Defense

February 20, 2013

NACRA Testbed executes corrosion sensor technology project

A UH-1N helicopter, testbed for the Naval Aviation Center for Rotorcraft Advancement, flies a mission near the Chesapeake Bay to test and demonstrate integrated corrosion sensing technology. Early detection of metal-killing corrosion could cut total ownership costs for all Department of Defense rotorcraft in the near future.

Naval Aviation Center for Rotorcraft Advancement Technology Demonstration and Development teams have joined industry partner Luna Innovations, Inc., to test and demonstrate integrated corrosion sensing technology.

ìWe estimate 90 percent of an aircraftís total ownership cost occurs after delivery, said Ashley Morgan, NACRAís technology project coordinator. ìMore than 30 percent of that is due to corrosion and those costs escalate as the aircraft ages.

But more importantly, Morgan asserted, the issue is safety.

îCorrosion can alter residual strength and structural integrity,î Morgan said.

ìIf you can put sensors in the aircraft structure for early detection and take appropriate corrosion mitigation actions, you can decrease overall downtime and expense, not to mention add a higher degree of safety,î said NACRAís resident materials expert Dr. Suresh Verma.

Enter NACRAís corrosion sensor project that extends development efforts initiated through the Navyís Small Business Innovation Research Program.

We installed a combined wired and wireless corrosion monitoring system provided by Luna with installation design provided by Wyle on our UH-1N testbed helicopter in July 2012 and have been flying it as a ëride-alongí with our other project work,î Morgan said. ìWith this technology installed, we can track environmental exposure and specific conditions at corrosion hot-spots as a function of time, using inputs from various environmental and corrosivity sensors.

Specifically, the project measures air and surface temperatures, relative humidity, solution resistance and polarization resistance to predict aluminum corrosive activity.

Morgan said the aircraft sensors gathered and stored this environmental data that test engineers sent to Luna for analysis.

ìData from the wired sensors and the wireless sensor hub were used to classify corrosivity within the airframe and the environmental measurements were strongly correlated to National Oceanic and Atmospheric Administration weather station data,î said Lunaís Dr. Fritz Friedersdorf, director of intelligence systems.

This project and the resulting data contributed to the Air Force ordering a total of 20 of these systems for demonstration on Air Force H-60s, Friedersdorf said. ìThe first set will be installed the week of Feb. 18, 2013. This would not have been possible without the Navyís support and the availability of the NACRA test bed aircraft.

The project is scheduled to fly on the NACRA testbed indefinitely.




All of this week's top headlines to your email every Friday.


 
 

 
Navy photograph

Future USNS Fall River delivered

Navy photograph The joint high speed vessel USNS Fall River (JHSV 4) completes acceptance trials testing and evaluations in the Gulf of Mexico. The ship’s trials included dockside testing to clear the ship for sea and at-...
 
 
Air Force photograph by Michael J. Pausic

Future of NATO: Adapting to a new security environment

Air Force photograph by Michael J. Pausic Gen. Phillip Breedlove informs the assembled crowd about the results of the recent NATO Summit and the areas of instability that affect Europe that have regional implications. Seated in...
 
 
Air Force photograph by SSgt. Carlin Leslie

Air Force leaders discuss nuclear enterprise

Air Force photograph by SSgt. Carlin Leslie Lt. Gen. Stephen Wilson, Air Force Global Strike Command commander, speaks at the The Nuclear Enterprise panel during the Air Force Association Air and Space Conference and Technology...
 

 
Army photograph

Night turns into day: Army researchers enable night lethality

Army photograph In complete dark from significant standoff, Soldiers use medium wave infrared technology to turn night into day. In science fiction, technology problems are solved with the stroke of a writer’s pen. In rea...
 
 

Breedlove: U.S. reconsidering troop reductions in Europe

NATOís Supreme Allied Commander Europe said today that Pentagon leaders are reviewing decisions to scale down U.S. military forces in Europe in light of the changing security environment on the continent triggered by Russiaís annexation of Ukraineís Crimean peninsula and Moscowís ongoing support for rebels in the east. I have talked to leadership here about...
 
 
Air Force photograph by MSgt. J. Scott Wilcox

Aerial target QF-16 takes to the sky

Air Force photograph by MSgt. J. Scott Wilcox The first unmanned QF-16 Viper struck down over the Gulf of Mexico Sept. 5, 2014, was part of a joint effort between the Test and Training Division at Eglin Air Force Base, Fla., an...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>