Award Data

The proposed research combines an innovative eigenvector method with other electromagnetic techniques to produce a hybrid approach towards solving the EM coupling to satellite cavity problem. The physical structure is divided into an exterior region and one or more interior regions. The exterior region is modeled with method of moments (MOM) and or hybrids of MOM with the uniform theory of diffr ...

The major hindrance in the way of integration of a laser source and an external modulator in ferroelectrics has for long been the lack of efficient waveguide lasers and amplifers suitable for integration in these materials. However, with the recent resurgence of interest in rare-earth doped, waveguide lasers in LiNbO3 and in view of the promising results already achieved, the on-chip integration ...

Cryogenic cooling objectives for space applications require reduced size, weight, and input power; longer life and increased reliability; and increased net cooling load. The Reverse-Brayton expander cycle has the potential to meet all these objectives. Previous efforts to implement this cycle for long-life cryocoolers utilized "room temperature" tilting pad bearings. The warm bearings provided ...

Under the proposed research an Interface-Driven Design Manager (IDM) for CAD packages will be developed to greatly reduce the design cycle time for aircraft structures. The IDM represents a first attempt to fully integrate powerful new interface element and design management technologies into the CAD environment. These emerging technologiies have the potential for making multidisciplinary design ...

Recent efforts in the target vulnerability community (fixed ground targets, mobile ground targets, and aircraft) have focused on enhancing the blast and fragmentation modeling from weapon detonations. This includes modeling propagation of the detonation effects from the weapon through their interaction with the target geometry, to the development of loads on and response of the target structure. ...

The objective of this work is to develop analytical techniques to characterize wear and gouging phenomena of slippers at speeds up to hypersonic and demonstrate means to evaluate or reduce slipper wear/gouging. Specifically, we will develop analytical techniques that can be used to predict slipper wear patterns and gouging phenomena throughout the sled velocity regime to Mach 10. This will inclu ...

The U.S. Air Force has identified a need to develop innovative inertial sensor configurations and algorithms that utilize multiple low-cost, low-performance sensors to produce an inexpensive inertial measurement unit (IMU) with relatively high performance. A multiple-sensor IMU uses several low-performance sensors per axis and blends their outputs to attain an accuracy comparable to a higher-perf ...

Proposed research involves the development of a system specification for a calibrated, infrared, focal plane array imager. A thorough review of LWIR and MWIR sensor manufacturing capability within the US wil be conducted. In addition, candidate companies will be selected to pursue more in-depth performance issues during on-site visits. Analysis of individual IR systems will be included along wi ...

Smart IR weapons must have excellent IR sensor characteristics that exploit as much information as possible to ensure guidance accuracy with low false alarms. Quantum Well Infrared Photoconductors (QWIPs) offer an opportunity to explore long wavelength polarization characteristics. A great deal of attention has been directed toward creating 2D gratings that produce large coupling coefficient. O ...

The ever increasing complexity of distributed simulation environments has caused the level of effort required to manage and control a training exercise to become excessive. Exercise setup times and the number of human operators/instructors, needed to run an exercise, have reduced the number of useful training hours and increased the cost to train. To combat this situation, a more efficient means ...