Marine Technology 2004Greg Articles
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Marine Technology
on February 2020Greater understanding of what goes on in the ocean is starting to become a reality – thanks to growing use of unmanned surface and underwater vehicles and developments in biological sensing. Elaine Maslin takes a look at what a team at MBARI has been doing.Gathering biological data from the oceans
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- Electric Motor Selection for Underwater Vehicles: Considerations of Partial Load Efficiency page: 18
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on February 2020It is easy to appreciate why permanent magnet synchronous motors (PMSMs) are popular for use in underwater vehicles (UVs). They are compact and efficient with a high power density. More importantly, perhaps, they allow for effective operation across a broad RPM range which is beneficial for vehicles
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on February 2020Copenhagen Subsea launched a new powerful Remotely Operated Vehicle (ROV), specifically developed for the offshore industry. The ROV is based on Copenhagen Subsea’s rim-driven thruster technology and is designed to be robust and reliable in challenging environments – qualities which inspired us to n
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on February 2020The search for the Argentinian submarine was like hunting for the proverbial needle in a hay stack, except that it was a piece of straw. Elaine Maslin reports. At 7.19am, local time, on November 15, 2017, the last message was received from the San Juan submarine. She belonged to the Argentinian navy
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- UUV Manipulators: Get a Grip page: 52
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on January 2020While much focus on resident subsea vehicles has been about the vehicles, there’s also been a lot of focus behind the scenes on creating electric tooling. The industry has relied on hydraulic tooling since tooling has been used, with the benefits and drawbacks that come with it. Leading the fi
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on January 2020The holiday season has just passed, and many may have heard the phrase, “good things come in small packages.” Does this hold true for today’s undersea vehicles? Indeed it does. One of the most striking recent trends in the field is the proliferation of compact and affordable, yet h
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on January 2020Marine autonomous systems and combinations of such systems are being increasingly put to the test in the offshore space. Elaine Maslin looks at how hybrid remote and autonomous systems are now being tested.Concepts like resident subsea vehicles, for inspection, repair and maintenance, are attractive
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on January 2020December 2019 marked the one-year anniversary since University of Tasmania sent ISE built AUV nupiri muka to Antarctica as part of the Antarctica Gateway Partnership. While there it successfully completed many survey missions under the Sørsdal glacier. What better way to celebrate this accomp
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- Ocean Energy: A Surge Coming in 2020 page: 14
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on January 2020Ocean Energy Systems (OES) was launched in 2001 as a technology collaboration program of the International Energy Agency (IEA). It was created in response to increased ocean wave and tidal current energy activity primarily in Denmark, Portugal and the United Kingdom. The organization today consists
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- Hybrid Autonomous Systems Evolve page: 30
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on January 2020Marine autonomous systems and combinations of such systems are being increasingly put to the test in the offshore space. Elaine Maslin looks at how hybrid remote and autonomous systems are now being tested.Concepts like resident subsea vehicles, for inspection, repair and maintenance, are attractive
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Marine Technology
on January 2020Unmanned Vehicles Collect Data for Improving Storm ForecastsThe influences of ocean conditions and currents on living environments are now more widely appreciated—from the Earth’s climate and severe weather conditions to fisheries and biodiversity. Sustained and widespread measurements are needed to
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- Subsea Robots in the Splash Zone page: 46
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on January 2020From their base deep within a former World War II U-boat pen, Norwegian outfit, OceanTech, is developing a set of robot tools that cling to offshore structures in order to effect inspection, maintenance and repair, or IMR. Old submarine anchorages are now subsea testing and training sites, but the N
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- Offshore Energy Outlook for 2020 page: 46
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on September 2019The “new normal” is a phrase tossed around often in offshore energy circles today as those servicing and operating in the sector grapple with the harsh realities of the prolonged industry downturn. Operators, service companies and equipment suppliers have been forced to adjust to oil selling at pric
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- Protecting Ports from Sea Level Rise page: 18
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on September 2019Coastal flooding disasters have occurred periodically through history often followed by construction of flood defenses to help ensure it does not happen again. One of the most well known was the 1953 North Sea Flood in the Netherlands when a storm surge occurred on top of astronomical high tid
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on September 2019From its founding in 1969, Oceanology International has evolved into what is arguably the biggest and best gathering for the global subsea technology community. To help celebrate Oi’s 50th, Marine Technology Reporter visits with David Ince, Event Director, Oceanology International for his insights o
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on September 2019A growing battalion of small, compact systems is marching in on the subsea world, in some ways making it a bigger space for more to enter. Elaine Maslin reports.Smaller remotely operated vehicles (ROVs) and smaller autonomous underwater vehicles (AUVs) are growing in number and in turn driving small
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on September 2019Anyone who has been around the Offshore Oil and Gas or the Marine industries for long has heard of plans for mining various minerals located on or just below the seafloor. In fact, when Howard Hughes built the Glomar Explorer in 1972, the cover story for its true mission – recovering a Soviet
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on September 2019If one is wondering when and if and where the offshore wind business is going to become established, wonder no longer. Massachusetts is the epicenter of the offshore wind business and as such will translate nicely for ocean tide and wave energy development. Synergies in offshore engineering, resourc
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on August 2019The ChallengeEelgrass (Zostera marina) is a valuable coastal habitat in Massachusetts, forming a complex underwater landscape that stabilizes seafloor and adjacent shoreline, filters the water of sediments and nutrients, and provides important habitat for shallow water species.South of Boston, the b
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on August 2019Sure, basic (open-ended) research gave us penicillin — but thousands of applied (commercial, finite) research projects carried out for governments and industry yield facts and non-stop innovation. At SINTEF, Norway’s premier research body, the breadth and number of research undertakings are mostly t