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Viewing 1 to 29 of 29
2017-09-28
Magazine
Using Thermal Simulation to Model the Effects of Wind on the Mars Curiosity Rover Quality and Validation of Digital Designs for Aerospace and Defense Scaling LiDAR Optical Payloads from Drones to Miniature UAVs Using Sintered Fiber Metal Composites for Aircraft Acoustic Attenuation GaN Breaks Barriers RF Power Amplifiers Go Wide and High Test System Ensures Flawless Performance of Military RF Devices The Impact of Video Compression on Remote Cardiac Pulse Measurement Using Imaging Photoplethysmography Remote physiological measurement technique leverages digital cameras to recover the blood volume pulse from the human body. Sensitivity Simulation of Compressed Sensing Based Electronic Warfare Receiver Using Orthogonal Matching Pursuit Algorithm Calculate the sensitivity of a CS based EW receiver using two modulation schemes.
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.
2017-05-05
Magazine
Alternative fuels and challenges Automotive powertrain development: virtually-connected hardware co-simulation Functional Safety-progressing towards safer mobility Electric rockets and the future of satellite propulsion Achates powers toward production A potential ICE game-changer, the Achates OP engine is being tooled up for production at one OEM while a new 2.7-L triple for light-truck demonstrations enters the build phase. 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.
2017-01-26
Magazine
Open Standard Middleware Enables New HPEC Solutions Cooling Your Embedded System What Can Your Open Standard Architecture Handle? Evaluating Key Certification Aspects of Multicore Platforms for Safety Critical Avionics Applications Simulating and Analyzing Flow for an Air-to-Air Refueling System The Ins and Outs of Spaceflight Passive Components and Assemblies Development of High Quality 4H-SiC Thick Epitaxy for Reliable High Power Electronics Using Halogenated Precursors Silicon Based Mid-Infrared SiGeSn Heterostructure Emitters and Detectors Reconfigurable Electronics and Non-Volatile Memory Research Energy-Filtered Tunnel Transistor: A New Device Concept Toward Extremely Low Energy Consumption Electronics
2016-09-01
Magazine
Solving the Greenhouse Gas puzzle While automakers and policymakers debate the TAR, engineers and product planners prepare for the steep climb to meet GHG and CAFE rules beyond 2022. Revving up thermal characterization in the component lab The latest generation of high-speed infrared cameras can capture airbag deployments and other fast-moving actions quickly and accurately. C3 consortium aims for soot solution A newly formed group of companies led by CFD specialists Convergent Science targets exhaust particulate reduction in the combustion chamber. Inside the autonomous vehicle With less focus on driver needs, comfort, safety, and occupant productivity will become key. Editorial: Bad gas?
2016-08-16
Magazine
Types of aircraft passenger-escape systems An overview of existing and potential new methods for assuring aircraft occupant safety. SAE Skill India Initiative: S2I2 A new SAEINDIA collaboration aims to help young engineers acquire "industry-ready" skills. A technology-driven sustainable-agriculture solution Pumping more air into the cylinder is key to solving the CAFE puzzle, and engineers are hard at work figuring out the best ways to do it with turbocharger and supercharger innovation. Rotorcraft icing computational tool development 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.
2016-04-08
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.
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.
2015-08-05
Magazine
Making sense of autonomy Industry offers a range of sensors that will free humans from many tasks while also improving reliability, though devising strategies that meet demanding requirements without breaking the bank is no easy challenge. Life-cycle planning-Design and calibration for ultimate efficiency The ultimate power of Big Data technologies relies on the implementation of new strategies. Unlike a traditional engine calibration process, in which only calibration test data and model simulation data are used, multiple source data introduced into the adaptive engine calibration process contributes to efficiency and cost reduction. The complicated future of off-highway engines Developing an optimum engine is getting tricky now that the European Union has established a Stage V for off-highway engines, and the U.S. has not. What effect will this have on future engine designs?
2015-05-19
Magazine
Getting greener To meet upcoming fuel economy and emissions regulations, the developmental homogeneous charge compression ignition (HCCI) engine shows promise, but pursuit of more conventional engine technologies may be the better path. Highlights of Baja SAEINDIA The 2015 event, the 8th edition with the theme of Beyond Boundaries, was won by the College of Engineering, Pune. Rise of the underdogs Problem-plagued effort last year spurs Baja SAE team from VIT University of India to overhaul itself and its car. Testing reality in an increasingly complex design space Digital simulation tools have transformed the designing and testing of new aircraft, as well as the way they are manufactured and sustained.
2014-11-30
Magazine
Riding on a high Rudi Schurmans and Ben Patel head up Tenneco's suspension and clean air divisions. Ian Adcock discovers what the automotive future holds for them Driverless revolution has begun! Breakthrough Photonic radar promises greater accuracy at lower cost, Ian Adcock discovers Winds of change are here Simulating aerodynamics will make a step-change in vehicle design, as Stephen Remondi, President and CEO of EXA, explains to Ian Adcock
2014-04-01
Magazine
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.
2014-03-05
Magazine
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.
2011-09-01
Magazine
The man challenges of Tier 4 engineering Cutting and controlling emissions are the surface goals, but designers must also manage to cut and control costs, while adding complexity. A cool look at heat protection CFD is used to predict flow and thermal fields within the engine compartment both at steady state and transient conditions. Hushing hydraulics Researchers from the Georgia Institute of Technology put their energies into novel, compact devices for reducing fluid-borne noise.
2006-09-01
Magazine
Integration helps fuel push for conservation As rising fuel prices and looming environmental regulations bring fuel economy to the fore, hydraulic system developers are pitching in to improve efficiency and help conserve precious resources. Simulating hydraulic valve pressure drop CFD software is being used more and more frequently during the design of off-highway systems and components. 2006 Commercial Vehicle Congress Preview International Truck and Engine executives head the charge for "positive industry change" at SAE's third Congress for the on-and off-highway communities. Position sensing in machine controls As performance requirements for off-highway equipment become more demanding, the need for greater control of motion and power grows as well.
2004-07-01
Magazine
The need for speeds The recent automatic-transmission introductions by Toyota, DaimlerChrysler, and ZF highlight the trend toward greater gear-ratio spreads for better launch performance and cruising efficiency. Mechanical advantage Ride and handling can be influenced and controlled by the latest electronics, but careful mechanical design of the suspension can deliver significant benefits. Hard drives Driven by the insatiable demand for more usable navigation information and entertainment content, automotive disk drives will become commonplace, but not until cost and other issues are overcome, experts predict. Trucks get aerodynamic touch Light truck and SUV designers must reconcile conservative customer tastes with the need for reduced drag to bost efficiency. Pedestrian protection possibilities Carmakers consider a variety of solutions to the problem of saving lives outside the vehicle.
2004-06-01
Magazine
Showing how it's done Engineers are using software to better manage product development data, and applying tools to a new class of problems. NASA goes deep The agency's new long-term space exploration program starts with a return to the moon and will ultimately enable future exploration of Mars and other solar system destinations. Farnborough preview In an event that happens just once every two years, bringing the multitudes together, it is important to get as much technology as possible into the open and to find solutions to hard problems. Seats under crash loading The FAA and academia have conducted aircraft seat drop tests to compare and contrast passenger crash protection. A fluid approach Aerospace engineers have started using CFD software earlier and earlier in the design process.
2004-01-01
Magazine
Toward safer skies The mechanical safety of aircraft has made great strides over the years, allowing some engineers to focus on other aspects of flight safety. CFD in space Computational fluid dynamics provided a powerful tool in protecting astronauts on the ISS from CO2. Simulating safety Bombardier Aerospace simulates airflow in nacelles to prevent engine foreign-object damage.
2002-06-01
Magazine
The history and future of two-stroke engines While supporters of two-stroke engines emphasize their advantages, naysayers have for years been predicting the death of the little engine that could. Active suspension systems Engineers from Birrana have designed a load-sensing system for mining trucks and haulers that reduces torsional, vibration, and shock loads on a vehicle's structure. CFD simulations inside hydraulic valves Engineers from HUSCO studied the forces induced by oil flow on hydraulic valve actuators with the aim of minimizing their effects. Electronic control for transmissions A third-generation transmission electronic control system developed by Allison primarily for mobile equipment applications will be phased into all of its off-highway transmissions.
1992-06-01
Magazine
The world of regional jets Commonality and a family approach are characteristic of the latest regional jets developed or under development by Fairchild Dornier, Bombardier, and Embraer.
1969-04-01
Magazine
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