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Defense

Achieving Performance Advantages in Unmanned Systems

Unmanned Vehicle Systems (UVS) are reaching new levels of functionality and performance, and it’s not just for air vehicles either. Ground and underwater UVS programs are all taking...

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Defense

COTS Embedded Systems and Link Budgets

The days of proprietary embedded computing systems in military systems are numbered. Proprietary systems, with the attendant vendor lock-in, tend to be platform specific, increasing the development and...

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Aerospace

Fiber Optic Multi-Sensing Platforms

Eventually, technology advances to the point where solutions that have been “good enough” for decades are no longer “good enough” for the innovations of today. The philosophy of “good enough” is...

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Aerospace

RECAT Wake Turbulence Recategorization

Aviation safety is a fundamental concern for all stakeholders. The traveling public demands the highest safety standards, but also wants convenience and reliability at a low price with minimal...

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Defense

A New Concept for Improving the Performance of Electrically Small Antennas

Using advances in the areas of multi-mode, closely coupled miniaturized radiators and artificially engineered materials, ultra-broadband, highly efficient, electrically...

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Aerospace

Microwave Radiometer for Advanced Nanosatellite Control Systems

Microwave radiometers measure temperature, water vapor, and cloud ice in the atmosphere, since oxygen and water vapor naturally emit signals in the microwave portion of the...

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RF & Microwave Electronics

SAE Convergence 2016: Automakers, Suppliers Firm That Autonomous Driving Not Decades Away

For those who believe it unlikely autonomously-piloted vehicles will be coming in the foreseeable future, high-level technology executives from...

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News
Software

The Evolving Tire-Development Paradigm

Engineers working in today’s vehicle-development environment are faced with a unique challenge in relation to prototype vehicles: the cost of constructing prototypes and assemblies limits their...

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Green Design & Manufacturing

Optimizing Waste Heat Recovery for Long-Haul Trucks

A waste heat recovery (WHR) system for a long-haul truck application was examined via simulation, test bench, and public road vehicle testing as part of a joint project between CNH...

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Articles
Software

Fan-Shroud Optimization for Enhanced Thermal Performance

Tighter emissions requirements and underhood packing due to higher power demands from engines necessitate more optimized cooling packages. Fan and fan-shroud design is crucial for...

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Green Design & Manufacturing

Downsizing a HD Diesel Engine for Off-Highway Applications

Many off-highway applications demand a relatively high low-end torque compared to on-highway applications. Because of this, applying downsizing strategies for non-road applications...

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RF & Microwave Electronics

Autonomous Solutions in Agriculture

Advances in vehicle electronics and satellite navigation technologies have resulted in automatic guidance systems in agriculture that enable increased productivity and convenience. Systems such as John...

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Automotive

Pneumatically Shifted Air Suspension Loading on 6x2 Trucks

Trucks with a 6×2 axle configuration are lighter in weight compared to their 6×4 counterparts and can achieve greater fuel efficiency (FE) due to reductions in frictional losses...

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Propulsion

C3 Consortium Aims for Soot Solution

Predicting more accurately what happens in the complex chemical reactions between air and fuel when they are compressed and ignited in an IC engine’s combustion chamber—and solving the challenge of...

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Aerospace

Zero-Emissions Electric Aircraft: Theory vs Reality

Many different electrically propelled aircraft have been or are soon to be flying. Recently a zero-emissions electric aircraft, Solar Impulse, flew around the world with zero fuel. However,...

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Electronics & Computers

Revving up Thermal Characterization in the Component Lab

The dangers of faulty car airbags recently have become all too clear. The product-liability issues associated with airbags and the largest, most costly automotive recall in history...

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Electronics & Computers

Chipping away at Power Module Temperatures

Semiconductors are tiny compared to the off-highway vehicles that carry them, but their thermal issues aren’t small. Keeping the sub-micron elements of a chip cool is a major challenge for the...

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Articles
Defense

Seeing the Light

In order to meet the requirements of current-generation military ruggedized displays and monitors, various technology innovations have been developed that allow for an enhanced user experience. Accommodating all of these needs...

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Articles
Defense

Multiple Node Networking Using PCIe Interconnects

PCI Express (PCIe) interconnects, and how they can be used to support multiple node low latency data transfers over copper or optical cables, is gaining momentum in embedded computing solutions....

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Aerospace

Advanced Thermal Management Solutions

Now more than ever, devices with increasing power and smaller footprints are demanding a good stable cost effective thermal management solution. Fortunately many options are available today. However, for...

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Aerospace

Thermoelectric Cooling

There are many places one can go to get an outline on the pros and cons of different methods for enclosure cooling. Although we will briefly touch on them here, this is really an in-depth article on how to choose a...

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RF & Microwave Electronics

Analyzing Radar Signals with Demodulation

In the electronic warfare milieu, one of the most common RF applications is that of radar systems. Radar, which uses RF energy to determine the range, angle, and/or velocity of objects, detects...

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Aerospace

Combining Software and Hardware for Highly Specialized Multichannel Spectrum Monitoring

Systems specifically designed for spectrum monitoring applications typically acquire RF signals from a reference antenna or downlink, analyze the shape (or...

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Articles
Defense

Thermal Ground Planes Optimizing Heat Transfer in Aerospace and Defense Applications

Wide band gap (WBG) semiconductors are semiconductor materials that allow higher voltages, higher frequencies and operation at higher temperatures over...

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Articles
Defense

Thermal Management of Laser Diodes

High-power laser diodes can generate a great deal of heat. Even for laser diodes operating with 70% or higher efficiency, a large amount of applied energy is converted to heat. Since the performance and...

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Articles
Software

CAE's Next Leap Forward

The enormous complexity of today’s vehicles is well recognized. Not only are automakers turning to simulation as a cost-effective means to enhance physical test, it is becoming a fundamental tool in the design...

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Manufacturing & Prototyping

3D Printing Machines Can't Be Built Fast Enough, ORNL Expert Says

As Deposition Science and Technology Group Leader at Oak Ridge National Laboratory (ORNL), Ryan Dehoff facilitates the development of additive manufacturing of components,...

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Articles
Test & Measurement

Simulating Thermal Expansion in Composites with Expanded Metal Foil for Lightning Protection

The Boeing 787 Dreamliner is comprised of more than fifty percent carbon fiber reinforced plastic (CFRP) due to the material’s light weight and...

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Articles
Data Acquisition

Designing VME Power Systems With Standard Modules

Military electronics continue to push the performance envelope in all directions. Each new system design faces the same challenges: the need for more processing power, tighter specs, and shorter...

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