Award Data

In response to NASA’s topic T12.02 of “Extensible Modeling of Metallurgical Additive Manufacturing Processes”, Sentient proposes to incorporate its DigitalClone technique to develop a multiscale and multiphysics computational modeling suite to predict comprehensive outcomes from AM building processes, including geometrical accuracy, and resulting microstructure and defects. Figure 1 shows th ...

This proposal includes, for the first time, integrated theoretical models and experimental investigations to simulate and demonstrate femtosecond-laser-fabricated waveguides in crystalline dielectric materials. The numerical models will predict refractive-index changes potentially induced by self-focusing, heat accumulation, thermal stress, plasma formation and relaxation, and ablation. The influe ...

Modern aircraft systems have slowly evolved towards integrated modular computing architectures that are linked to multiple external networks. These developments have introduced cyber-attack vulnerabilities which did not exist in older-generation avionics systems. To counter the emerging threats and increased vulnerabilities, an ability to comprehensively and systematically assess aviation cyberse ...

Current methods for obtaining pressure profiles on airfoils require complex pressure-scanner setups, which are expensive, very time-consuming, have multiple points of potential failure, and physically change the structure/loading on a test airfoil, especially in the case of smaller airfoils. This severely reduces the frequency at which such testing can be done, and the number of airfoils on which ...

Singularity - Intelligence Amplified, LLC proposes to develop a resilience toolkit enabling the planning, assessment, implementation, and utilization of resilience for future manned spaceflight and autonomous systems. The Strategic Technologies for Autonomy & Resilience Tools (START) project will demonstrate the associated technologies the company envisions integrating as a toolkit within a modula ...

A new generation of spacesuits is needed to support EVAs for future surface exploration missions. These new suits will require decreased mass and volume, improved functionality, and excellent reliability. More power is required than today’s suit can provide. The battery pack will be the main source of power and weight and needs to provide an energy source for life-support functions, communicatio ...

Final Frontier Design (FFD) proposes a Low Cost Personal Life Support System (PLSS) for a space suit, utilizing commercial, off-the-shelf (COTS) items wherever possible. The closed loop, Low Cost PLSS system proposed includes all the required systems for a generic EVA setup, and can be packaged effectively for outer space based applications. The use of COTS items with a minimum amount of original ...

The proposed research is directed at the development of new optical interference coatings having low film stress and high reflectance in the X-ray band from 0.1 to 10 keV, which are critically needed for the construction of lightweight, nested X-ray telescopes having high collecting area and sub-arcsecond resolution for Lynx, the high-energy flagship mission under consideration for the 2020 Astrop ...

Availability of high-resolution big data, specifically from Sentinel-1A/B, Sentinel-2A/B, and Landsat-8, presents unprecedented opportunities for a wide range of preoperational and operational applications in the environmental and agricultural domains which will take advantage of these high spatial and temporal resolution datasets as well as advances in multi-source data fusion techniques. One suc ...

NASA has identified freeform optics as an integral part of their future optical systems. Reducing the cost of freeforms will be crucial in accelerating the integration of freeforms into cost-sensitive NASA optical systems. One method to reduce cost is to reduce the metrology time needed to characterize the freeforms. This is especially true when measuring the mid-spatial frequency errors induced ...