Award Data

There is a need to achieve 10^-9 reliability for actuators for critical aerospace applications and this precludes single point failure for all but the simplest and most reliable electrical and mechanical components. LC Drives proposes a method of constructing a high reliability linear actuator for critical aerospace applications that is designed such that jams caused by conventional electrical a ...

Fiber reinforced composites are attractive for several light-weight defense and aerospace applications. However, their inherent anisotropy and complex failure mechanisms limit their use in high-performance structures or components. In order to accurately predict the damage behavior and durability of composite parts exposed to extreme conditions, there is a need to develop new analysis tools that c ...

In this Phase II SBIR project, Daniel H. Wagner Associates (DHWA), with NASAs Jet Propulsion Laboratory (JPL), MARK Resources, Inc. (MRI), and Spatial Integrated Systems (SIS) as our subcontractors, will develop a prototype lightweight, low-cost Wave Detection, Prediction, and Reaction System (WDPRS), and then test and evaluate its performance at-sea. The proposed WDPRS is designed to reduce the h ...

The proposed effort will seek to further design and develop vacuum brazed high density folded-fin modular heat exchangers. The scalability of these heat exchangers would provide a means for fabricating large area high performance cold plates by joining via friction stir welding. The advantages of this approach would be an increase in system performance, reliability and efficiency. From a manufactu ...

Phase I of the STTR program will be a collaborative research effort between high fidelity computational simulations and experimental testing. The primary aim of this initiative will be to measure laser beam distortion, using aero-optic metrics, due to flowfield turbulence. The results from the computational simulations and experimental test will be compared to ensure agreement between the two. Ini ...

Corrosive environments together with cyclic loading can lead to the formation of localized corrosion pits and corrosion fatigue cracks, which can significantly deteriorate the structural integrity of aircraft components. The exact nature of corrosion fatigue damage is dependent on the competing multi-scale processes resulting from complex interactions between the structural material, its environme ...

It is critical to the safe use of ceramic matrix composite components that information on the fracture toughness of these materials be available, in order to allow an assessment of the likelihood for crack growth. Although Military Standards and American Society for Testing and Materials both serve as resources for room and elevated temperature test methods, there are no standards to obtain the in ...

Rechargeable batteries self discharge while in storage, and when allowed to remain at an extremely low state of charge for a long period of time, can be damaged permanently and then must be discarded. The USMC finds it far too costly and impractical to perform manual maintenance recharges every 3 to 6 months on the millions of rechargeable batteries in its inventory. In response to their requireme ...

Among the factors that inhibit the use of composite materials in both general aviation aircraft and DoD platforms are the high cost of engineering and the cost of certification. Unless manufacturers can control risk when introducing new materials and pro

We propose to build a comprehensive system architecture which will provide a mechanism for researchers/educators/trainers, to extend their methods and designs from the confines of the research lab environment to the wide-scale and global applied use in the field or at home. We will expand our Phase I work (design, implementation, and evaluation of a mobile computing prototype brain fitness trainin ...