Siport21 Develops Moored Ship Motion Predictive System For Port Of Bahia De Algeciras

The maritime and port consultancy company, Siport21, has presented in the 7th Ports and Coastal Technical Congress and 4th Mediterranean Days (PIANC) a moored ship motion predictive system for the Port Authority of Bahia de Algeciras. This system is enabled to integrate in SAMPA (Autonomous Measurement, Prediction and Alert System).

SP21_ATPYC_Algeciras_JR_ — Image Credits: siport21.com

This system, developed by Siport21, communicates warnings related to the operational limits of moored vessels, in order to improve the safety and operability of the terminal.

The model is based on a methodology which was used in the CEPSA oil jetties of the Port of Algeciras and it was divided into different phases. First of all, “in situ” measurements of the movements of nine vessels were developed in four berths, with simultaneous measurements of tide current, waves and local wind. A total of 135 hours of data were collected.

After that, a moored ship numerical model was calibrated to reproduce the dynamic behavior of the measured vessels. The next step was to determine the maximum motion criteria acceptable for the design vessels and the comparison with the values stablished in the bibliography (ROM, PIANC, BS). Based on the numerical model, it was possible to reproduce the dynamic response of a wider range of ships under different environmental conditions, extending the scope of the limited number of measurements.

Algeciras_prediccion — Image Credits: siport21.com

Finally, a ship motion predictive system was developed able to integrate with SAMPA in order to improve the management of CEPSA oil jetties, based on a wide matrix of meteorological and vessels.

This model is part of a series of initiatives of the Port Authority of Bahia Algeciras oriented to develop powerful analysis tools, such as SAMPA, SAFEPORT and a high-resolution hydrodynamic model. These systems tackle the interaction between the physical environment, vessel and infrastructure in order to evaluate the reliability, functionality and operability of the port areas.

The following phase will be to develop an advanced prediction system of vessel operability for the whole port, including the study presented today. Siport21 is also involved in this challenging project.

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