Award Data

The widespread use of communication devices and radar systems has made our society increasingly vulnerable to disruptive, high-power, short pulse electromagnetic interference (EMI) and high power microwaves (HPM). Significant advances in devices that produce these high-power, short pulses have been made in the US and abroad in the past few decades. As a result, the need for devices that can prot ...

This project is the development of a single crystal underwater acoustic modem transducer for Unmanned Underwater Vehicles (UUV) which is compact in size, operates at low to moderately low center frequencies, in a broad band frequency range to accommodate state-of-the-art binary, FSK and spread spectrum signaling schemes that promote covertness. The device exploits the high coupling coefficient an ...

Power supply systems are – compared to other electronic systems – highly susceptible to failure due to the high voltage and current conditions they routinely operate in. JSF operational reliability could be greatly enhanced by ensuring power supply performance in fielded systems. A power supply system is made up of various devices, all of which are interconnected with solder welds. During Phas ...

The proceedings from the 16 August 1999 HCF Probabilistics Steering Committee meeting indicate that material behavior is a leading root cause of HCF problems in blades, vanes, and seals. A conventionally used component lifing practice is to conduct a Goodman type analysis to estimate the resistance to HCF failure. However the true resistance of a component to HCF loading is dependent on the steady ...

Reliance on modern electronic network technology comes with susceptibility to upset or damage from high energy Electromagnetic Pulses. The U.S. Navy plans to deploy a family of Multi-Mission Surface Combatants outfitted with local area network total ship monitoring systems utilizing the evolving family of IEEE 1451 standards. Network standards will facilitate manpower reduction through automation, ...

Improved head and hearing protection is required for aircraft maintainers working on a carrier flight deck during launch and recovery operations. The current head protection is inadequate in many aspects including impact protection, hearing protection, cleaning, comfort, and compatibility with night vision goggles (NVGs) and with chemical, biological, and radiological (CBR) equipment. Creare pro ...

Underwater acoustic modeling plays an essential role in the design, development, test, and operation of sonar systems. Active acoustic clutter can increase the sonar false alert rate or equivalently decrease the probability of detection/classification, and is a key issue in the development and utility of active sonar systems. The ability to predict reverberation and clutter is inseparably tied to ...

Warwick's expertise with high-performance, protective textiles has led to the development of innovative solutions, including new body armor systems for multiple threats and the protective crash bag material used to land NASA's Spirit and Opportunity Mars rovers. We propose to create a lightweight, flexible, multi-layered system that will effectively mitigate the powerful forces of tension and com ...

Electronic digital circuit boards are composites of organic or inorganic materials with external and internal wiring designed to electrically interconnect and mechanically support all of the components and dissipate heat. Digital electronic circuit failure is ultimately a material failure at either the board, interconnect or component level. VEXTEC proposes to extend JSF prognosis to digital elect ...

Thermal loads from electronics and advanced weapons systems have increased the cooling required from environmental control systems (ECS) in state of the art fighter aircraft. Future aircraft will require advanced heat exchanger technology to minimize the size and weight of the ECS. Microchannels offer improved heat transfer/pressure drop characteristics compared to plate fin heat exchangers, but ...