Award Data

Modern multi-core and many-core digital signal processors (mDSPs) offer greater processing capabilities than any other reprogrammable device, with some even performing on par with an FPGA. mDSP development environments support standard languages such as C/C++, and provide application scheduling optimized for throughput or latency. In order to provide power-optimal application scheduling, e.g., on ...

Pyrowear® 675 is noted as a high performance bearing material used in turbine engine and other higher temperature applications. The mechanical properties and stability necessary for these applications is achieved via carburizing by design. The carbides that form to provide the hot hardness and desired mechanical properties for bearing service are at the expense of corrosion resistance. As the car ...

The frequency spectrum of interest for hydrophones used in Naval tactical systems, ocean surveillance systems, or for environmental monitoring is continuing to expand, due to increased interest in passively detecting third-world submarines, merchant shipping, biologics, etc. as well as increased interest in multistatic active sonars. LewTech is proposing that our Phase I and follow-on phases conce ...

Undersea tracking ranges are used to monitor and assess the performance of submarines, torpedoes, ships and targets conducting tests and exercises on weapon system performance. The ability to track these platforms is largely based on the performance of the transducers used in the tracking systems. Current state-of-the-art piezoelectric ceramic (PZT) transducers have performance limitations; there ...

A major barrier to the widespread adoption of wireless sensors for structural health monitoring is the requirement to power the network of wireless nodes. Batteries have a limited lifespan, adding significant size, weight, and costs to the wireless sensor network,and may represent a long term environmental problem. Battery maintenance can be eliminated by harvesting energy from the environment. Fo ...

Structural monitoring of Navy aircraft is of critical importance as the fleet ages. One critical area includes the control surfaces, which are subject to intense, dynamic buffet loading which can lead to structural cracking. The highly transient nature of buffet loading makes it difficult to measure using conventional sensors. We propose to solve this problem by combining a network of time-synchro ...

The primary objective of the proposed Phase II study will be to develop fast and accurate computational tools for the design of two-phase cooling hardware for high-flux defense electronics. These tools will be developed for systems utilizing three different cooling schemes: micro-channel cooling, spray cooling and jet-impingement cooling. The proposed tools will incorporate physics-based models ...

The proposed Phase I study will lay the foundation for development of a new high-performance cooling system for the Joint Tactical Radio System (JTRS) Ground Mobile Radio (GMR). A proof-of-concept study will be undertaken to show how the cooling system will meet the heat dissipation requirements and space constraints, and endure the operating environment of GMR. The study will determine the requir ...

The primary objective of the proposed work is to develop an unmanned underwater vehicle (UUV) power system architecture that is simultaneously scalable to multiple UUV sizes, light weight, affordable, and adaptable. This will be accomplished through the development of “smart” power units (SPU’s) that can be readily interconnected to provide distributed and coordinated power management for t ...

The proposed project will create an innovative Trawl Resistant Tether System to protect vertically suspended, bottom-tethered types of ocean bottom sensor installations from the vulnerabilities of trawl rig damage. It uses innovative geometry and fabrication techniques that do not impact the sensor performance in any way. The proposed system addresses two specific vulnerabilities: damage to the to ...