The implementation of corrosion detection in submarine pipelines is difficult, and a combined PCA-MLP prediction model proposed to improve the accuracy pipelines. Firstly, rate multiphase flow pipeline South China Sea simulated by De Waard 95 transient simulation software OLGA compared with actual rate; then, according data OLGA, principal component analysis (PCA) used reduce dimensionality fac...

SUMMARY This paper provides a deep insight into fault location on long Submarine Power Cables. Several field results on submarine power cable faults are provided. For land cables the main focus is on the electrical and thermal design of cable insulation and on the electro-thermal and thermo-mechanical design of cable accessories, in order to grant sufficient endurance performances and reliabili...

The submarine exploration using robots has been increasing in recent years. The automation of tasks such as monitoring, inspection, and underwater maintenance requires the understanding of the robot's environment. The object recognition in the scene is becoming a critical issue for these systems. On this work, an underwater object classification pipeline applied in acoustic images acquired by F...

There are situations in offshore energy development where potential impact forces between submarine slides and pipelines need to be estimated. The horizontal slide – pipeline force, parallel the main travel direction of sliding mass normal axis, is generally dominant compared with other force components hence particular concern. In practice, may suspended at varying distances above seabed (gap)...

This paper outlines a practical design approach for submarine subsystems using a model-based systems engineering (MBSE) methodology. At the core of this approach is a system model that provides a precise, consistent, traceable and integrated description of the submarine subsystem architecture. The system model is used to support the flow-down of requirements from the submarine missions to syste...

Three types of connectors utilized in charging submarine escape appliances in simulated submarine escapes were evaluated with respect to speed of disconnect in a dry environment. Statistically significant differences in disconnect time were found between the various types of connectors, however, the magnitude of these differences is so small that they are of no practical significance in the sub...

Since the beginning of the twenty-first century, there has been widespread construction of submarine oil-gas transmission pipelines due to an increase in offshore oil exploration. Vessel anchoring operations are causing more damage to submarine pipelines due to shipping transportation also increasing. Therefore, it is essential that the influence of anchoring on the required burial depth of sub...