Abstract:Thermal and environmental control systems for future exploration spacecraft must meet challenging requirements for efficient operation and conservation of resources. Regenerative CO2 removal systems are attractive for these missions because they do not use consumable CO2 absorbers. However, these… more
Abstract:Interfaces on existing military chemical/biological protection garments are not designed to fully eliminate air gaps at fabric folds, fabric surfaces, or hook-and-loop closures, and thus do not provide a hermetic barrier against exposure. Creare proposes to develop a hermetic garment closure system… more
Abstract:Combustion stability is critical to the performance of augmented military jet engines. Instabilities such as screech can result in reduced augmentor performance, increased sustainment requirements, or even catastrophic failure. Screech remains a difficult problem to predict and mitigate, and its… more
Abstract:Safe efficient operations on the flight line or on the deck of an aircraft carrier require effective communications between members of the crew and between members of the crew and the aircraft pilot. Maintainers working on the flight deck or flight line are often subject to extremely loud noise… more
Abstract:The need to isolate mechanical shock and vibrations between shipboard machinery and the ship hull requires the use of flexible hose assemblies (FHAs) and resilient mounting structures. Resilient mounting structures and FHAs, in particular, are ubiquitous on all U.S. Navy ships, serving as a… more
Abstract:Cryogenic electronics have the potential to revolutionize digital communications from Unmanned Aerial Vehicles (UAVs), but must operate at cryogenic temperatures. Commercial cryocoolers are large and inefficient and are unable to meet size, weight, and power requirements for UAVs. Our approach and… more
Abstract:Aircraft carrier deck operations require a high degree of coordination to maximize efficiency and safety. The current operational paradigms have evolved over many decades of experience. However, the anticipated introduction of unmanned aerial vehicles (UAVs) and other automated systems are likely to… more
Abstract:The Army uses Unattended Ground Sensors (UGS) for the location and tracking of enemy soldiers and vehicles. The sensors can often determine range and relative bearing to the signal source, but without knowing its own orientation, these data cannot be converted to the geo location and ground track… more
Abstract:Measurement surveys of full-scale ship airwakes are needed to validate computational fluid dynamics (CFD) models of these wakes. Airwake computations guide the design of ship superstructures, improve the fidelity of flight simulators, and save time and reduce risk during flight tests to define… more
Abstract:Thermophotovoltaic (TPV) power systems offer an attractive approach for compact, simple, and reliable energy conversion needed in applications such as portable power systems and unmanned aerial vehicles. A key challenge with TPV energy systems is achieving a high-energy conversion efficiency, and… more
Abstract:Generator and motor systems with high power density are needed as watercraft, aircraft, and land vehicles evolve toward more electric designs. In response, we propose to develop a system that operates at extremely high speed to provide ultra-high power density. The resulting system will be compact,… more
Abstract:ABSTRACT: Accurate measurement of fastener profile relative to the aircraft skin is critical to ensure that aircraft meet operation specifications and to identify areas that require rework to meet tight manufacturing tolerances. Current measurement methods rely on mechanical dial indicators that… more
Abstract:ABSTRACT: Hybrid technologies and adaptive resource management can significantly enhance the capability and range of next-generation aircraft. To implement this strategy, we propose to develop a control system to configure the Adaptive Power and Thermal Management System (APTMS) based on the… more
Abstract:ABSTRACT: Aircraft power system disturbances cause significant power quality issues such as increased losses, component degradation, and undesirable interaction between the source and loads. Transient disturbances have historically been related to nonlinearities such as uncontrolled diode… more
Abstract:ABSTRACT: Next-generation space-based focal plane array infrared detectors require efficient cooling at low temperatures. We propose to develop an innovative cryocooler with no mechanical moving parts that can provide cooling at temperatures below 123 K while rejecting heat at temperatures higher… more
Abstract:ABSTRACT: Cubesats and microsats utilizing electro-optical payloads will require cryogenic refrigeration for cooling the infrared Focal Plane Arrays. The cryocooler technical requirements for performance, size, mass, and power densitycoupled with the programmatic requirements for minimal cost and… more
Abstract:Hypoxia is a dangerous condition for naval aviators that impacts critical thinking, resulting in a lack of awareness that prevents aircrew from taking appropriate corrective actions. Practical hypoxia training allows pilots to experience the effects of hypoxia so that the symptoms are more readily… more
Abstract:Modern jet engine turbine blades are single-crystal superalloy structures with excellent resistance to high-temperature creep, allowing tight tolerances to be maintained over the blade"s life. However, turbine blades have complicated features that can promote the growth of discrete crystal… more
Abstract:Aircraft carriers are the backbone of the U.S. Navy"s fleet, which operates around the globe, with the sole purpose of launching and recovering aircraft to support U.S. military and peacekeeping interests. The ability to quickly and safely launch aircraft can become a key limitation for an… more
Abstract:ABSTRACT: Titanium aerospace components are notoriously expensive and difficult to machine at high speeds, driving up per-part costs and limiting application of this material where it could be of substantial benefit to the warfighter. Creare"s innovative Cryogenic Machining approach addresses… more
Abstract:ABSTRACT: CubeSats provide a new, low-cost platform for space weather missions. They enable new mission paradigms, such as the ability to perform multiple measurements of the same physical phenomena globally from several satellites, in contrast to high-accuracy measurements of multiple phenomena… more
Abstract:ABSTRACT: Next-generation thermal management systems in advanced aircraft must utilize all available heat sinks including fuel, ram air, and third stream air flows to effectively manage aircraft thermal loads. To this end, we propose to develop a compact, highly integrated condenser to enhance… more
Abstract:Increased mission endurance is a critical requirement for many unmanned air vehicles, leading to a need for new propulsion technology. This project aims to enable increased mission endurance by developing advanced recuperators that will reduce fuel consumption and significantly expand the mission… more
Abstract:Subsequent Phase II Proposal, extension of Phase II Contract FA8650-13-C-5185. Accurate measurement of fastener flushness during assembly is critical to ensure that military aircraft meet operational specifications. Current measurement methods rely on manual gauges that do not provide sufficient… more
Abstract:Augmentor stability is critical to the operational performance of military aircraft that rely on gas turbine propulsion. Compared to early augmentor designs, the distance between the point of fuel injection and the flameholder has become progressively shorter in modern augmentors. These so called… more
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