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Army Develops Technology to Intercept Drones

As drone technology gains greater public attention, along with its potential for hostile action against American targets, Army engineers are adapting ongoing research to counter aerial systems that could threaten soldiers. At Picatinny Arsenal, the Extended Area Protection and Survivability Integrated Demonstration (EAPS ID) began as an Army Technology Objective program. The goal was to develop and demonstrate technology, which could support a gun- based solution to counter rockets, artillery and mortars (C-RAM). Research into enhanced C-RAM technology had the goal of extending the range and probability of success against the incoming threat.

Posted in: News, Defense
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Researchers Embed Sensors Inside 3-D Printed Parts

In an effort to better monitor the structural health of military equipment, Picatinny Arsenal and engineers from the Naval Air Warfare Center Aircraft Division (NAWCAD) Lakehurst have recently teamed up to embed 3-D printed metal parts with internal sensors.

Posted in: News, Defense
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World’s First Full-Color, Flexible, Skin-like Display Developed

Imagine a soldier who can change the color and pattern of his camouflage uniform from woodland green to desert tan at will. Or an office worker who could do the same with his necktie. A breakthrough in a University of Central Florida lab has brought those scenarios closer to reality. A team led by Professor Debashis Chanda of UCF’s NanoScience Technology Center and the College of Optics and Photonics (CREOL) has developed a technique for creating the world’s first full-color, flexible thin-film reflective display.

Posted in: News, Defense
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Two-Stroke Engines

Ewatt AeroSpace Company (Wuhan, China) has developed a new series of lightweight, powerful and reliable two-stroke engines for both UAV and light-manned aircraft. The engines are being designed and developed by aircraft engine designer Guido Polidoro in Ewatt’s new European Engine Development Center in Piacenza Italy. The new Ewatt engine is designed to be modular, and expandable into multi-cylinder versions to produce more horsepower. Each cylinder has 188cc displacement, developing 22 horsepower at 7500 RPM, making the single-cylinder version, at 7 kilograms, a powerful alternative to other engines on the market.

Posted in: Products, Defense, Manufacturing & Prototyping
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30 GHz and 35 GHz Microstrip Isolators

TRAK Microwave (Tampa, FL) has announced two new Microstrip Isolators covering popular mm-wave frequency bands. Models T001110 (29.6-30.6 GHz) and T001111 (34.5-35.5GHz) integrate ferrite circulator/ isolator substrates on to printed circuit board (PCB) material providing for a high performance, yet economical, solution. Typical insertion loss is 0.8dB, return loss 20dB, and isolation of 20dB. These devices handle RF power levels consistent with T/R Module applications in phased array radar or SatCom tracking antenna systems.

Posted in: Products, Defense, Manufacturing & Prototyping
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Compute Stick with Windows

Mouser Electronics, Inc. (Mansfield, TX) is now shipping the Intel® Compute Stick with Windows 8.1, a new generation of computer from Intel Corp. The Compute Stick is a revolutionary new device that enables any screen with an HDMI interface to become a fully functional personal computer. The Compute Stick comes pre-installed with the Microsoft ® Windows® 8.1 operating system. The Intel Compute Stick is a fully-functional computer in a package similar to a large USB stick.

Posted in: Products, Defense, Manufacturing & Prototyping
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ARINC 429 XMC Interface

GE Intelligent Platforms (Huntsville, AL) recently announced the RARXMC ARINC 429 High Density XMC Interface for deployment on many single board computers. Designed for embedded, laboratory and simulator applications, the RARXMC supports maximum data throughput on all channels while providing onboard message scheduling, label filtering, multiple buffering options, receive message time-tagging and error detection, and IRIG-B receiver (AM or DC/TTL) and generator (DC/TTL).

Posted in: Products, Defense, Manufacturing & Prototyping
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Avionics Interface Computer

Data Device Corporation (Bohemia, NY) has introduced the Avionics Interface Computer (AIC), providing a scalable, programmable, and portable platform to develop and test MIL-STD-1553 and ARINC 429 system applications via an Ethernet network. The AIC features 2 PMC and 2 Mini- PCIe expansion sites, allowing users to select interface boards optimized for their specific application and connectivity needs. An onboard Intel® Atom™ E3845 Quad Core 1.91GHz processor provides programming flexibility and simplifies connectivity by automatically bridging messages in real-time between Ethernet, ARINC 429, and MIL-STD-1553. The BU-67121W AIC also lowers the complexity and cost of many long discrete cables by locating the 1553/429 interfaces close to onboard electronics, and using the Ethernet interface to provide network access and control from the test lab.

Posted in: Products, Defense, Manufacturing & Prototyping
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Adaptive IF Relay XMC

Pentek, Inc., (Upper Saddle River, NJ) has introduced the newest member of its Cobalt® line of XMCs (Switched Mezzanine Cards). The Model 71624 dual channel, 34 signal, adaptive IF (Intermediate Frequency) relay XMC with a Virtex- 6 FPGA accepts two IF analog input channels, modifies up to 34 signals, and then delivers them to two analog IF outputs. Any signal within each IF band can be independently enabled or disabled, and changed in both frequency and amplitude as it passes through the module. The Model 71624 features 34 digital down converters (DDCs), each independently tunable across a 100 MHz input IF range, handling signal bandwidths from 20 kHz up to 312 kHz. The DDCs deliver 34 baseband signals to the host computer, which determines how each signal is dropped, replaced, or changed in amplitude and frequency. The modified signals are then combined and delivered as an analog IF output.

Posted in: Products, Defense, Manufacturing & Prototyping
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Brushless DC Motors

BEI Kimco Magnetics (Vista, CA) has developed new frameless brushless DC motors in multiple designs for a variety of applications including robots and remotely piloted military vehicles. These new motors provide operational efficiencies in excess of 90% by utilizing proprietary low magnetic circuit design techniques to extend battery life. Other important features include a frameless motor design composed of two pieces a rotor and stator. This design makes it easy to integrate into a customer’s existing assembly, minimizing the need for extra components and reducing overall weight. Motors range up to 20" in O.D. with torques in excess of 50Nm and operational speeds beyond 70K rpm.

For Free Info Click Here

Posted in: Products, Defense, Manufacturing & Prototyping
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Synthetic Vision Guidance Systems Giving 2D data a 3D perspective

Synthetic Vision (SV) displays replace the pilot’s traditional 2D primary flight display (PFD) with a 3D perspective view display. The 3D SV perspective display is rendered from an onboard terrain database, e.g., one derived from the Enhanced Ground Proximity Warning System (EGPWS) to create a virtual reality- like image. A comparison of a traditional 2D PFD with a 3D SV PFD is shown in Figure 1.

Posted in: Articles, Aerospace, Defense, Navigation and guidance systems, Displays
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The Conundrum of DO-254 Compliance and COTS IP

A tornado is blowing through a specific area of the semiconductor market. The market for Intellectual Property (or IP, also known as IP cores or IP blocks) is roughly $2.5B and growing at twice the rate of the overall semiconductor market. As semiconductor platforms offer a continually increasing silicon playing field, designers are struggling to fully utilize the design real estate now available to them. Traditional design techniques simply can’t keep pace. This is where IP fits in. IP provides pre-designed building blocks that can be connected relatively quickly and easily to create complex, custom semiconductor designs. Thus, IP is a critical bridge between designers’ creative productivity and the markets’ ever increasing demands for cheaper, smaller, lighter, lower-power, more reliable, full-featured designs.

Posted in: Articles, Aerospace, Defense, Design processes, Semiconductors
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Let the Good Times Continue to Roll

It is hard to imagine just how radical the change in fortunes for the world’s major commercial aerospace manufacturers has been in the last few years. Just ten years ago the smart money in aerospace pointed to the defense sector as the best source of future profitability. But just as this was reaching a peak, the full impact of a near meltdown in global financial markets brought home to Western governments that defense budgets couldn’t just keep on expanding and a new era of military program cuts began.

Posted in: Articles, Aeronautics, Aerospace, Defense, Commercial aircraft
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Big Data, Aircraft, and a Better Future

The hype phrase today is “Big Data.” It is a phrase Mark Bünger, Research Director for Lux Research, believes can have a number of definitions depending on who is doing the defining. Bünger was the lead analyst on a report that Lux published in April 2015 that surveyed both the technology as it is today and how various industries are adapting to the opportunities—and perils—in trying to exploit it.

Posted in: Articles, Aeronautics, Aerospace, Defense, Manufacturing & Prototyping, Data management, Aircraft
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Unmanned Ground Vehicle Communications Relays

The need for a high-bandwidth communication link to carry multiple video channels from a mobile robot (unmanned ground vehicle, or UGV) back to a control station requires using high-frequency RF communication links. These links are mostly line-of-sight, often limiting the flexibility of the robot’s movement. The Autonomous Mobile Communication Relays project demonstrated the capability of autonomous slave robots to provide communication-relaying capability for a lead robot exploring an unknown environment.

Posted in: Articles, Aerospace, Defense, RF & Microwave Electronics, Telecommunications, Vehicle networking, Autonomous vehicles
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System Generates and Simulates Skin-Echo Pulses for Radar Testing

One of the methods for radar testing is the simulation of an environment where there are dynamic or static objects that are scanned by the radar under test. In particular, simulation implemented by MPG Instruments (Rome, Italy) generates skin-echo pulses coming from radar that transmits a defined pattern stream. The system simulates an object in the scanning area of the radar and is hit by a pulse pattern stream. The X-band radar must be tested at a frequency from 7 GHz to 12.5 GHz, and K-band between 12 GHz and 40 GHz.

Posted in: Articles, Aerospace, Defense, RF & Microwave Electronics, Simulation and modeling, Radar, Test procedures
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Tourniquet Training System

Charles River Analytics
Cambridge, MA
617-491-3474
www.cra.com

The Department of Defense recently awarded Charles River Analytics, a developer of intelligent systems and robotic platforms, a follow-on contract for Tourniquet Master Training (TMT). The TMT course helps warfighters provide immediate aid by halting the bleeding of soldiers' battlefield wounds.

Posted in: Application Briefs, Aerospace, Defense, Medical, health, and wellness
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Hybrid-Electric Military Motorcycle

Logos Technologies
Fairfax, VA
703-584-5725
www.logostech.net

In partnership with the San Francisco, CA-based motorcycle maker Alta Motors, Logos Technologies has received a Phase II Small Business Innovation Research (SBIR) award from the Defense Advanced Research Projects Agency (DARPA) to continue development of the SilentHawk military motorcycle.

Posted in: Application Briefs, Aerospace, Defense, Hybrid electric vehicles, Military vehicles and equipment, Two or three wheeled vehicles
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Electrocoat Primer System

PPG Industries
Pittsburgh, PA
412-434-3131
www.ppgaerospace.com

PPG Industries’ aerospace coatings group has installed an electrocoat primer system at the US Coast Guard Aviation Logistics Center in Elizabeth City, North Carolina. The technology, custom-designed to protect the facility's aerospace parts, has reduced the time needed for primer application, processing, and full-cure.

Posted in: Application Briefs, Aerospace, Defense, Aircraft structures, Coatings Colorants and Finishes, Corrosion, Parts
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Game-Based Naval Training

Office of Naval Research
Arlington, VA
703-696-5031
www.onr.navy.mil

To improve the ability to detect and defeat adversary radars and anti-ship missiles, the Office of Naval Research (ONR) partnered with the MIT’s Lincoln Laboratory and games experts Metateq and PipeWorks Studios to develop Strike Group Defender (SGD), a multiplayer training program.

Posted in: Application Briefs, Aerospace, Defense, Computer software / hardware, Marine vehicles and equipment, Military vehicles and equipment, Missiles
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Testing Multijunction Solar Cell Efficiency

The photovoltaic community is closer than ever to achieving ultra-high multijunction solar cell efficiencies (>50%). Subcells from III–V compound semiconductors are approaching ideal Shockley–Queisser behavior and emit significant radiation of photons with energies equal to or above the optical bandgap because non-radiative recombination has been minimized with advanced growth processes. The optical environment of a solar cell controls where the radiated photons from a subcell are directed, and this greatly affects its efficiency. Thus the optical design of multijunction architectures is crucial for maximizing performance. To date, light trapping and radiative coupling have been investigated as promising optical design strategies. Light trapping inhibits the radiative emission of a subcell in order to reduce the dark current and increase voltage.

Posted in: Briefs, Aerospace, Defense, Architecture, Optics, Solar energy, Semiconductors
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Thermal Response of Ultra-High Molecular Weight Polyethylene (UHMWPE) Materials in a Flash Flame Test

Testing was performed on Ultra-High Molecular Weight Polyethylene (UHMWPE) fabric and composite material in a flash flame environment when protected by a flame-resistant (FR) fabric outer layer. UHMWPE material has excellent ballistic protection properties, but has generally not been considered for ballistic protection garments due to its low melting point. This research was conducted to determine if UHMWPE materials could be considered for use in the recently developed protective undergarment (PUG) if worn beneath an FR uniform.

Posted in: Briefs, Aerospace, Defense, Materials, Composite materials, Fabrics, Polymers, Thermal testing
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Thermal Conductivity Measurement Setup for Low-Temperature Characterization of Laser Materials

Operating lasers at cryogenic temperatures gained maturity only in the mid-90s due mostly to the progress in transparent, laser-grade ceramics and semiconductor pump sources. The main limiting factors for power scaling of room-temperature solid-state lasers are thermal effects such as thermal lensing, induced polarization losses, and fracture.

Posted in: Briefs, Aerospace, Defense, Conductivity
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Non-Destructive Damping Measurement for MEMS Acceleration Switches

Microelectromechanical systems (MEMS) three-axis acceleration threshold sensors have been developed to measure acceleration threshold levels using voltage switching when the threshold is reached. Switches with different damping coefficients result in different mechanical impedances and response times. Analytical and numerical methods to model damping coefficient values based on empirical data are needed to characterize three-axis acceleration sensors; traditional methods use the displacement of an underdamped system to calculate the damping ratio.

Posted in: Briefs, Aerospace, Defense, Mechanical Components, Simulation and modeling, Sensors and actuators, Switches
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High-Strength Aluminum Powder Developed for Additive Manufacturing in Aerospace, Automotive

Metal laser melting has made a successful leap from rapid prototyping to an approved manufacturing technology, and the method is increasingly becoming an option for companies in high-tech industries, according to Toolcraft. And now the German manufacturer has teamed with Airbus APWorks to offer another option for additive manufacturing—the Airbus subsidiary’s Scalmalloy high-performance aluminum powder.

Posted in: Technology Update, Defense, Powder metallurgy, Aluminum alloys
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Propulsion Performance Model for Efficient Supersonic Aircraft

For the design process of the class of aircraft known as an efficient supersonic air vehicle (ESAV), particular attention must be paid to the propulsion system design as a whole including installation effects integrated into a vehicle performance model. The propulsion system assumed for an ESAV considered in a recent study done by Optimal Flight Sciences LLC and the Air Force Research Laboratory was a three-stream variable cycle engine (VCE).

Posted in: Technology Update, Defense, Design processes, Simulation and modeling, Aircraft
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Scientists Print Radio Frequency Antenna with Graphene Ink

Scientists have taken a significant step in moving graphene – the incredibly strong and conductive single-atom-thick sheet of carbon – from lab bench novelty to commercially viable material for new electronic applications.

Posted in: News, Defense
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Smart-Mortar Could Help Soldiers Hit Targets

The Army hopes its new 120mm Guided Enhanced Fragmentation Mortar (GEFM) will improve soldiers' ability to put artillery on target. The GEFM is a high- accuracy, GPS-guided mortar concept currently under development.

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Compact UV Lasers Could Spot Dangerous Substances from a Distance

For soldiers in the field, the ability to identify an object or substance based on how it responds to light could mean the difference between life and death. They could, for example, determine from a safe distance if an approaching person or vehicle is carrying an explosive device or dangerous biological agent.

Posted in: News, Defense, Lasers & Laser Systems
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Army Equips Vehicles With Electronic Stability Control

Soldiers laud the ballistic protection Mine Resistant Ambush Protected (MRAP) vehicles that protect them against underbody threats, but now a brand-new MRAP feature, the first of its kind for the Army, will help maximize warfighter safety and survivability.

Posted in: News, Defense
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