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The objective of the proposed Phase-I effort by Spectral Energies LLC is to design and develop a fiber-coupled hyperspectral LWIR thermal imaging sensor suite for temperature measurements in practical combustors. The proposed sensor suite will be capable of performing spectrally resolved imaging to achieve accurate temperature measurements in practical gas-turbine engines while resolving optical i ...

Computational design is encountering barriers due to chaotic dynamics. The characteristic unpredictability, aperiodicity, and sensitivity to initial conditions in chaotic dynamics requires computationally costly time-dependent analysis. Computationally costly analysis precludes sampling-based optimization, indicating that chaotic systems would significantly benefit from gradient-based optimization ...

The automotive and aerospace industries use topology optimization to minimize structural weight while satisfying functional constraints. However, the industry-standard fictitious material or density approach has been less effective when applied to physics beyond simple structural mechanics. Known issues include: failed numerical convergence or so-called gray material in computed optimal designs, n ...

High Velocity Penetrator Weapons experience severe stress in terms of high frequency vibration and shock during launch, flight, and on impact. The extreme conditions have significant impact on the survivability of the weapon due to damage of the energetic material and fuze compartment. Molecular dynamics is often used to understand the effect of external shock on the material. However, molecular ...

The overall goal of the proposed research program is to design a ruggedized imaging system capable of visualization and analysis of the particle field and product gases in a multiphase blast. This will be accomplished by combining kHz-MHz-rate burst-mode laser technology with tomographic particle image velocimetry (PIV) and new nonlinear particle tracking methods to resolve dense particle fields. ...

As both the response speed and sensitivity of thermal imagers have improved significantly over recent years, new IRSP systems are needed to provide greater dynamic range and faster response speeds. Addressing these issues, as well as producing a cost effective and modular IRSP system will be critical for providing quality scene projection for the next generation of infrared imagers. To address the ...

Truventic proposes a novel MEMS-based plasmonic infrared scene projector to support hardware-in-the-loop testing of missile seekers, forward looking IR cameras (FLIR), counter measure simulation and tracking systems. The approach avoids known limitations of resistive arrays and provides high dynamic range, unprecedented high apparent temperature, high modulation rates, high pixel to pixel contrast ...

Cost-effective application of advanced commercial electronics technologies in DoD space systems requires early development of radiation-hardened-by-design (RHBD) techniques, and use of simulations is critical to the efficiency of this process. CFDRC has developed an integrated, mixed-mode simulation approach allowing their NanoTCAD device physics simulator to interface with commercial circuit simu ...

The Defense Health Program seeks to improve the lives of service members suffering below knee amputations through the development of a non-powered lower extremity prosthesis designed to restore range of motion and power generation to that of an uninjured anatomical ankle. Current passive systems are still in early stages of development and typically only address one aspect of what the Defense Heal ...

Kyma Technologies, the leading domestic supplier of crystalline III-N substrate materials, is teamed with leading AlGaN materials & device experts at Sandia National Laboratory, to develop high-quality AlGaN templates in Phase I and free-standing AlGaN substrates in Phase II. Understanding that the commercialization potential of AlGaN templates and substrates requires a cost-effective and diameter ...