A mechanical fault diagnosis optimization method and system

Abstract

The invention discloses a mechanical fault diagnosis optimization method and system. The method includes a preparation step and a diagnosis step, and in the preparation step, constructs a diagnosis sample library containing all currently known diagnosis samples and constructs several unknown diagnosis samples, and then According to the known diagnostic samples and unknown diagnostic samples, train and generate a fault diagnosis algorithm; in the diagnosis step, use the training fault diagnosis algorithm to diagnose the diagnostic samples obtained from the field to represent the current operating state of the machine. If the diagnosis result is an unknown operating state, use Techniques such as expert analysis or on-site analysis determine the operating status of the machinery, and update the diagnostic samples to known diagnostic samples, and retrain the fault diagnosis algorithm after deleting unknown diagnostic samples that are similar to the most recently updated known diagnostic samples. The invention can realize the dynamic improvement of the diagnosis sample library and the fault diagnosis algorithm, improves the accuracy of fault diagnosis, thereby improving the operation quality of mechanical equipment and improving production efficiency.

Description

Technical field [0001] The present invention relates to the field of mechanical fault detection, in particular to a mechanical fault diagnosis optimization method and system. Background technique [0002] With the rapid development of modern industry and science and technology, the structure of modern equipment is becoming more and more complex, the functions are becoming more and more perfect, and the degree of automation is getting higher and higher. Not only are different parts of the same equipment related to each other and closely integrated, but also different equipment There is still a close relationship between them, forming a whole in the production process. Therefore, a single failure may cause a chain reaction, causing the entire equipment and even the entire production process to fail to operate normally, so mechanical failure diagnosis is of great significance. [0003] Fault diagnosis is a new comprehensive intersection that is inspired by medical testing and diagnos...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a mechanical fault diagnosis optimization method and system for the current technical problems of low accuracy of mechanical fault identification and imperfect fault samples

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