NASA STTR 2008 Solicitation


PROPOSAL NUMBER: 08-2 T2.01-9951
RESEARCH SUBTOPIC TITLE: Foundational Research for Aeronautics Experimental Capabilities
PROPOSAL TITLE: Structural Health Monitoring with Fiber Bragg Grating and Piezo Arrays

NAME: Intelligent Fiber Optic Systems Corporation NAME: Washington State University
STREET: 2363 Calle Del Mundo STREET: Spokane Street, Sloan 120
CITY: Santa Clara CITY: Pullman
STATE/ZIP: CA  94085 - 1008 STATE/ZIP: WA  99164 - 3140
PHONE: (408) 565-9004 PHONE: (509) 335-5183

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Vahid Sotoudeh
2363 Calle Del Mundo
Santa Clara, CA 95054 - 1008
(408) 408-9000 Extension :21

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 5
End: 6

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
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.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
This project has direct NASA applications in the following areas:
1)Real-time SHM for UAVs such as Ikhana, Golfstream and Global Hawk
2)Advanced Technology Composites (ATC) project for Ares V launch vehicle and Crew Exploration Vehicle (CEV)
3)NASA support of Air Transportation Security programs
4)Integrated Vehicle Health Monitoring (IVHM)
5)Automated Nondestructive Evaluation for faulty structural components
6)Flight control System Real-time autonomous sensor validity monitors
7)Monitoring and control of composite structures manufacturing and assembly process
8)Self-monitoring structures with alarm and abort capabilities
9)Pyrotechnic test and data acquisition for shock response spectrum analysis.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
For aerospace vehicle health monitoring applications, the integrated, distributed optical sensor-actuator systems developed by the IFOS team will significantly increase the sensing capability as well as extend the applicability of fiber-optic sensors systems at low cost. Further applications include instrumentation for jet engines and flight control systems, oil exploration, marine structures, power plants, and critical infrastructures for homeland security. The IFOS systems will greatly contribute to improved aviation security technologies. IFOS' high-speed, high-resolution and multiplexed sensor systems coupled with advanced SHM techniques are uniquely suited to monitoring the health and real time condition of Air Transportation Systems (ATS). The proposed technology can be readily developed into on-board and real-time monitoring systems, allowing frequent and timely damage detection, security risk assessment and incident precursor identification. Thus, timely preparedness, preventive maintenance or repair activities can be more focused and efficient, enhancing the safety, security and service life of the ATS.

TECHNOLOGY TAXONOMY MAPPING (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.)
Aircraft Engines
Multifunctional/Smart Materials
Optical & Photonic Materials
Sensor Webs/Distributed Sensors
Structural Modeling and Tools
Testing Facilities
Testing Requirements and Architectures

Form Generated on 05-25-10 13:36