Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Remotely operated vehicle (ROV)"”.
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In Service Above Ground Storage Tank Inspection with a Remotely Operated Vehicle (ROV)
… inside the tanks present a problem. To make such remotely operated vehicular systems more flexible and reliable, this study investigates the fundamental requirements and replaces the crawler with a remotely operated submersible.<br/><br/>The critical review of currently available ROVs showed that …
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Mechanical design of a contra-rotating propeller assembly for a small underwater ROV
… propeller assembly for a small underwater remotely operated vehicle (ROV), with the intent of commissioning a production run at a later time. The desired production rate was greater than one assembly per seven hour day with one machinist, at a material cost of less than $600 per assembly. …
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Highly maneuverable spherical robots for underwater applications
… task to accomplish. Alternatives to underwater remotely operated vehicle (ROV) inspection are very laborious, if possible at all. Current ROVs have difficulty navigating and effectively surveying these systems because walls and extrusions throughout the environment easily damage the external …
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Acoustically Controlled Remotely Operated Undersea Vehicles: A Quantitative Analysis
… from a U.S. Navy effort to alter an existing remotely operated vehicle (ROV) system. A vehicle reliant on a tethered connection to an operator requires adaptation to an untethered acoustically controlled vehicle. This project provides a tradespace exploration based in simulation of factors …
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The Eyeball ROV : an underwater Remotely Operated Vehicle featuring advances in rotational actuation, communication, and localization
The design for a spherical Remotely Operated Vehicle (ROV) with a camera, called the Eyeball ROV due to motions similar to the human eye, is presented in this thesis. The ROV features an actuation scheme that utilizes a two-axis gimbal for changing the location of the center of mass of the ROV. …
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Human factors engineering in sonar visual displays
Undersea technology is on the verge of equipping remotely operated vehicle (ROV) pilots with a three-dimensional (3-D), real-time display incorporating data from a wide variety of sensors including sonar (sound navigation and ranging), cameras, and lasers. Effective collection, computation, and …
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Development of an actively compliant underwater manipulator
… manipulator for installation on the underwater remotely operated vehicle (ROV) JASON. The goal of this work has been to produce a high fidelity force-controllable manipulator exhibiting no backlash, low stiction/friction, high backdriveability, wide dynamic range, and possessing a large work …
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Hybrid state estimators for the control of remotely operated underwater vehicles
… systems used in the control of underwater vehicles. Two different approaches to extend the range of acoustic position measurement systems are explored. The first approach is the use of an inexpensive Strapdown Inertial Measurement System (SIMS) to augment the acoustic with inertial position …
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Remotely operated vehicle exploring ichthyofauna association with habitat from shore-shelf, in an endemism hotspot in South Africa
… an area of commercial fishing importance. A remotely operated vehicle (ROV) explored the regions’ fish and benthic habitats and investigated their associations. This study’s results provide quantitative information on fish and habitat diversity in the intermediate depths off the Kei river …
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Quantitative fish survey of the submarine canyons of the iSimangaliso Wetland Park
… endemic species. A fish survey was conducted by remotely operated vehicle (ROV) that captured video footage at depths between 60 m and 160 m. Seven canyons (Island Rock, South Island Rock, Wright, Jesser, Diepgat, Leadsman and Chaka) and one deep reef (Diepgat Deep Reef) spread along 78 km of …
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A Comprehensive Integrity Monitoring System for Bolted Flange Connections
… the electromechanical impedance (EMI) method provide different approaches to monitor the characteristic variations in the metal-to-metal sealing condition. Upon seal failure, the acoustics generated by the sudden release of the escaping pressurized nitrogen gas were readily detected by the …
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Millipede-Inspired Locomotion for Rumen Monitoring through Remotely Operated Vehicle
… areas. One application is the development of a remotely operated vehicle (ROV) for rumen monitoring to improve our understanding of microbiology, and real-time physical changes and correlations with health. This interest is being driven from the desire to improve the safety and efficiency of …
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Patterns and potential environmental drivers of mesophotic communities of the warm temperate shelf of the Amathole Region, South Africa
… shelf in the Amathole offshore region, using a Remotely Operated Vehicle (ROV). This study piloted the application of the Australian developed CATAMI classification scheme to annotate images collected by ROV in South Africa. Data were collected on the ACEP: Imida Frontiers project on board the …
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Community Structure of Methane Cold Seeps in the Western Atlantic and Eastern Pacific
… research tools, an autonomous underwater vehicle (AUV) and a remotely operated vehicle (ROV). The study begins by examining seep fields about 200 nm off the South Carolina coast, at the Blake Ridge (~2150 m depth) and Cape Fear (~2580 m depth) Diapirs. Geophysical and photographic data …
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Development of the power distribution system and communications hub for an underwater remotely operated vehicle
… and testing of the third generation underwater remotely operated vehicle (ROV) produced by the University of Cape Town’s Robotics and Agents Research Laboratory (RARL). The ROV was designed and built in response to a request from the Department of Zoology for an ROV to aid their oceanic …
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Hydrodynamic added mass determination and attitude estimation of the Seahog - a remotely-operated underwater vehicle
The Seahog, which is an underwater Remotely-Operated Vehicle (ROV) was initiated to meet objectives set in conjunction with the marine biology group at the University of Cape Town for observation and light sample material collection from shallow sea floors. Prior to the commencement of this …