Tactical missile fault prediction method based on grey theory

Abstract

The invention relates to the technical field of tactical missile fault prediction, in particular to a tactical missile fault prediction method based on a grey theory. The method comprises the following steps: establishing a health factor group based on historical test data of the tactical missile; determining a predicted time slot based on historical test data of health factors in the health factor group; performing data whitening operation on a health factor data sequence with data loss in the health factor group based on the prediction time slot to obtain a corresponding whitening value; determining a grey theory prediction model taking time as a reference based on historical test data of the health factors in the health factor group and the whitening value; and determining the time wheneach health factor in the health factor group breaks down based on the grey theory prediction model. Therefore, the problem of tactical fault prediction can be effectively solved, and tactical missile fault prediction is realized.

Description

technical field [0001] The invention relates to the technical field of tactical missile failure prediction, in particular to a gray theory-based tactical missile failure prediction method. Background technique [0002] After a period of storage, testing, and fault maintenance of tactical missiles, the changes in the properties of their internal materials will lead to a decline in storage reliability, and eventually lead to a slow degradation of the missile state. Due to the different environmental stresses, usage conditions, maintenance and repair conditions experienced by individual missiles, the speed of their state degradation is also different. As a typical complex high-tech equipment, the tactical missile integrates mechanical, chemical, hydraulic, starting, electronic, electrical, infrared and optical devices, and has the advantages of small size, complex structure, strong system correlation, high technical content, and reliability. Requires high-level characteristics...

AI Technical Summary

Problems solved by technology

As a typical complex high-tech equipment, the tactical missile integrates mechanical, chemical, hydraulic, starting, electronic, electrical, infrared and optical devices, and has the advantages of small size, complex structure, strong system correlation, high technical content, and reliability. Requires high-level characteristics, so it is impossible to establish an accurate mathematical model of its health status development

At the same time, in the actual support application, tactical missiles have the characteristics of "long-term storage, one-time use", and the equipment test support data is scarce, and it is impossible to use traditional statistical analysis methods to predict the performance degradation and failure time of tactical missiles

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