitive elements on all possible extended parts of the dielectric substrate, and electrically connect the dielectric substrate on which the sensitive elements are evaporated to the measuring instrument. Crack detection, this method can expand the measurement range of cracks, and the accuracy is also improved to a certain extent, but the evaporation process requires more complicated special equipment, the cost is high, and it is not conducive to on-site operation, and the process is difficult to master and control

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