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Finite element analysis
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News Power
Thermal Management Lies at the Heart of EV Innovation
At the heart of innovations that have powered improvements in EV range and performance is the pursuit of efficiency. Today’s electric drivetrains convert over 85% of a battery’s...
News Materials
Keeping Your Silicon Cool
Onboard electronics continue to evolve rapidly. Components are smaller. Systems are more complex. The sophisticated electronics components that make up modern vehicles require precision heat dissipation for...
Articles Aerospace
Vibration Testing NASA’s X-57 Maxwell Electric Aircraft
In place of the usual gasoline-powered motors, the X-57 has two all-electric motors powered by traction batteries.
Articles Power
Designing Transportable, High-Performance AI Systems for the Rugged Edge
System design requirements are well understood for high-performance artificial intelligence applications destined to reside in enterprise or cloud data centers. Data...
Articles Manufacturing & Prototyping
Advanced CT Inspection and Data Analysis
Learn about the ways to ensure that your composite designs are structurally sound.
News Software
USCAR Broadens Its Research Footprint
The project teams working under the USCAR (United States Council for Automotive Research) umbrella help carve a knowledge pathway to accelerate technology development. “We typically have...
News Energy
Advanced Simulation Techniques Drive Powertrain Design
Commercial vehicle designers are using a variety of simulation and validation tools as they attempt to find new ways to improve many aspects of vehicle design. Engineers are working...
Technology Report Design
Siemens Software Gets Weekly NASCAR Workout with Hendrick Motorsports
For round 23 of the 2018 NASCAR Cup series championship at Michigan International Speedway (MIS) in August, Siemens invited members of the media to attend the race in...
Articles Materials
Designing With Plastics for Military Equipment
U.S. soldiers carry loads of equipment and protective gear that can weigh anywhere from 45 to 130 pounds. This is more than enough to quickly tire even the most well-conditioned personnel,...
Articles Aerospace
Engine Air-Brakes
Airplanes, one of humanity's greatest inventions, evoke feelings of awe and amazement for most people, unless you live uncomfortably close to a major airport, in which case the feeling may become annoyance and irritation....
Briefs Propulsion
Measuring Propellant Stress Relaxation Modulus Using Dynamic Mechanical Analyzer
Structural analysis of solid rocket motors is challenging for several reasons, but the most important of these is the complex behavior of the propellant. The...
Articles Aerospace
Certifying Composite Designs for Aerospace and Defense
Wherever you find newer and particularly larger aircraft these days, you're seeing the use of composite materials. The latest commercial planes, as well as innovative defense prototypes,...
Briefs Materials
Multi-Scale Analysis of Deformation and Failure in Polycrystalline Titanium Alloys Under High Strain Rates
Extensive use of titanium alloys in critical industrial and military applications, such as compressor blades of jet engines and armor of...
Articles Sensors/Data Acquisition
Optimizing Thermal Management to Meet SWaP-C Requirements
As defense systems continue to shrink, corresponding thermal management concerns expand exponentially. Designers have learned that overheating can be the downfall of even the most...
Briefs Unmanned Systems
Development and Evaluation of the Stingray Amphibious Maritime Unmanned Ground Vehicle
Every year, the U.S. Navy and Marine Corps conduct thousands of Maritime Interdiction Operations (MIOs) to enforce embargoes, intercept contraband, prevent...
Briefs Aerospace
Reduced Order Modeling for Rapid Simulation of Blast Events of a Military Ground Vehicle and its Occupants
Improvised Explosive Devices (IEDs) pose a significant threat to military ground vehicles and soldiers in the field. Full-system...
Briefs Aerospace
Software for Material/Structural Characterization Across Length Scales
Synthetic and natural micro-architectures occur frequently, and multiphase functionally graded composites are becoming increasingly popular for applications requiring...
Articles RF & Microwave Electronics
Electromagnetic Simulation Accelerates Design of Microwave Amplifiers
An automated simulation-based design cycle has become a fundamental part of the success of one of today’s leading designers of traveling wave tube (TWT) microwave...
Briefs Physical Sciences
Wheel Force Transducer for Field Testing
This project endeavors to develop, validate, and calibrate cost-effective field test equipment for measuring tire characteristics on vehicles while driving off-road. The four wheel force transducers are...
Briefs Imaging
Wide-Field Imaging System and Rapid Direction of Optical Zoom
A breadboard system has been developed for demonstrating nonmechanical zoom using flexible thin films. The project consists of three major task areas: material characterization,...
Application Briefs Defense
Realistic Simulation Makes Army Helmets Safer
As materials, ergonomic design, and ballistics protection have evolved, the U.S. Army helmet has improved in form and function, from the M1 of WWII, to the 29-layer Kevlar PASGT (Personnel Armor...
Briefs Test & Measurement
Process for Testing Aeromedical Equipment
Medical devices are designed to function in environmentally controlled locations, such as stationary hospitals, and not within the harsh, dynamic aircraft environment. Yet, the same medical devices used...
Briefs Physical Sciences
Performance of Steel Stud Walls Subjected to Blast Loads
Construction trends have brought about an increase in the use of cold-formed steel studs in Air Force facilities. These steel stud walls have significant potential for mitigating large...
Briefs Physical Sciences
Characterization of a MEMS Directional Sound Sensor
There is a wide range of potential military applications in which ambiguity in bearing occurs with respect to sound. For example, autonomous unmanned aerial vehicles (UAVs) could employ a...
Articles Electronics & Computers
Thermal Trends and Improvements for Rugged COTS Cards
Thermal management of rugged COTS (commercial off-the-shelf) cards destined for defense applications has always been a challenge due to the high operating temperatures and other harsh...
Briefs Materials
Textile Capacitor
The Air Force (AF) is evolving from a Cold War-era force with a large, containment- focused infrastructure to a smaller, more responsive and affordable Air and Space Expeditionary Force. In support of this transformation, AFRL...
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How Airbus is Using w-DED to 3D Print Larger Titanium Airplane Parts
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Quiet, Please: NVH Improvement Opportunities in the Early Design Cycle