Wednesday, December 25, 2024

Office Of Naval Research News

Efficient Wave-Generated Power … Really!

SurfWec Artist Concept. Images Courtesy:  SurfWEC LLC.

Wave-generated power could be considered the Rodney Dangerfield of offshore renewable energy sources; it gets no respect. There have been a number of high-profile, expensive failures that have conspired to give the sector a poor reputation despite a number of engineering advances. A new entrant is SurfWEC offering a patented “surf-making” Wave Energy Converter which has been in development since 2007.

Scientists Uncover Explanation for Hidden Ocean Swell Interactions

Ocean engineers from MIT, the University of Minnesota at Duluth and the Woods Hole Oceanographic Institution have accurately simulated the motion of internal tides along a shelf break called the Middle Atlantic Bight — a region off the coast of the eastern U.S. that stretches from Cape Cod in Massachusetts to Cape Hatteras in North Carolina. (Image: Google Earth)

Better simulations of internal tides may benefit sonar communications, protect offshore structures, and more. In certain parts of the ocean, towering, slow-motion rollercoasters called internal tides trundle along for miles, rising and falling for hundreds of feet in the ocean’s interior while making barely a ripple at the surface. These giant, hidden swells are responsible…

Unmanned Underwater Vehicles: Is Bigger Better?

Mineman 3rd Class John Stephen-Torres, Commander, Task Group (CTG) 56.1, observes data from a MK 18 MOD 2 UUV for a training evolution during a mine countermeasures squadron exercise (SQUADEX) aboard the Bay-class landing dock ship Cardigan Bay (L3009) of the Royal Fleet Auxiliary. CTG 56.1 conducts mine countermeasures, explosive ordnance disposal, salvage-diving, and force protection operations throughout the U.S. 5th Fleet area of operations. (U.S. Navy photo by Jonah Stepanik)

Undersea Superiority will rely on Large Underwater Vehicles, but the question begs ... Is bigger better? The U.S. Navy has many mundane, messy and perilous underwater missions that are better performed unmanned vehicles. When considering the right vehicle for the mission, size does matter. Unmanned Underwater Vehicles (UUVs) are classified into three basic size categories: man-portable…

STEM: SeaPerch Underwater Robotic Championships

Excitement continues to build for the Fourth Annual National SeaPerch Challenge, as 2014 will see the largest group of SeaPerch competitors ever to assemble and compete for the title of National Champion. Hosted by the Mississippi Regional SeaPerch Committee, this year’s national competition will be held at the University of Southern Mississippi (Southern Miss) in Hattiesburg, MS, on Saturday May 17, 2014.

U.S. Navy eyes greater presence in Arctic from 2025

The U.S. Navy is mapping out how to expand its presence in the Arctic beginning around 2020, given signs that the region's once permanent ice cover is melting faster than expected, which is likely to trigger more traffic, fishing and resource mining. "The Arctic is all about operating forward and being ready. We don't think we're going to have to do war-fighting up there…

Fullscale Production of Kongsberg Seaglider Begins

Tank testing KONGSBERG Seaglider

Kongsberg Maritime subsidiary Kongsberg Underwater Technology, Inc. (KUTI) has started full scale production of the innovative KONGSBERG Seaglider Autonomous Underwater Vehicle (AUV) from a new fabrication centre at its facility in Lynnwood, Washington. This follows KUTI’s acquisition of the exclusive license to develop, manufacture and market the innovative Seaglider system from the University of Washington in May 2013.

Today in U.S. Naval History: August 8

Today in U.S. 1813- U.S. 1959 - Announcement of Project Teepee, electronic system to monitor 95% of earth's atmosphere for missile launchings or nuclear explosions. System developed by William Thaler, Office of Naval Research physicist. For more information about naval history, visit the Naval History and Heritage Command website at history.navy.mil.

Today in U.S. Naval History: August 1

Lookout on the bridge of USS Nautilus (SSN 571) keeps an alert watch for pieces of ice as the Nautilus presses closer to the Polar Ice Cap, August 1958. (NHHC Photograph Collection, L-File, Ships)

Today in U.S. 1801 - U.S. 1921 - Successful tests of gyroscopic high level bombsight (Norden Bombsight) at Torpedo Station, Yorktown, Va. Carl Norden developed the bombsight for the Bureau of Ordnance. For more information about naval history, visit the Naval History and Heritage Command website at history.navy.mil.