Award Data

Water expansion during freeze-thaw cycles can cause deterioration in concrete, leading to scaling, cracking, and crumbling over a period of years. Resistance to this damage is achieved with a system of voids formed by adding surfactants to the fresh concrete to stabilize air bubbles naturally entrained during mixing. The volume fraction, size, and spacing of these voids are critical. It is importa ...

Broken rails are a common cause of mainline derailments and a particular concern given the increasing use of our rail system for passenger traffic and petroleum products. The progressive nature of the defects provides an opportunity for early detection of cracks before they become significant enough to cause a derailment. Unfortunately, current inspection technology does not allow these inspection ...

The Next Generation Equipment Committee (NGEC) developed a standard for specifying the use of an Ethernet based digital train line (DTL) network to replace the COMM line for passenger trains. These specifications are PRIIA 305‐919 Digital Train Line Hardware and PRIIA 305‐920 Digital Train Line Software. The intent Is to eventually allow for the improvement of passenger train control. DTL spec ...

Use of motorcycles helmets significantly reduces the risk of fatality or serious brain injury to riders in the event of a crash, but riders often do not wear helmets in warm weather because of thermal discomfort. We propose to develop an innovative ventilation and cooling system that will maintain a cool, dry environment inside the helmet while also meeting applicable safety standards. The key the ...

A road wheel suspension incorporating a semi-active damper and fast load leveling spring system will be developed for the Expeditionary Fighting Vehicle (EFV). The system will be designed as a replacement for the currently fielded semi-active suspension system in the same foot print, either in early production units or as a retrofit package for incorporation later in the development cycle. A sus ...

A semi-active suspension upgrade kit for the SOCOM up-armored HMWWV will be developed that will achieve comparable performance for the entire weight range of a GMV: 8300lbs curb weight to 14,500lbs combat loaded. The baseline performance requirement is equivalent handling, stability and ride quality as an M1113 HMMWV at rated GVW. A dynamic model that incorporates the semi-active suspension into ...

We propose to determine what outputs from the SSAJ measurement system would be suitable for traffic control applications, to determine what the "real time" needs and accuracies are for measurements of signature, speed, acceleration, and jerk (SSAJ), to integrate the output of our IST-222 Standard Signature Output Card with and Advanced Transportation Contorller (ATC) and finally to demonstrate pro ...

Military breath-hold divers are at risk for shallow water blackout. We plan to develop a Diver Monitoring System that will warn the diver when he is a risk of losing consciousness. The system will monitor the diver's blood oxygen level and dive profile so that the warning provides the diver with sufficient time to ascend to the surface. The technology developed under this program will not only ...

N/A

This project will develop fully functional prototypes of a battery-free portable power source that can be deployed in remote, unattended locations. The power source will provide up to five watt-hours per day under extreme weather conditions for a minimum of four years without maintenance. The design relies on solar energy, and uses ultracapacitors for energy storage. A modular interconnect ...