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Aerospace & Defense Technology: May 2014

2014-05-01
Simulating lightweight vehicles operating on discrete terrain Researchers characterize the mobility of autonomous reconnaissance vehicles on terrain considered to be deformable, and represented as a collection of bodies of spherical shape.
Magazine

Momentum: April 2014

2014-04-01
Methodology developed for safer hood design The methodology enables material selection and design optimization of energy absorbers for pedestrian protection based on a simple laboratory test and FE model, eliminating the need for extensive vehicle testing. Developing a winning formula It's been 20 years since the University of Michigan won a Formula SAE championship. Sick of getting smoked in recent years by top teams from Germany and the U.S., MRacing is going "big aero" for a better crack at the 2014 crown.
Magazine

Aerospace & Defense Technology: April 2014

2014-04-01
Toward smarter manufacturing and materials At the U.K.'s new Advanced Manufacturing Research Center, engineers and innovators have at their disposal some of the world's most advanced design and manufacturing assets for precision engineering. More electric, integrated fuel systems Engine system reliability can be improved by advanced electric architectures, while the reduction of hydraulic components, fuel tubes, and fittings can enhance the maintainability of the engine and minimize pilot workload.
Magazine

Automotive Engineering: April 1, 2014

2014-04-01
No hands, lots of brains A hefty amount of computing power built with new hardware and software architectures will be needed when vehicles begin taking over more of the driving tasks. Aerodynamics and flow simulations come of age With the advent of faster computers, engineers are using CFD software as a practical tool, shaping designs early in the product development cycle. The challenges today are in how best to use it and by whom. New rules shuffle the F1 deck New turbocharged hybrid-electric power units and revised aerodynamics may scramble the familiar order in Formula One for 2014. Stars of the show floor The editors of Automotive Engineering annually select from among SAE World Congress exhibitors the technologies that meet their criteria for a coveted Tech Award. Judging is based on level of design and engineering innovation, uniqueness, potential for 'real world' production application, and potential benefit for industry customers and end users.
Magazine

Automotive Design: January/February/March 2014

2014-03-21
Downsizing: the heat is off Ian Adcock discovers why a material developed in the nuclear industry could prove a real boon for OEMs as they look to downsize engines. Lightweight champions Could an alloy with the strength of steel, but as light as aluminium, prove to be a game changer for the automotive industry? Ian Adcock investigates. Road fatalities: eliminating the human factor In a new series on vehicle safety, Ian Adcock looks at the need for more driver intervention systems.
Magazine

Automotive Engineering: March 18, 2014

2014-03-18
Alternative fuels face challenges With gasoline prices seeming to stabilize and fuel economy measures taking hold is there a compelling need for alternative fuels? Automotive engineers offer some surprising reasons why there is.
Magazine

Aerospace Engineering: March 5, 2014

2014-03-05
Into the DEAP The Distributed Electrical Aerospace Propulsion project looks toward a future optimized integrated propulsion system that will allow cleaner, quieter, and more efficient performance to be incorporated into a radically innovative airframe that will feature enclosed electrically powered fans. Managing the deluge of data The model-based development (MBD) process has been a key enabler of technical advancement in the transportation industry; however, the MBD process leads to the generation of large volumes of data artifacts and work products. To maintain efficiency while continuously improving the quality of products, it is necessary to be able to manage this data in an efficient manner.
Magazine

SAE Off-Highway Engineering: March 4, 2014

2014-03-04
What's New at ConExpo/IFPE More new products and technologies that companies plan to showcase at this year's ConExpo-Con/Agg, which is co-located with the IFPE fluid-power event in Las Vegas from March 4-8, are previewed. Gearshift actuator dynamics in a dual clutch transmission The emergence of tougher environmental and fuel efficient legislations have triggered exploration and advance toward new and better vehicle transmission technologies. Software makes solid impact Programs are helping hydraulic systems do more while reducing operator workloads. Damping out booming noise NVH improvement techniques are gaining traction with the goal to improve the quality perception of off-highway equipment performance and operator comfort.
Magazine

Automotive Engineering: March 4, 2014

2014-03-04
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.
Magazine

Momentum: March 2014

2014-03-01
The future for electric and hybrid vehicles in India Technical and political challenges alike have held back the electric and hybrid market, but there are signs of hope. Flex-fuel snowmobile challenge results in improved efficiency and lower emissions Noise and exhaust emissions of recreational snowmobiles have come under increased scrutiny by the U.S. federal government. Students from Kettering University take on the design challenges of meeting or exceeding such regulations. Actuator dynamics in a dual clutch transmission The emergence of tougher environmental and fuel efficient legislations have triggered exploration and advance toward new and better vehicle transmission technologies.
Magazine

Mobility Engineering: March 2014

2014-03-01
Synergistic opportunities abound The horizontal deployment of technologies and knowledge evident in mass-market personal mobility needs to be scaled up in magnitude and performance for commercial vehicles. Q&A with Dr. V Sumantran The Hinduja Group's Executive Vice Chairman talks about his company's award-winning vehicle and related commercial-vehicle topics. The future of electric and hybrid vehicles in India Technical and political challenges alike have held back the electric and hybrid market, but there are signs of hope.
Magazine

SAE Vehicle Electrification: February 11, 2014

2014-02-11
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.
Magazine

SAE Off-Highway Engineering: February 6, 2014

2014-02-06
What's New at ConExpo/IFPE A preview of some of the new products and technologies that companies plan to showcase at this year's ConExpo-Con/Agg, which is co-located with the IFPE fluid-power event in Las Vegas from March 4-8. Injection strategies for improving emissions characteristics Premixed charge compression ignition reduces NOx and soot emissions, but requires the optimization of the injection timing and pressure, fuel mass in pilot injection, and EG R rate. Systems that talk together, are efficient together Design teams take a holistic view, linking engines, transmissions, hydraulics, and aftertreatment systems to boost efficiency and performance. Managing the deluge of data The model-based development (MBD) process has been a key enabler of technical advancement in the transportation industry; however, the MBD process leads to the generation of large volumes of data artifacts and work products.
Magazine

Automotive Engineering: February 4, 2014

2014-02-04
Designing for downforce Airflow is paramount for performance vehicles, which require aerodynamic enhancements to promote high-speed stability and greater cornering capability. Powering a drive to higher voltages 48-V systems are likely to power a new generation of functions including stop-start technology. Managing the deluge of data The model-based development (MBD) process has been a key enabler of technical advancement in the transportation industry; however, the MBD process leads to the generation of large volumes of data artifacts and work products. To maintain efficiency while continuously improving the quality of products, it is necessary to be able to manage this data in an efficient manner. A vision for SAE's future Longtime GM engineering executive and STEM education supporter Daniel M. Hancock brings a focused approach to his term as SAE International President.
Magazine

Aerospace & Defense Technology: February 2014

2014-02-03
Thermal simulation and testing of expanded metal foils for lightning protection With the implementation of major aircraft structures fabricated from carbon fiber reinforced plastic materials, lightning protection has become a more complicated issue for designers and engineers to solve. Electronics take charge Digital controls are handling more engine control tasks on a wider range of aircraft.
Magazine

Momentum: February 2014

2014-02-01
Evaluation of heavy-vehicle aerodynamic drag In an attempt to achieve a balance between Reynolds number, model scale, and tunnel blockage issues, a 1:3 scale heavy-vehicle testing program has been initiated at the Monash University 1.4-MW wind tunnel. Validating performance suspension parts advances A forum at the 2013 SEMA Show discussed three approaches to ensure performance parts compliance with Federal Motor Vehicle Safety Standard 126. Panelists also explained how simulation data, and kinematics and compliance measurements, can improve performance parts design. Active safety starts in the pilot's seat Dassault Aviation's next-generation integrated digital avionics systems contribute to enhanced air safety in civil applications. Chevrolet ups the performance ante with MY2015 Corvette Z06 Stiffer-bodied sports car gains wind-aided performance with supercharging and downforce for faster lap times.
Magazine

SAE Off-Highway Engineering: January 16, 2014

2014-01-16
Tighter communications help OEMs meet tighter regulations Closer links between powertrains and hydraulic systems cut fuel usage and emissions while improving efficiency.
Magazine

Aerospace Engineering: January 15, 2014

2014-01-15
Active safety starts in the pilot's seat Dassault Aviation's next-generation integrated digital avionics systems contribute to enhanced air safety in civil applications.
Magazine

Automotive Engineering: January 14, 2014

2014-01-14
Picturing a brighter future Displays are becoming a central focus for automotive interior design, forcing engineers to examine myriad trade-offs related to size, resolution, and supporting electronics.
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