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Defense Technology
STATUS FOR ACTIVE PROJECTS AS OF SEPTEMBER, 2010
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Aluminum Mesh Explosion Suppression Systems
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Initial material characterizaton and corrosion testing was completed by the University of Kentucky College of Engineering and KTA-Tator, Inc of Pittsburgh, PA. MTTC has received final reports from both. Live fire ballistic testing was completed on 3 October 2003 by the U. S. Army’s Aberdeen Test Center (ATC), Aberdeen, MD. In September 2005, UK began work to model how the physical properties of aluminum mesh, such as thickness, strand width and cell geometry, affect the performance of the mesh in terms of shock wave propagation. This numerical simulation work, using two-dimensional Computational Fluid Dynamics (CFD) techniques, was completed in February 2006. The data from this simulation work predicted that the aluminum mesh could have a dramatic effect in reducing the temperature of an ignited vapor mixture, and also predicted a measurable pressure drop as a shock wave passes through a flat layer of the mesh. During the summer of 2006, UK conducted follow-on experimental work using relatively rudimentary explosive charges. UK's data revealed that a layer of aluminum mesh as thin as 2cm could reduce shock wave overpressure by an order of magnitude. In late October, UK submitted a proposal for follow-on work using more sophisticated and powerful explosive charges that will produce more consistent and repeatable effects. Work was completed in May 2008 and a final report is in progress.
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U.S. Coast Guard Defender Class Boat Engine Maint
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MTTC has learned that the Coast Guard has fully accepted all of MTTC's maintenance extension recommendations and is in the process of implementing them fleet-wide. The Coast Guard will therefore be saving money on initial procurement as well as a 62% reduction in maintenance costs. This project is a complete success for the USCG, MTTC and the taxpayer. Honda has informed the Coast Guard that it will honor the current warrantee as long as equipment misuse is not evident.
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