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Viewing 1 to 4 of 4
2010-08-10
Article
VACCO Industries has been awarded a five-year contract worth up to $35 million to supply T-700 anti-icing valves for use on U.S. Army UH-60 series Black Hawk helicopters. Based on the Army's historical usage patterns for this product, and previous T-700 contract quantities delivered, VACCO expects to receive additional purchase orders for the full quantity of products over the term of the contract.
2011-10-18
Technical Paper
2011-01-2735
Daniel N. Valyou, Piergiovanni Marzocca, Leon Manole, Wilfredo Toledo
Newly developed technologies are enabling the design of Unmanned Aerial Vehicles (UAVs) and Micro Air Vehicles (MAVs) with heretofore unrealized capabilities. A tube-launch MAV would allow the increased flexibility to launch an aircraft rapidly without need for a runway or complex launching system, either from a vehicle, installation, or as a man-portable device. The MAV would fill the diameter of the launch tube and deploy aerodynamic lifting and control surfaces after launch. In order to deploy the lifting surfaces the MAV must be capable of deploying control surfaces, negating any tube-imparted roll rate, and developing an optimal flight attitude automatically. An experimental method was developed to characterize the aerodynamics and stability of a blunt body spinning under conditions of roll rate decay in the Clarkson University High Speed Wind tunnel. This method is to be used to evaluate the development of an active roll rate control system for spinning projectiles.
2008-11-11
Journal Article
2008-01-2864
Edward Dawidowicz
A study was made to determine the effectiveness of low power wind energy harvesting for mobile applications. Experimental and simulated data has shown that harvesting of alternative energy resources is viable for potential mobile applications. This conducted study incorporated a mobile configuration consisting of a wind-photovoltaic hybrid in concert with a vehicle generator. The study has demonstrated an improvement in overall efficiency of the power generation system.
2008-11-11
Journal Article
2008-01-2865
Terrill Atwater, Anthony Pellegrino, Anthony DeAnni, Ronald Thompson, Laura Cristo
This paper summarizes a series of papers investigating the, in use, behavior of lithium-ion cells and packs. Initial efforts concentrated on cell data 1, 2, 3 and 4 and were reported in 2003 through 2006. Follow-on efforts concentrated on battery pack data 5, 6 and 7 and were reported in 2007 through 2008. In these efforts lithium-ion cells and batteries (4P4S, 2P4S and 4S) were cycled at various conditions. Battery packs, fully augmented with control and monitoring electronics, were subjected to an external heat source at varying intensities which were applied to the base of the battery during both charge and discharge. This heat source effectively heated one cell of the battery string.
Viewing 1 to 4 of 4