Studies of ROV concepts 2020
Date of publication: 2020
Authors:
Matteo Franchi, Francesco Fanelli, Mattei Bianchi,
Alessandro Ridolfi & Benedetto Allotta.
Underwater robots are nowadays employed for many
different applications; during the last decades, a wide
variety of robotic vehicles have been developed by
both companies and research institutes, different in
shape, size, navigation system, and payload. While the
market needs to constitute the real benchmark for
commercial vehicles, novel approaches developed
during research projects represent the standard for
academia and research bodies. An interesting
opportunity for the performance comparison of
autonomous vehicles lies in robotics competitions,
which serve as a useful testbed for state-of-the-art
underwater technologies and a chance for the
constructive evaluation of strengths and weaknesses
of the participating platforms.
Date of publication: 2020
Authors: Dianne L. McLean, Miles J. G. Parsons,
Andrew R. Gates, Mark C. Benfield, Todd Bond. David
J. Booth, Michael Bunce, Ashley M. Fowler, Euan S.
Harvey,
Peter I. Macreadie, Charitha B. Pattiaratchi, Sally Rouse,
Julian C. Partridge, Paul G. Thomson, Victoria L. G.
Todd, and Daniel O. B. Jones.
Remotely operated vehicles (ROVs) are used
extensively by the offshore oil and gas and renewables
industries for inspection, maintenance, and repair of
their infrastructure. With thousands of subsea
structures monitored across the world’s oceans from
the shallows to depths greater than 1,000 m, there is a
great and underutilized opportunity for their scientific
use. Through slight modifications of ROV operations,
and by augmenting industry work-class ROVs with a
range of scientific equipment, the industry can fuel
scientific discoveries, contribute to an understanding of
the impact of artificial structures in our oceans.
Date of publication: 2020
Authors:
Kyle L. Walker, Adam A. Stokes, Aristides Kiprakis, &
Francesco Giorgio-Serchi.
For controlling Unmanned Underwater Vehicles
(UUVs) in deep water, Proportional-Integral-Derivative
(PID) control has previously been proposed.
Disturbances due to waves are minimal at high
depths, so PID provides an acceptable level of control
for performing tasks such as station-keeping. In shallow
water, disturbances from waves are considerably
larger, and thus, station-keeping performance naturally
degrades. By means of simulation, this letter details the
performance of PID control when station keeping in a
typical shallow-wave operating environment, such as
that encountered during inspection of marine
renewable energy devices.
Date of publication: 2020
Authors:
Roman Gabl, Thomas Davey, Yu Cao, Qian Li, Boyang
Li, Kyle L. Walker, Francesco Giorgio-Serchi, Simona
Aracri, Aristides Kiprakis, Adam A. Stokes, and David M.
Ingram
Hydrodynamic forces are an important input value for
the design, navigation, and station keeping of
underwater Remotely Operated Vehicles (ROVs). The
experiment investigated the forces imparted by
currents (with representative real-world turbulence)
and waves on a commercially available ROV, namely
the BlueROV2 (Blue Robotics, Torrance, USA).
Date of publication: 2020
Authors:
Philipp Fischer, Holger Brix , Burkard Baschek,
Alexandra Kraberg, Markus Brand , Boris Cisewski, Rolf
Riethmüller, Gisbert Breitbach, Klas Ove Möller, Jean-
Pierre Gattuso, Samir Alliouane, Willem H. van de Poll,
and Rob Witbaard.
Purpose:
Cabled coastal observatories are often seen as future-
oriented marine technology that enables scientists to
conduct observational and experimental studies
underwater year-round, independent of physical
accessibility to the target area.
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