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.


 
 

 
af-spacex

Air Force certifies SpaceX for national security space missions

Lt. Gen. Samuel Greaves, commander of the Air Force Space and Missile Systems Center and Air Force program executive officer for space, has announced the certification of Space Exploration Technologies Corporation’s Falco...
 
 
Army photograph

Army’s mid-tier radio advances battlefield network

Army photograph The mid-tier networking vehicular radio, or MNVR, is being tested extensively, including a limited user test, which was conducted this month at Network Integration Evaluation 15.2. This soldier is operating the ...
 
 
DARPA photograph

Human-robot teams compete June 5 at DARPA finals

DARPA photograph Team KAIST, from Daejeon, South Korea, and its robot DRC-HUBO negotiate mock rubble at a test site March 6, 2015. DARPA photo   In eight days, 25 human-robot teams will compete on the rubble-strewn field of a...
 

 
af-QF4

QF-4 aerial target program concludes

5/26/2015†-†One of the 82nd Aerial Target Squadronís QF-4s sits on the drone runway prior to takeoff May 12 at Tyndall Air Force Base, Fla. This unmanned QF-4 was used as a full-scale target and shot down by a pilot from t...
 
 
Army photograph by C. Todd Lopez

Smart-mortar will help Soldiers more effectively hit targets

Army photograph by C. Todd Lopez Nick Baldwin and Evan Young, researchers with the Armament Research Development and Engineering Center at Picatinny Arsenal, Pennsylvania, discuss the 120mm Guided Enhanced Fragmentation Mortar ...
 
 

Air Force assigns new chief scientist

The Air Force announced the service’s new chief scientist to serve as a science and technology adviser to the secretary of the Air Force and the chief of staff of the Air Force, May 21. Dr. Greg Zacharias will be the 35th chief scientist and is ready to “dive in” to his new role. “I...
 




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>