Award Data

In traditional GMAW and modifications, the current melting the wire is the same as the current heating the base metal. To maintain a minimally acceptable productivity, the base metal heat input is typically much greater than the required to control the distortion at an acceptable or desirable level. In the modified GMAW proposed, a bypass torch is added to an existing GMAW system to bypass part of ...

Two different approaches will be investigated for producing aluminum alloys with a layer structure that have mechanical properties similar to Al 7050-T7 and Al 7075-T6 and greatly improved corrosion resistance. Layered aluminum alloys will be produced using the Novelis-Fusion™ casting process. This process is very cost effective and has been demonstrate on commercial products. The other appro ...

The objective of this program is develop high strength aluminum alloys ( as high strength as that of 7075-T6) that would not require anodization to achieve corrosion resistance. Among the Al alloy systems, only 7xxx and Al-Cu-Li alloy systems are capable of such a high strength level of 7075-T6 properties ( design minimum tensile yield stress of 75 ksi). Therefore, only these two alloy systems ...

Mezzo Technologies is currently developing an extremely compact, sturdy cross flow heat exchanger that is particularly effective in a variety of applications. The goal of this project is to optimize current panel design and configuration technology for use on the F-35/JSF aircraft, and examine the overall weight and volume gains by replacing plate fin heat exchangers currently used with Mezzo's c ...

The goal of this proposal will be to demonstrate the viability of a micro tube heat exchanger in an HVAC application on board a Navy vessel. Specifically, a product design sequence will be completed, resulting in R-134a economizer that will provide volume and weight savings over existing technologies. The program will include tasks to test the strength and overall structural properties of the head ...

The hybrid-electric technology being developed by LRG in this Phase II effort is a key enabling technology for the U. S. Navy. This hybrid electric drive train will provide a foundation for further research and development into electric propulsion, payloads requiring electric power, and high-speed hull design based on electric propulsors. This hybrid electric drive system will also support the d ...

SCOUT (Sensor Coordination for Optimal Utilization and Tactics) is a Neptune Sciences, Inc. project that solves a multi-static active sonar optimization problem in an arbitrarily complex environment. SCOUT combines several techniques to identify optimal locations and “ping” times for a discrete set of active sonars and receivers in a complex propagation environment. The Phase I results invol ...

The objective is to determine the best algorithmic approach to optimally select unmanned vehicle flight paths that maximize mission success for attached sensors. That involves trade-offs between a) active emissions and passive collections, b) high and low altitudes, c) high and low speeds, d) day and night operations, e) rough and smooth terrain, f) accuracy and efficiency, etc. The solutions wi ...

Since the Second World War, increased performance has been acquired by investing heavily in expensive new sensor hardware, including advanced off-board sensors, at the near exclusion of developing new algorithms and tactics to optimize use of sensors in complex environments. The shift toward threats in just such hostile areas demands a more synergistic approach wherein new sensors breed new tacti ...

DEVELOPMENT IS PROPOSED OF AN IMPROVED TYPE OF 400 HZ LINE VOLTAGE REGULATOR (LVR) THAT INHERENTLY PROVIDES LOW-DISTORTION OUTPUT VOLTAGE WITH NON-LINEAR LOADS WITH DISTORTED INPUT VOLTAGE. REGULATION IS ACCOMPLISHED BY ALTERNATELY SWITCHING AT HIGH FREQUENCY A BOOST OR A BUCKTRANSFORMER SECONDARY WINDING IN SERIES BETWEEN THE LVR INPUT AND OUTPUT. THE LVR FUNCTIONS AS A VARIABLE-RATIO TRANSFORMER ...