Award Data

Jet engine titanium compressor airfoils are susceptible to erosion damage ranging from a few percent loss in blade chord length in fighter engines to more significant erosion exhibited by helicopter engines operating in desert environments. The application of titanium nitride coatings on individual compressor airfoils have provided significant operational, maintenance and safety benefits for helic ...

The objective of this project is to develop a novel expander that can increase the efficiency of cryocoolers for IR sensors at very low temperatures and in remote cooling and across gimbal applications. Miniature Thermoacoustic Expanders (MTAE) that employ high energy acoustic waves generated with no moving parts at the cold expander to produce efficient cooling over a wide range of temperatures a ...

The proposed Phase II effort will complete the development, design, fabrication and hot gas evaluation of unitary, net-shape braided throttleable divert and attitude control system (TDACS) components. The program will demonstrate a low cost, thermally-stable, triaxially braided C-SiC integrated throat / plenum / exit cone structure for advanced DACS application. This structure will be designed t ...

Long-duration wide-area surveillance missions increasingly are space-based. MEO orbits offer space-based radar systems more time on station, but require very large array apertures on the order of 100m in diameter. Achieving larger apertures with smaller, lighter launch packages and stable on-orbit pointing is a challenge that E-Textiles promises to meet. Textile processes can be used to achieve a ...

The overall objective of this SBIR proposal is the development of a software-based tool or database known as the Marine Assessment, Decision, and Planning Tool (MADPT) for Protected Species. Knowledge about federally protected species such as fishes, marine mammals, sea turtles, and invertebrates such as corals or abalone is vital for scheduling at-sea activities so that potential impacts to these ...

Existing OAML-approved active acoustic models are under continuous evolution to take advantage of new theoretical and numerical developments and more powerful computational resources. These models are supported by OAML-approved environmental databases that are also constantly updated to accommodate the newly developed models and recent measurements throughout the world. The databases that describe ...

We propose the evaluation and measurement of single crystal materials to support performance prediction of cylindrical ring sonar transducers and bar transducers for imaging sonar. The project also encompasses the construction and evaluation of exemplar devices.

We propose the development of a detailed Cylindrical Transducers User Toolkit for the design of underwater acoustic transducers and sonar systems employing cylindrical transducers and relaxor piezoelectric single crystals. The User Toolkit will providing the systems designers with a simple way to project the acoustic performance for the class of cylindrical transducers and explore the design space ...

SRD will develop a miniaturized atmospheric gas sensor array and design a gas analyzer (sensor analyzer module, SAM) capable of accurately detecting and autonomously monitoring critical atmospheric gases in enclosed spaces. In this Phase I effort, SRD will use its current, existing technology (miniaturized sensor platform, proprietary SMO sensor coatings and advanced signal processing algorithms) ...

We study the problem of sensor calibration as it might be applied to a tactical UAV system where operability and robustness are paramount. A large number of airframes and diversity of sensor types argues for an approach that is low cost (exploiting calibration targets in the field) and applicable for various sensors. The study considers various approaches to sensor calibration and measurements e ...