Rapid Inspection of Aluminum Hulls Below the Waterline Using Ultrasonic Guided Waves

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$149,873.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
N00167-11-P-0426
Award Id:
n/a
Agency Tracking Number:
N111-057-0170
Solicitation Year:
2011
Solicitation Topic Code:
N111-057
Solicitation Number:
2011.1
Small Business Information
3340 West College Ave., State College, PA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
168596554
Principal Investigator:
K. Van
Director of Engineering S
(814) 234-3437
jvanvelsor@fbsworldwide.com
Business Contact:
Michael Avioli
Vice President
(814) 234-3437
Mavioli@fbsworldwide.com
Research Institute:
Stub




Abstract
An ultrasonic guided wave phased array approach is proposed for the rapid inspection of aluminum ship hulls below the waterline. With the proposed guided wave phased array technology, a centralized probe is used to steer a beam of ultrasonic energy around the hull structure, like radar. The gathered data can then be used to construct an image of the inspected region. The work to be completed in the Phase I effort would address the selection of the optimal guided wave mode/frequency for aluminum hull geometries as well as the type of probe needed to generate said mode/frequency. The proposed technique would be thoroughly evaluated for the detection of corrosion and cracking damage in the hull structure. A Phase I Option effort would investigate alternative array geometries, begin the development of a software package, and review potential technology deployment methods such as robotics. Northrop Grumman Shipbuilding has agreed to provide access to similar hull structures if available and to provide information regarding typical hull geometries and constructions practices. A Phase II effort would transition the developed technology from the lab to actual hull structures.

* information listed above is at the time of submission.

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