Award Data

The noise from turbulent, hot, supersonic jets during take-off and landing, as well as high-Mach cruise at altitude, dominates noise emanating from other powerplant components (e.g., fan, combustor). This intense noise has significant safety implications for launch personnel as well an environmental impact in the form of noise pollution around military installations. The proposed Phase II work wil ...

Our Fused-Realities-Assessments-Modules(FRAM) enables innovative new levels and types of automated quantification strategies for combining human and system performance in real-time for fused performance monitoring and after-action-review purposes. FRAM accomplishes this by fusing output of normative models of behaviors (cognitive/procedural/team), human states (physiological/affective), system sta ...

The proposed work seeks to clearly demonstrate the advantage of the multiple-input multiple-output (MIMO) radar architecture over a similar single-input multiple-output (SIMO) or phased array system; the benefit of applying data-adaptive signal processing techniques in favor of their data-independent counterparts; and the utility of transmitting advanced probing waveforms as opposed to conventiona ...

TBD

In recent years, the need for highly reliable, durable and non-intrusive systems for monitoring the health condition of naval structures becomes more and more recognized. Of particular importance is the condition based maintenance of Navy rotating machinery (motors, generators, pumps, gear systems, etc.). Such Structural Health Monitoring (SHM) systems should be able to detect failures in their ea ...

A high-voltage, high-capacity, inexpensive cathode material for lithium-ion batteries (LIBs) is proposed. The cathode material employs carbon nanotubes and additional nanostructures to support efficient transport of Li ions. The resulting LIBs will support high transient and pulsed loads while offering enhanced safety and lifecycle performance. Proof-of-concept LIB cells were demonstrated in Phase ...

A triple pulse PIV concept and a third order correlation method was developed and demonstrated improvements in accuracy and spatial resolution of the velocity and acceleration measurements in an impinging jet flow field. A low-cost system based on overdriven LEDs, uniquely designed single frame camera for capturing the images, efficient scattering techniques, and innovative algorithms were explore ...

An integrated program of fundamental research, software development and technology transition to Navy target platforms for computationally efficient yet accurate prediction of turbulence interactions involving disparate length scales has been proposed and is underway. The fundamental research will be conducted at Purdue University and provide a critical modeling component for turbulence resolving ...

This STTR will focus on demonstrating methods to integrate additive manufacturing (AM) structure, processing, and property-geometry modeling methods that will facilitate the qualification and certification of AM-fabricated 4340 steel alloy parts and enable their rapid deployment. During the Phase I feasibility demonstrations the contractor and Research Institute (RI) defined and developed a concep ...

The research deliverable of this project will be a prototype hardware-software system for layer-by-layer nondestructive inspection for near-real time determination of spatial distribution of the probability of material defects as a metallic part is being fabricated using the selective laser melting (SLM) process. The hardware will comprise an off-the-shelf laser scanner (profilometer) and precisio ...