A methodology for DP capability studies on remotely operated vehicles

Juan A. Ramírez-Maćias, Rafael E. Vásquez, Asgeir J. Sørensen, Svein Sævik

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Scopus citations

    Abstract

    Dynamic Positioning (DP) capability studies are used to assess if a vessel has sufficient thrust capacity to withstand environmental loads while keeping its position and orientation at a specified set-point or path. These studies are usually performed on ships and other DP-controlled surface vessels; consequently, standards and procedures for these are widely known. In this work, a methodology for conducting a DP capability study for Remotely Operated Vehicles (ROV) is presented. Due to the nature of ROV operations, a DP capability study should include different features that are not common to surface vessels. In this case, an ROV connected to a surface vessel through a tether is considered. During operation, the tether is subject to varying current loads that are accumulated along the water column and transferred to the vehicle. Therefore, the ROVs thrusters must be able to withstand, in addition to its own drag, three-dimensional loads due to three-dimensional currents and umbilical-related loads. To illustrate the methodology, two case studies are considered: the DP capability of an ROV that has to operate in the Colombian Caribbean and an existing ROV operating in the North Sea.

    Original languageEnglish
    Title of host publicationOcean Engineering
    PublisherAmerican Society of Mechanical Engineers (ASME)
    ISBN (Electronic)9780791857731
    DOIs
    StatePublished - 2017
    EventASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norway
    Duration: 25 Jun 201730 Jun 2017

    Publication series

    NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
    Volume7A-2017

    Conference

    ConferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
    Country/TerritoryNorway
    CityTrondheim
    Period25/06/1730/06/17

    Bibliographical note

    Funding Information:
    This work was developed with the funding of the Fondo Na-cional de Financiamiento para la Ciencia, la Tecnología y la In-novación, Francisco José de Caldas; the Colombian petroleum company, ECOPETROL; the Universidad Pontificia Bolivariana -Medellín, UPB; the Universidad Nacional de Colombia - Sede Medellín, UNALMED; through the Strategic Program for the Development of Robotic Technology for Offshore Exploration of the Colombian Seabed, project 1210–531–30550, contract 0265– 2013. This work was also partly supported by the Research Council of Norway through the Centres of Excellence funding scheme, project number 223254—AMOS. The authors thank to the Norwegian University of Science and Technology’s Centre for Autonomous Marine Operations and Systems for Juan A. Ramírez-Macías’s PhD internship, carried out in 2016.

    Publisher Copyright:
    Copyright © 2017 ASME.

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