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| Life Prediction of Organic Coatings Based on Grey System Theory in Deep-sea Pressure-Velocity Coupling Environment |
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| DOI：10.7643/issn.1672-9242.2023.02.009 |
| KeyWord:deep-sea pressure-velocity coupling environment organic coating grey system theory wet adhesion water transport lifetime prediction |
| Author | Institution |
| CHEN Yu-fan |
Joint Research Division of Northeastern University, Shenyang National Laboratory for Materials Science, Shenyang , China |
| MENG Fan-di |
Joint Research Division of Northeastern University, Shenyang National Laboratory for Materials Science, Shenyang , China |
| LIU Li |
Joint Research Division of Northeastern University, Shenyang National Laboratory for Materials Science, Shenyang , China |
| CUI Yu |
Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang , China |
| LIU Rui |
Joint Research Division of Northeastern University, Shenyang National Laboratory for Materials Science, Shenyang , China |
| WANG Fu-hui |
Joint Research Division of Northeastern University, Shenyang National Laboratory for Materials Science, Shenyang , China |
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| Abstract: |
| The work aims to establish a life prediction model of organic coatings in the deep-sea pressure-velocity coupling environment, and predict the lifetime of organic coating in this environment. First, a wet adhesion GM (1,1) model was established according to the grey system theory and the results of wet adhesion change of the coating. Then based on the experimental results in this environment, the diffusion model of the coating water transport was established. Finally, the grey relational analysis method was used to calculate the weight factors of the two failure influencing aspects in the coating failure process and establish the mathematical model of coating failure based on these two influencing aspects. After mathematical statistics verification and experimental results comparison verification, the model had good accuracy and high reliability. The model can accurately predict the lifetime of organic coatings in the deep-sea pressure-velocity coupling environment. |
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