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

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00167-11-P-0426
Agency Tracking Number: N111-057-0170
Amount: $149,873.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: N111-057
Solicitation Number: 2011.1
Small Business Information
FBS, Inc.
3340 West College Ave., State College, PA, -
DUNS: 168596554
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 K. Van
 Director of Engineering S
 (814) 234-3437
 jvanvelsor@fbsworldwide.com
Business Contact
 Michael Avioli
Title: Vice President
Phone: (814) 234-3437
Email: Mavioli@fbsworldwide.com
Research Institution
 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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