Award Data

1The most important reason for reduction and subsequent elimiantion of cadmuim coating in fasteners is the high potential health hazard. Industry is eliminating this metal from usage where ever possible. A family of zinc based alloys has shown favor for replacement. Binary systems with several other elemental additions have been investigated by workers in the plating field and found to be credible ...

COMPOSITE MATERIALS OFFER A WIDE RANGE OF ATTRIBUTED THAT CAN IMPROVE THE PERFORMANCE AND REDUCE THE COST OF NEW SUBMARINES. COMPOSITES HAVE NOT YET BEEN USED EXTENSIVELY IN SUBMARINES BECAUSE THERE IS LITTLE EXPERIENCE IN THE SUBMARINE ENGINEERING COMMUNITY ON WHICH TO BASE COMPONENT DESIGN. COMPOSITES, UNLIKE METALS, HAVE A VERY LIMITED BODY OF DESIGN GUIDANCE SPECIFICALLY ORIENTED TO SUBMARINE ...

1Reliable and continuous power to submarine electronics is essential for mission execution and for the safe operation of the ship. Digital electronics cannot continue operation through even very short power outages cause by bus transfer devices that have historically been sufficient for analog combat systems. The restart and reload that a digital system must execute after a short power interruptio ...

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We propose a method to identify, separate, and classify complex broad-band signals, and, subsequently, to track and locaiize the typically elusive threats emitting those signals. The proposed methods were developed by the authors, and have already undergone some basic preliminary testing. The classification portion of the algorithm allows one to separate, classify, and identify targets when the re ...

1The purpose of this effort is to develop a technique for protecting Hastelloy S from corrosion caused by liquid lithium. This can be achieved by coating the Hastelloy S with a refractory metal (tantalum, molybdenum, and tungsten). Northwest Technical Industries proposes to use explosive welding to metallurgically bond a thin layer of tantalum, molybdenum and tungsten to Hastelloy S. The objective ...

The U.S. Navy and Marine corps must be prepared to assault beaches laden with land mines and proximate to a region of water ranging from the beach high water mark to a depth of 80 feet which may also be laden with anti-ship mines. An effective method is required to counter this mine threat, which is compatible with naval assault time-lines, existing fleet assets, insensitive munitions requirements ...

Early detection, localization, and classification of submarine threats is an on-going mission within Anti-Submarine Warfare (ASW) programs. To counter the increasingly quiet passive signatures of these threats, the overall Figures of Merit of tactical and strategic surveillance systems have been improved. But as the resulting detection ranges and search volumes increase, so does the frequency and ...

Submarine combat systems have power support systems to carry them through temporary electrical supply outages caused by switching between unparalleled ac power sources. A simper, lighter, more reliable, and less expensive power supply is desired. Support systems based on capacitive energy storage are attractive for this application. They are power-rich, simple, reliable, safe, quiet, and maintenan ...