A ship seawater pipeline corrosion prediction and life evaluation method, device, equipment and medium

Abstract

The application relates to the technical field of material corrosion science, and provides a ship seawater pipeline corrosion prediction and service life evaluation method, device, equipment and medium, the method comprising the following steps: performing spatial dimension reduction and normalization on a corrosion data set to obtain a normalized spatial base matrix; projecting the corrosion data set to a low-dimensional space to obtain a projection coefficient matrix; performing time dimension reduction on the projection coefficient matrix to obtain a time base matrix and a parameter coefficient matrix; predicting a new parameter coefficient vector corresponding to a new working condition parameter through a mapping relationship, and calculating a new projection coefficient matrix based on the new parameter coefficient vector and the time base matrix; reconstructing a corrosion damage field based on the new projection coefficient matrix and the normalized spatial base matrix; and extracting a corrosion depth evolution curve of a target position of interest based on an evolved sequence of the reconstructed degradation corrosion loss field and obtaining a remaining service life. The application can realize rapid and accurate prediction and service life evaluation of a ship seawater pipeline corrosion process.

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