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.


 
 

 

Headlines May 29, 2015

News: U.S. Army chief opens door to embedding U.S. troops with Iraqi forces - After the fall of Ramadi, the Iraqi Security Forces need military and political leadership, Gen. Raymond Odierno says.   Business: No acquisition strategy yet for LCS frigates - Details of the new Littoral Combat Ship frigate program’s acquisition strategy are still being reviewed,...
 
 

News Briefs May 29, 2015

Finnish navy: Underwater intruder possible foreign submarine Finnish military officials say that an underwater object the navy chased last month in territorial waters and dropped several depth charges could have been a foreign submarine. A navy investigation released May 28 says that technical analysis did not provide sufficient proof of the presence of a submarine...
 
 
Lockheed Martin photograph by Chad Bellay

F-16 test pilots hit the ‘road’ to help train USAFE pilots

Air Force photograph by Airman 1st Class Kyla Gifford Three F-16s assigned to Spangdahlem Air Base, Germany, on a refueling mission last year. Two F-16 test pilots from the 416th Flight Test Squadron recently returned from a &#...
 

 
Navy photograph

Its reign in the fleet over, naval Sea King helicopter now rests at Pax Museum

Navy photograph At more than 54 feet in length with a 62-foot rotor diameter, the mighty SH-3A Sea King helicopter sits in its final spot at the Patuxent River Naval Air Museum. Designed as an anti-submarine warfare helicopter,...
 
 
boeing-korea

New Boeing Avionics Facility to enhance ROKAF readiness, affordability

Boeing formally opened a new avionics maintenance and repair center in the Yeongcheon Industry District of Daegu-Gyeongbuk Free Economic Zone May 28. The 10,000 square-foot facility will test and repair aircraft electrical syst...
 
 
Navy photograph by John F. Williams

ONR testing high-speed planing hulls

Navy photograph by John F. Williams A ship hull model attached to a high-speed sled moves through waves at the David Taylor Model Basin at Naval Surface Warfare Center, Carderock, during Office of Naval Research -sponsored rese...
 




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>