50 / 2021-10-13 09:12:51

Research on accurate modeling method of conductor section of marine cable based on image recognition technology

marine cable conductor; image recognition; geometric defects; finite element modeling;

Marine cable is one of the key equipment in the development of deep-sea oil,

gas and offshore wind energy. Cable conductor is one of the key components of marine cable transmission system with complex structure. However, it is difficult to meet the design requirements during the manufacturing process. The influence of manufacturing error on mechanical properties of the cable structure is difficult to get accurate depiction. At present, the numerical simulation analysis of the mechanical properties of marine cable conductor is often based on the ideal configuration, ignoring the geometric defects caused by the machining process, so it is impossible to accurately analyze and evaluate the mechanical properties. In this paper, by using the image recognition technology, the precise marine cable conductor finite element modeling with geometric defects and the irregular conductor positional relationship can be gotten based on the image recognition technology. The comparison between the finite element modeling based on image recognition and the finite element modeling of ideal configuration shows that the image recognition method can get the precise finite element modeling of the cable conductor with complex structure, random position and geometric defects. Compared to ideal configuration modeling method, the calculation results are quite different. The research in this paper can provide a new solution for the design error analysis of marine cable.