Keyword: Scale models

Briefs: Information Technology
Method for Evaluating the Pneumatic Hammer Stability of a Fluid-Film Bearing Using CFD

This invention relates to a fluid film bearing and a process for evaluating pneumatic hammer instability. Based on the stability criteria, a method was developed using 3D CFD (computational fluid dynamics) evaluation dynamics to evaluate the onset of pneumatic...

Application Briefs: Aerospace
Comet software
Comet Solutions
Cincinnati, OH
513-588-2773
www.cometsolutions.com

A Structural-Thermal-Optical-Performance (STOP) analysis is an...

Briefs: Aerospace
Method of Performing Computational Aeroelastic Analyses

When designing aerodynamic structures, it is important to understand if, and under what aerodynamic conditions, the structure will be stable and unstable. This is especially true if a structure is inherently flexible, such as a wing, where unstable response leads to oscillations of the...

Briefs: Mechanical & Fluid Systems
Irreversible Entropy Production Rate in High-Pressure Turbulent Reactive Flows

To model high-pressure reactive flows, the most promising methodology is large eddy simulation (LES) in which one solves the large scales of the problem and models the small scales. There is currently no guidance as to the relative importance of small scales...

Briefs: Software
Time-Scaled Activity Diagram Simulator

The Time-Scaled Activity Diagram Simulator software simulates and animates time-tagged events as an overlay on activity and internal block diagrams in MagicDraw as a plugin application. “Events” are quite generic and include atomic actions, compound actions, signal and message exchanges, invocations,...

Briefs: Information Technology

About 2.5 seconds after the launch of STS-114, the first Return to Flight launch after the Columbia accident, a large bird struck the external tank and fell into the exhaust plume. While this particular bird strike did not...

Application Briefs: Aerospace
Femap™ engineering simulation software
Siemens PLM Software
Plano, TX
972-987-3000
www.siemens.com/plm

Scheduled for launch in 2018, the James Webb...

Application Briefs: Imaging

The United States government spends a lot of money on its defense programs, investing in the training and technology necessary to arm and prepare the most advanced fighting force on the planet. The price tag...

Briefs: Sensors/Data Acquisition

DARPA’s Mind’s Eye Program aims to develop a smart camera surveillance system that can autonomously monitor a scene and report back human-readable text descriptions of...

Briefs: Information Technology
Visualization of fMRI Network Data

Functional connections within the brain can be revealed through functional magnetic resonance imaging (fMRI), which shows simultaneous activations of blood flow in the brain during response tests. However, fMRI specialists currently do not have a tool for visualizing the complex data that comes from fMRI scans....

Articles: Aerospace

“Be patient, if you want to see the concrete benefits of space research. I am confident that the benefits are there. We at NASA have been given a big job— planning and executing the nation’s civilian space...

Briefs: Software
CryoSim

In the context of systems health management, simulations serve many uses. For one, the underlying physical models can be used by model-based health management tools to develop diagnostic and prognostic models. These simulations should incorporate both nominal and faulty behavior with the ability to inject various faults into the system....

Briefs: Software
Explicit Filtering Leading to Grid-Independent and Discretization-Order-Independent Large Eddy Simulation

To validate simulations, one must trust that they are independent of the numerical aspects. A very promising, relatively new methodology for simulating turbulent flows, called Large Eddy Simulation (LES), has some issues in this respect. The...

Articles: Software

In our annual poll of executives at leading analysis and simulation software vendors, we found that both 3D printing and the cloud will have increasing impact on CAE in 2015, and users will...

Briefs: Software
Station Spacewalk

The Station Spacewalk game enables players to virtually conduct NASA repair work on the International Space Station, including jobs critical to help power up the space station so it can continue to operate. Players are provided with a limited quantity of oxygen during which they must complete extravehicular activities (EVAs)...

Briefs: Information Technology

Avery important stage in the manufacturing and production cycle of a part is designing and verifying a prototype. Very often in the medical, automotive, or aerospace industries, very...

Briefs: Information Technology
3D Finite Element Model of Magnetic Mirror and Nano Antenna

A 3D finite element mathematical model has been developed for representing a behavior of a magnetic mirror and nano antenna subject to polarized incident light. This model represents the fourth generation of magnetic mirror with the goal of suppressing the diffraction.

Briefs: Mechanical & Fluid Systems
Visual International Space Station Configuration Viewing Tool

Communicating the current International Space Station (ISS) configuration and also potential ISS configurations is a necessity during ISS trade studies and Ops Con development. Often, multiple configuration options will need to be communicated. Doing so without a means of displaying...

Briefs: Robotics, Automation & Control
Rotary Series Elastic Actuator

In order to perform human-like movement, an actuator is placed at each degree of freedom (DOF) in a humanoid robot. Additionally, these actuators must be packaged in an arrangement that approximates human structure and appearance. In this innovation, a rotary actuator assembly incorporates a brushless DC motor, a...

Briefs: Electronics & Computers

Semiconductor switch modules composed of Super Gate Turn-Off Thyristors (SGTOs) have been evaluated. The switches are intended to handle kiloamplevel currents and may dissipate peak...

Application Briefs: Aerospace
FlexSys
Ann Arbor, MI
734-975-9233
www.flxsys.com

FlexSys designed and built two experimental flaps for Armstrong Flight Research Center’s Gulfstream G-III Aerodynamics...

Articles: Imaging

High-speed photography is as much of an engineering tool as an oscilloscope, spectrum analyzer, or logic analyzer. The photographic technique enables us to visualize and analyze motion, especially...

Briefs: Sensors/Data Acquisition
Debris & Ice Mapping Analysis Tool — Database

The Debris & ICE Mapping Analysis Tool (DIMAT) system is a Web-based system that supports communication, data integration, data sharing, and problem definition/resolution through use of an integrated presentation framework for ice and debris description and analysis. It provides an integrated...

Application Briefs: Imaging

Robomotive and other humanoid robots equipped with 3D vision sensors are playing an increasing role in industrial automation, including in smaller binpicking set-ups where parts are...

Articles: Software

As traditional Computer-Aided Design (CAD) software expands with more simulation capabilities and wider enterprise data management, software vendors are meeting customers’ demands with solutions...

Articles: Aerospace

I recently had the chance to spend a day at NASA’s Johnson Space Center in Houston with the ten winners of the Speed2Design contest sponsored by Littelfuse, a Chicago-based circuit protection company....

Articles: Imaging

Industries as diverse as architecture, engineering, construction, advertising, and medical have all incorporated an array of 3D visualization technologies into their design,...

Briefs: Physical Sciences

While a variety of techniques exist to monitor trace gases, methods relying on absorption of laser light are the most commonly used in terrestrial applications....

Briefs: Software

In order to have the capability to use satellite data from its own missions to inform future sea-level rise projections, JPL needed a full-fledged ice-sheet/iceshelf flow model, capable of modeling the mass...