Award Data

Spectral Energies, LLC and The Ohio State University proposes a comprehensive research effort to advance the state-of-the-art in seamless computation of the interior of a nozzle in high performance turbine exhaust and downstream plume aerodynamics. The focus is on higher-fidelity methods using robust, efficient and scalable high-order accurate implicit schemes couched in a Large-Eddy Simulation (L ...

Catapult shuttle wheel bearing loading is a function of the aircraft take-off weight and the acceleration of the catapult. The resultant load on the bearings of the existing catapult has significantly changed from the time the subject bearings were selected in 1980. If the projected aircraft take-off weight is 100,000 lbs., the bearing life will be reduced by approximately 94%. The Phase I objecti ...

As aircraft technology continues to evolve, there becomes a need for advanced takeoff systems for aircraft carriers. Increases in aircraft weight and takeoff speed require takeoff systems with reliable components to withstand the increase in force put on the system by the advanced aircraft. In this project, Powdermet will target the improvement of wheel bearings for both steam catapult shuttles an ...

The goal of this Phase I research is to demonstrate a scaleable pulse power modulator circuit with a resistive load, meeting scaleable voltage, current and peak power requirements for high power radio frequency (HPRF) source. Gallium Arsenide (GaAs) based high gain Photoconductive Semiconductor Switches (PCSS) will be used for this demonstration. The Phase I demonstration will be limited to 10-100 ...

There exists a need to develop a control actuation system to impart course correction for spinning rounds. Orbital Research proposes to design and develop a novel low-power scalable control actuation system capable of imparting persistent course correction for spinning, gun-fired munitions. The novel Miniature Control Actuation System (MCAS) will be based on active flow control concepts. During th ...

Double-base propellants are widely used in Navy aircraft ejection seat systems, partially because of their ability to be tailored to exhibit pronounced plateau burning. Due to degradation problems inherent with double-base propellants, it would be very beneficial to develop composite propellants with this plateau burning capability. Composite propellants typically do not chemically degrade but als ...

ABSTRACT: Modern gas-turbine engines designs for the next-generation warfighter need to reduce exhaust gas temperatures to reduce effective thermal footprint thereby improving the mission capability. In such situations, high-altitude engine operation is often limited by the overall combustion efficiency, lean flame blow out (LBO) limit, and combustion instabilities that results in narrower opera ...

ABSTRACT: Current methods for restoration of corrosion affected aircraft components in the Air Logistic Complex are in the need of process and equipment improvement. This proposal offers to perform research to identify and characterize aircraft components/areas requiring dimensional restoration and to identify restoration requirements. It also offers to demonstrate the feasibility of improved te ...

Most NDT applications require some gauge of image quality prior to evaluation of the image for defects. In order to assess and quantify the image quality of a radiograph, a numerical value is assigned based on accepted imaging criteria. Film radiographs are typically characterized by the film density and by the visual detection by the inspector of an image artifact intentionally placed on the te ...

ABSTRACT: Hill AFB paint stripping operations for aircraft landing gear components is currently achieved by soaking landing gear components in a methylene chloride-based (MeCl) solution for 30 minutes, followed by plastic media blasting to remove residual paint. Their current operations use over 16,000 gallons of MeCl-based stripper each year. OSHA classifies MeCl as a potential carcinogen and ...