Award Data

Multidisciplinary design, analysis, and optimization (MDAO) is a critical enabling technology for the design of complex systems such as naval aircraft. Using high-performance computing and modern analysis codes, many aspects of naval aircraft, and other, systems can be accurately modeled. However, the generation of the meshes analysis codes need as input is overly time consuming, while it takes su ...

In response to the request for proposal (RFP) STTR topic N23A-T001, describes mesh generation and adaptivity as “significant bottlenecks” for current high-fidelity CFD. While methods for producing high-quality meshes exist, they require nontrivial and frequent human intervention. Moreover, these techniques result in a disconnect between the parametric model and the output mesh representation, ...

Advancements in optical transport and signal processing for digital and Microwave Photonics (MWP) technology have enabled higher bandwidth, throughput, Dynamic Range (DR), and communication link budgets. Optical transport eliminates heavy shielded twisted pair or coaxial cables, reducing Size, Weight, and Power (SWaP) and provides Electromagnetic Interference (EMI) immunity compared to traditional ...

Ingestion of silicate particles into aircraft gas turbine (GT) engines remains a serious hazard to both commercial and military aircraft. Helicopters and low-flying fixed-wing aircraft in desert environments are exposed to airborne sand particulate. Both commercial and military aircraft can be exposed to runway dust as well as high-altitude volcanic ash. These silicate particulates present a hazar ...

The effect of particle ingestion in gas turbine engines has become a significant problem in recent decades. Commercial and military aircraft and helicopter engines currently operate over various terrains with particles. Vehicles near the ocean, for example, typically come across sea spray, which contains fine particulates of salt and can lead to the quick corrosion of metallic engine parts inside ...

It is well known that gas-turbine powered aircraft operating in brown-out conditions can ingest a significant amount of particles leading to reduced engine performance, a reduction in time between maintenance and increased safety concerns. As such, it is critical to be able to accurately model the impact of ingested particles in engines for both maintenance purposes and in the design of new, more ...

The metal laser powder bed fusion market has an amazing projected compound annual growth rate of 22.5% to 28% over the next 5 years, which is driven by the aerospace and biomedical industries. However, part certification remains an arduous process due to the numerous rouge defects and anomalies which can occur. In situ sensors have promised and been shown to be capable of spotting these defects;  ...

Additive manufacturing (AM) processes such as laser powder bed fusion (LPBF) have received a great deal of attention due to their unique capability in producing parts with complex geometries. However, a major challenge limiting the application of LPBF today is the high variability in the quality of finished components. To address this challenge, HIDENN-AI, LLC and Northwestern University (NU) prop ...

Due to the physical complexity and intrinsic randomness in metal additive manufacturing (AM), the process control is intractable, the part quality is not repeatable, and the existing models fail to give consistent results to guide process design. To address this challenge, Global Engineering and Materials, Inc. (GEM) and its team members propose to develop a digital twin (DT) for AM process to ena ...

Additive Manufacturing (AM) is a modern and increasingly popular manufacturing process for metallic components, but it suffers from well-known problems of inconsistent quality of the finished product. The US Navy is interested in addressing this problem by developing a digital twin-based machine control tool for in-situ AM process monitoring and healing. Therefore, sensor fusion monitoring, machin ...