Award Data

ABSTRACT: Improvements such as increased array size and better non-uniformity correction have been made to resistive emitter arrays fabricated on silicon (Si). There exist additonal wavelengths of interest whose emitter devices require fabrication in other materials, such as gallium arsenide (GaAs). For both Si and GaAs substrate materials, attempts to"tile"small arrays into larger ones for reaso ...

ABSTRACT: Desired tactical requirements for unmanned aerial systems (UASs) exceed current capabilities for performance, reliability, maintainability, cost and supportability. Mission requirements such as extended endurance, increased power for auxiliary/sensor systems, and low altitude, low speed maneuverability are becoming paramount, specifically, in the 10,000 lb class of vehicles. These desi ...

ABSTRACT: Requirements for enhanced cruise efficiency and reduced noise for future Air Force mobility transports can be met using advanced propeller and propfan technology. However, identifying designs that balance performance and acoustics requirements for multiple flight conditions poses a serious analytical challenge, given structural constraints, weight considerations, and drivetrain interac ...

ABSTRACT: It has been a challenge to realize the benefits of energetic metal nanoparticles due to the severe oxidation that occurs on the particle surface, which leads to significantly diminished performance during combustion. We propose to improve the energetic properties and air-stability of aluminum nanoparticles by encapsulating them with a relatively noble metal that can undergo an exothermi ...

ABSTRACT: As the size, cost, and power consumption of digital signal processing platforms continue to drop and their performance improves, incorporating digital beam-former (DBF) designs into future SATCOM satellite payloads has become an increasingly attractive option. The advantages offered by digital beam-forming stem from the ability to create composite antenna patterns that vary with both s ...

ABSTRACT: We propose to demonstrate the benefits of a self-healing coating (SHC) system (comprised of MIL-PRF-85285 compliant self-healing top coat; MIL-PRF-23377 Class N primer; chromate-free pretreatment) on repaired and restored aluminum. Innovations are proposed for a self-healing polyurethane-based top coat that satisfies the functional performance requirements for the present application. T ...

ABSTRACT: The Air Force is seeking a compact, high torque, rotary EMA technology capable of controlling flight control surfaces directly at the hinge line in the next generation of thin-wing aircraft. Proposed for this application is an advanced EMA technology based on an axial flux, permanent-magnet machine structure. The unique shape of this device enables efficient integration into the wing ...

Training in the symptoms of Spatial Disorientation (SD) has shown to be valuable in aiding pilots to recognize its onset and provide a means for mitigating its effects, but such demonstrations have traditionally been associated with specialized equipment and devices. Since the vast majority of pilots for the commercial aviation jet fleet are trained (or recertified) on 6-degree-of-freedom (DOF) h ...

In the proposed effort, we will leverage this extensive experience and capabilities to realize a frequency agile mmW radiometer that can cover the range of DC-110 GHz and can be scaled to DC-200 GHz under Phase II. Ours is a photonic system that multiplies and up-coverts a low-frequency reference signal onto an optical carrier (laser) using EO modulation, then uses the modulation sidebands to inj ...

The movement to more-electric architectures during the past decade in military and commercial airborne systems continues to increase the complexity of designing and specifying the electrical power system. The addition of numerous high-power electric loads has drastically altered the dynamics of power flow on the electrical bus. Many of these loads often exhibit peak-to-average power ratios in ex ...