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Viewing 1 to 30 of 249
2017-11-30
Magazine
Meeting truck autonomy hurdles head-on Combining sensors, inter-vehicle communications and controllers poses major challenges in the effort to bring greater levels of automation to commercial trucking. Simulation key to additive manufacturing analysis Advanced simulation tools help to optimize 3D printing processes before physical build. Making the case for battery-electric fleet power Battery systems edge closer to a tipping point as commercial and heavy-duty fleets broaden their application. Electrified forklifts go big Hoist Liftruck brings full electrification to some of the biggest forklift trucks, motivated only in part by regulatory pressures.
2017-08-24
Magazine
On-Orbit Satellite Refueling Flow Measurement The Path from Concept to Operational Status Radiation Tolerant "Smart Backplanes" for Spacecraft Avionics Using Heat Pipes to Cool Embedded Computers Electronically Dimmable Aircraft Windows How do you block the light of the sun? Eliminating Electrical Arcing in Satellite Systems NASA Miniaturizes Century-Old Radio Sounder Technology Developing an Airborne Optical Systems Testbed (AOSTB) New Class of Excimer-Pumped Atomic Lasers (XPALS) Research demonstrates the viability of an atomic laser having a quantum efficiency greater than one. Hydrodynamic Drag Force Measurement of a Functionalized Surface Exhibiting Superhydrophobic Properties Comparing the skin friction drag effects of a superhydrophobic flat plate to an untreated flat plate of the same material and geometry.
2017-07-27
Magazine
The Rapid Rise of Beryllium-Aluminum Alloys in Aerospace Aeroacoustic Simulation Delivers Breakthroughs in Aircraft Noise Reduction Using System Simulation to Manage Increasing Thermal Loads on Aircraft Fuel Systems Ensuring the Compliance of Avionics Software with DO-178C Microwave Photonic Notch Filter Helps Ensure Critical Mission Success Measuring Propellant Stress Relaxation Modulus Using Dynamic Mechanical Analyzer New testing technique requires less material, gives more accurate results. Combustion Characteristics of Hydrocarbon Droplets Induced by Photoignition of Aluminum Nanoparticles Test methodology allows analysis of combustion dynamics for subscale rocket injectors under super critical conditions. Vapor Pressure Data and Analysis for Selected Organophosphorous Compounds: DIBMP, DCMP, IMMP, IMPA, EMPA, and MPFA Determining the thermophysical properties of chemical warfare agent simulants can help evaluate the performance of defensive equipment.
2017-04-06
Magazine
Connectivity continues its advance More OEMs and Tier 1 suppliers are focusing on embedded telematic systems, hoping to displace aftermarket hardware. Tailoring fuel injection to control NOx The next big step to help heavy-duty diesel engines meet stricter emissions regulations involves adapting the fuel-injection system to the combustion needs. Active on safety Crash-avoidance technologies are vital "building blocks" to automate commercial vehicles, implement truck platooning and ultimately achieve zero accidents. Engineering with simulation and data Companies are discovering new simulation techniques, especially optimization; the next step is to combine simulation with sensor data and predictive analytics to create even more robust off-highway equipment.
2017-02-03
Magazine
A greener future for two-wheelers New BS VI emissions standards for two-wheelers are an enviro-opportunity. Additive manufacturing How 3D printing will transform the A&D support chain. Autonomous plows ahead Agriculture, construction, mining-even marine-are advancing autonomous technology to improve the productivity and safety of vehicles on the job. Bridging the power gap with 48 volts New 48-V technologies are poised to arrive in volume to help meet CO2 regulations and satisfy the "vampire" power demands of new electrical subsystems and accessories. Advances in lightweight electronics protection Conformal coatings increase reliability of aerospace and military assemblies.
2016-11-16
Magazine
Focus on advanced safety systems and human-factor interventions The impact of REACH on the aviation sector Considered the most comprehensive chemical-regulation legislation to date, REACH presents serious ramifications for the aircraft industry. Lightweighting: What's Next? Experts weigh in on the challenges and future enablers in the battle to reduce vehicle mass. The best of COMVEC 2016 Autonomous vehicles and improved fuel efficiency via advanced powertrain solutions are pressing topics detailed in this select group of technical papers from the SAE Commercial Vehicle Engineering Congress. Optimizing waste heat recovery for long-haul trucks Autonomous solutions in agriculture Downsizing a HD diesel engine for off-highway applications Zero-emissions electric aircraft: Theory vs. reality
2016-10-07
Magazine
The Best of COMVEC 2016 Autonomous vehicles, improved fuel efficiency and thermal management are among the pressing topics detailed in this select group of technical papers from the SAE Commercial Vehicle Engineering Congress. Autonomous solutions in agriculture Pneumatically shifted air suspension loading on 6x2 trucks Optimizing waste heat recovery for long-haul trucks Downsizing a HD diesel engine for off-highway applications Fan-shroud optimization for enhanced thermal performance Touch takes hold, switches lend a hand Touch screens are becoming the norm, but knobs and switches are often used to improve operator comfort. U.S. Army marches toward driverless future TARDEC targets vehicle autonomy with new V2V / V2X test bed in Michigan.
2016-08-05
Magazine
Clearing the air Sensors, diagnostics and controls advance to help trap emissions. Bringing the heat on cooling technologies Electronic controls, variable-speed fans cool engines, heat aftertreatment systems. 3D printing machines can't be built fast enough In the additive manufacturing world, the costs of components are dropping, the technology is becoming more reliable and parts are fabricated faster, allowing industries beyond aerospace to adopt additive technologies, says Oak Ridge Lab's Ryan Dehoff.
2016-06-03
Magazine
Executive viewpoints Industry leaders offer their insights on the state of the heavy-duty on- and off-highway industries in this annual series of opinion pieces. The executives share their views on the most pressing technologies and trends shaping their business and the industry moving forward. Annual Product Guide Top products from throughout the industry covering technologies such as Powertrain & Energy, Hydraulics, Electronics, and Testing & Simulation.
2016-05-17
Magazine
Base-engine value engineering for higher fuel efficiency and enhanced performance Continuous improvement in existing engines can be efficiently achieved with a value engineering approach. The integration of product development with value engineering ensures the achievement of specified targets in a systematic manner and within a defined timeframe. Integrated system engineering for valvetrain design and development of a high-speed diesel engine The lead time for engine development has reduced significantly with the advent of advanced simulation techniques. Cars poised to become 'a thing' Making automobiles part of the Internet of Things brings both risks and rewards. Agility training for cars Chassis component suppliers refine vehicle dynamics at the high end and entry level with four-wheel steering and adaptive damping.
2016-05-02
Magazine
UAV Technology Using SWaP-C Reductions to Improve UAS/UGV Mission Capabilities UGV Technology Designing Rugged Computing Platforms for UGVs UUV & Robotics Technology Bi-manual Dexterous Manipulation for Maritime Explosive Ordnance Disposal UUV Technology Applying UUV Advances to Safeguard Harbors and Littoral Waters Robotics Technology Designing a Robot to Counter Vehicle-Borne Improvised Explosive Devices
2016-04-08
Magazine
Software's role continues to expand Design teams use different technologies to create new software and link systems together. Emissions regulations and engine complexity With the European Commission announcing a Stage V criteria emissions regulation for off-highway, scheduled to phase-in as earlly as 2019, there will be an end to a brief era of harmonized new-vehicle regulations. Will this affect an already complex engine development process? Evaluating thermal design of construction vehicles CFD simulation is used to evaluate two critical areas that address challenging thermal issues: electronic control units and hot air recirculation.
2016-02-16
Magazine
Autonomous vehicles: impact on society Self-driving technology offers plenty of promise, but not everything about autonomous vehicles will be a panacea. Crankshaft reliability by integrated design, simulation, and testing This testing method is proven and beneficial for the design and development of the crankshaft and could be applied to other critical engine components, thereby extending to system reliability. New Engines 2016 Highlighting the design, engineering, and technologies inside some of the most competitive gasoline and light-duty diesel ICEs. Touch and go Avionics developments are changing life in the cockpit and at airborne work stations. Improving heavy-duty engine component efficiencies Cylinder deactivation can improve fuel economy by using a reduced number of cylinders that operate at higher loads and thermal efficiency, while other cylinders are turned off, when the engine operates at partial load conditions.
2016-02-05
Magazine
Off-highway hybrids: Opportunities and challenges With oil prices declining and emissions regulations in North America 'stabilized,' is there a place for hybrid powertrains in this new world of cheap oil? Looking for a better image Display advances are helping to reduce operator fatigue. Charging up electrified powertrains Control technologies race forward while batteries improve and adopt standard sizes. Measuring and accounting for suspension TARDEC teamed with SEA Ltd. to develop a system to measure the suspension parameters, center of gravity, and moments of inertia of wheeled vehicles in the never ending quest to model and predict vehicle dynamic behavior. Looking at mobility in 2050 Cuneyt L. Oge begins his term as 2016 SAE International President with a vision about the future of auto- and aero-mobility.
2015-12-01
Magazine
Uncertainty quantification The technique is a must for next-generation simulation tools. Oil-pump sizing Researchers from Hinduja Tech investigate options for low friction and power consumption. The future of Indian commercial aviation The growth in traffic that airport modernization has supported has also made a significant contribution to the local and national economies, while the improved infrastructure has been positive for the perception of India in the global market. Driving EVs toward lower cost The race ison to reduce battery and electric-drive systems cost while improving efficiency. Powering on Rolls-Royce's Chief Engineer discusses new technologies that inspire current R&D design and evaluation work as part of its strategic roadmap for future big commercial programs. HMIs extend beyond the cab Telematic functions are being integrated into multi-function user interfaces.
2015-10-07
Magazine
HMIs extend beyond the cab Telematics functions are being integrated into multi-function user interfaces. Standards step forward in design of off-highway electronics Functional safety standards are starting to impact many development projects, while the auto industry's AUTOSAR standard is being deployed to help enable software reuse and simplify designs. Leveraging automotive lightweighting techniques to improve off-highway emissions Where systems engineers can gain efficiencies in off-highway equipment is agnostic, they'll take it anywhere, and so they should, but one of the ways, often underestimated, is through the use of strong and lightweight advanced materials. Waste heat recovery for the long haul A WHR system based on an organic Rankine cycle has been developed for a long-haul Iveco Stralis truck.
2015-05-01
Magazine
Unmanned Aerial Systems Deploying Next-Generation UAS Platforms with 3U VPX Unmanned Ground Vehicles UGVs - On the Cutting Edge of Thermal Management Unmanned Surface/Underwater Vehicles Controlling the Seas - Introducing a New Concept in Autonomous Surface/Underwater Vehicles Robotics Connectivity in Robotic Systems
2014-09-04
Magazine
Putting lightweighting to the test Material laws and orientation information are coupled in a single finite element analysis to predict the performance of the hybrid composite beam under a dynamic three point bending load. Screens, cameras provide new look in cabs Video inputs are another option showing up on displays that increasingly offer touch control. Big performance in small packages By regulating light-duty engine variable speed fans based on heat rejection demands and ambient temperature, consistent power savings over the entire operating spectrum can be achieved.
2014-07-10
Magazine
Off-highway engines advance beyond Tier 4 With Tier 4 Final/Stage IV needs met, engine OEMs direct their focus and competitive energies toward optimizing competitive solutions. At the same time, they need to keep a weather eye out for future regulations, which many expect. Autonomous vehicle challenges span many fields Many of the challenges faced by military and commercial design teams are similar. Racket busters With a quiet cab at the top of many tractor buyers' wish lists, agricultural equipment manufacturers are pursuing every opportunity possible to shed decibels.
2014-05-08
Magazine
Executive Viewpoints Off-highway industry executives write about some of the challenges and trends facing the industry over the next 20 years, and the innovation that will be required to stay competitive and sustainable. Annual product guide A product roundup showcasing the newest and most innovative supplier technologies in a variety of areas such as Powertrain & Energy, Electronics, Hydraulics, Materials, Testing & Simulation, Body and Chassis, and Interiors.
2014-03-04
Magazine
Touch-less control coming to cars Use of proximity and gesture-recognition systems in auto cockpits could rise fifty-fold within a decade. Forming a strong bond Multi-material vehicles are becoming more prevalent as automakers attempt to reduce vehicle weight and boost fuel efficiency. Selecting the proper adhesive is critical when bonding dissimilar materials. SAE 2014 World Congress preview special section: 'Creating New Possibilities' Host company Hyundai and Tier 1 Strategic Partner, Delphi, established "Creating New Possibilities" as the theme for this year's premier engineering event taking place April 8-10 in Detroit's Cobo Center. This special Congress preview section uncovers some of those possibilities, featuring insights from the event's executive leadership; details of a Delphi/Hyundai advanced engine program; highlights from the technical program in the areas of powertrain, materials, testing and simulation, electronics, interiors, and body/chassis; and more.
2014-02-11
Magazine
Inside the cell walls The high cost of lithium-ion batteries is a prison that has largely kept electric vehicles off the street; the keys to their release are more effective—but not more expensive—cell chemistries.
2013-09-05
Magazine
Operators see bright screens in their future HMIs borrow from tablets, phones to help operators perform a broad range of tasks Small engine landscape Kubota engineers developed new small-displacement engines that adopt a common-rail system while optimizing the combustion system and injection characteristics. Sensitive to safety A growing number of digital sensors are among the tools being used to make sure failures are rare and injuries are even more infrequent.
2013-09-03
Magazine
Honda flexes new powertrain muscle Honda R&D's top engineer outlines his company's Earth Dreams powertrain assault that includes more efficient, robust, and refined ICEs; new hybrid drive systems; and further developments in FCEVs, HCCI, plasma ignitions, and Rankine-cycle engine types. Setting Hyundai's fuel cell strategy Hyundai is one of two major OEMs that are still going it alone in developing FCEV technology, rather than collaborating with competitors. The company's head of fuel cell R&D explains the path toward 2015 series production. Volvo Trucks makes a case for DME The truck maker is working with Oberon Fuels and others to bring dimethyl ether-what company execs say is one of the most promising sustainable alternative fuels-to North America in 2015. Sensing a need for creature comforts Automakers and suppliers are turning to new sensors to help make cabins more comfortable and safer while automating some tasks.
Viewing 1 to 30 of 249