Structural Health Monitoring with Fiber Bragg Grating and Piezo Arrays

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,999.00
Award Year:
2010
Program:
STTR
Phase:
Phase II
Contract:
NNX10CB58C
Award Id:
90853
Agency Tracking Number:
080049
Solicitation Year:
n/a
Solicitation Topic Code:
T2
Solicitation Number:
n/a
Small Business Information
2363 Calle Del Mundo, Santa Clara, CA, 94085
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
877452664
Principal Investigator:
VahidSotoudeh
Principal Investigator
(408) 408-9000
vs@ifos.com
Business Contact:
BehzadMoslehi
CEO/CTO
(408) 565-9004
Research Institute:
Washington State University

Spokane Street, Sloan 120
Pullman, WA, 99164
(509) 335-5183

Abstract
IFOS and its research institute collaborator, Washington State University (WSU), have demonstrated feasibility of a structural health monitoring (SHM) system for aerospace vehicles such as Unmanned Aerial Vehicles (UAVs) or commercial airliners. In Phase 1, a unique high-speed, high-channel count fiber Bragg grating (FBG) sensor interrogation system enabling a new Lamb wave-based damage detection method was demonstrated. This SHM system allows accurate detection of damage in rectangular composite plates simultaneously collected from a plurality of strategically placed FBG sensors using relatively few piezo actuators. Utilization of structurally integrated, distributed sensors to monitor the health of a structure allows for high-speed collection and interpretation of sensor signals, coupled with real-time data processing. The proposed system provides automated diagnosis and prognosis capabilities, greatly reducing the overall inspection burden. Phase 2 is designed to advance the technology towards specific NASA flight research testbed platforms, particularly Ikhana. During Phase 2, IFOS will collaborate with prime system contractors to address challenges and risks associated with the intended operational environment, including (a) generation of a complete flight worthy design, (b) performance enhancement and ruggedization of the interrogator and sensors, (c) optimization of damage detection algorithms and their implementation, and (d) total system performance validation and evaluation.

* information listed above is at the time of submission.

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