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Award Abstract #0830235

NEESR-SD: Development of a Real-Time Multi-Site Hybrid Testing Tool for NEES

Division of Civil, Mechanical, and Manufacturing Innovation
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Initial Amendment Date: March 4, 2009
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Latest Amendment Date: March 8, 2010
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Award Number: 0830235
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Award Instrument: Standard Grant
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Program Manager: Joy Pauschke
CMMI Division of Civil, Mechanical, and Manufacturing Innovation
ENG Directorate for Engineering
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Start Date: March 15, 2009
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End Date: February 29, 2012 (Estimated)
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Awarded Amount to Date: $206,000.00
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Investigator(s): Richard Christenson rchriste@engr.uconn.edu (Principal Investigator)
James Ricles (Co-Principal Investigator)
Victor Saouma (Former Co-Principal Investigator)
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Sponsor: University of Connecticut
438 Whitney Road Ext.
Storrs, CT 06269-1133 (860)486-3622
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Program Reference Code(s): 036E, 043E, 1057, 1576, CVIS, 116E, 7231, 9178, 9231, 9251
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Program Element Code(s): 7396


This award is an outcome of the NSF 08-519 program solicitation George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research (NEESR) competition. This project will utilize the NEES equipment sites at Lehigh University and the University of Illinois at Urbana-Champaign. The goal of this NEESR-SD project is to develop, examine, implement, and demonstrate robust and accurate synchronization control tools that provide the capability to conduct real-time, multi-site experiment and simulation tests within the NEES framework. The ability to conduct real-time, multi-site experiments and simulation tests will allow NEES to reach its full potential as a distributed network of diverse equipment sites. Geographically-distributed, real-time testing between multiple NEES equipment sites will engage not just the diverse NEES experimental facilities, all with unique experimental and simulation capabilities, but in doing so will also bring together stakeholders with diverse backgrounds throughout earthquake engineering community. This innovative test technique will allow for larger and more complex experiments to be realized and provide experimental information from dynamic loading conditions previously not available. The project will develop simulation control algorithms necessary to implement real-time, multi-site experiments and examine the sensitivities of these algorithms to network delays, as well as measurement noise and variability and uncertainty in model parameters. A series of tests are planned using a small-scale system to develop and examine concepts and validate these methods with a fully physical shake table test. A user interface tool, based on the NEES Real-time Data Viewer (RDV), will be developed to facilitate conducting multi-site hybrid tests. Large-scale, real-time, multi-site experiments on full-scale NEES equipment will be conducted to demonstrate the application of these methods within the NEES network. An Internet-based education and outreach tool that accesses actual test data from the small-scale and large-scale tests will be developed to demonstrate the tools and methodologies developed within this research to the greater community. A training workshop will be held at the Lehigh NEES facility at the end of the project to promote the distributed use of NEES facilities through hybrid testing within both the NEES and the structural control communities. The results will be disseminated through NEES cyberinfrastructure, including NEEScentral, NEESforge and RDV.


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S.J. Kim, R.E. Christenson, S.F. Wojtkiewicz and E.A. Johnson. "Real-time hybrid simulation using the convolution integral method," Journal of Smart Materials and Structures, v.20, 2011. 


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