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Training / Education
2015-06-26
Most muffler design in the automotive industry is accomplished by using "cut-and-try" methods that rely on what has worked in the past and/or extensive full-scale testing on engines for validation. New computer software aimed at muffler design can shorten the design cycle and yield more effective results. This four hour seminar provides an introduction to the behavior of mufflers and silencers including a description of the two-port approach to muffler design. This seminar covers the acoustic simulation of muffler and silencer systems and the use of experimental methods to measure muffler performance.
Event
2014-11-19
Discuss and demonstrate the advances in Man Wearable AR/VR systems that have been under development at Lockheed Martin. The trials and successes of designing, prototyping and manufacturing plastic Asymmetric lens for AR displays that provide Wide Field of views using COTS displays. The second display takes advantage of a specially designed Fresnel lens set to create a 170 degree VR display. These display systems designs are focused on Military Training requirements but should not be limited in their use.
Event
2014-11-19
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2014-11-19
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2014-11-19
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2014-11-19
Workflow knowledge comprises both explicit, verbalizable knowledge and implicit knowledge, which is acquired through practice. Learning a complex workflow therefore benefits from training with a permanent corrective. Augmented Reality manuals that display instructive step-by-step information directly into the user's field of view provide an intuitive and provably effective learning environment.
Event
2014-11-19
Standard paper or electronic forms of work instructions have been used to standardize manual processes since the first days of manufacturing, and are still in wide use today in factories around the world. As augmented reality (AR) technology has continued to advance at a rapid pace, it is opening new doors to drive higher levels of quality, productivity, and training efficiency into worldwide manufacturing processes through its unique ability to place the right information, at the right place, and at the right time.
Event
2014-11-18
Virtual Reality systems are quickly hitting the consumer market at a significantly reduced price point. This will have an impact across many industries, including the mobility market. More than just a reduced cost implication, we will examine the benefits the newly accessible technology will have on everyday operations where usage will be at the desk and in the field versus the lab, product design where lower-cost technology does not compromise quality, and hands-on employee training that can be conducted in boundaryless classrooms.
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2014-11-18
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2014-11-18
Event
2014-10-20
The spectrum of papers solicited for this session reflect the truly multi-disciplinary nature of the field of Multi-Dimensional Engine Modeling. The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling. This includes advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.
Event
2014-10-20
The spectrum of papers solicited for this session reflect the truly multi-disciplinary nature of the field of Multi-Dimensional Engine Modeling. The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling. This includes advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.
Event
2014-10-20
The spectrum of papers solicited for this session reflect the truly multi-disciplinary nature of the field of Multi-Dimensional Engine Modeling. The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling. This includes advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.
Technical Paper
2014-10-13
Arash Hamzehloo, Pavlos Aleiferis
International obligations to reduce carbon dioxide emissions and requirements to strengthen security of fuel supply, indicate a need to diversify towards the use of cleaner and more sustainable fuels. Hydrogen has been recommended as an encouraging gaseous fuel for future road transportation since with reasonable modifications it can be burned in conventional internal combustion engines without producing carbon-based tailpipe emissions. Direct injection of hydrogen into the combustion chamber can be more preferable than port fuel injection since it offers advantages of higher volumetric efficiency and can eliminate abnormal combustion phenomena such as backfiring. The current work applied a fully implicit coupled computational methodology along with Reynolds-Averaged Navier-Stokes (RANS) technique in order to study the mixture formation and combustion in a direct-injection spark-ignition engine with hydrogen fuelling. Hydrogen was issues into the combustion chamber by a six-hole side-mounted injector.
Technical Paper
2014-10-13
Karthik Puduppakkam, Chitralkumar Naik, Ellen Meeks, Christian Krenn, Roswitha Kroiss, Johannes Gelbmann, Guenther Pessl
An important goal for CFD simulation in engine design is to be able to predict the combustion behavior as operating conditions are varied and as hardware is modified. Such predictive capability allows virtual prototyping and optimization of design parameters. For low-temperature combustion conditions, such as with high rates of exhaust-gas recirculation, reliable and accurate predictions have been elusive. Soot has been particularly difficult to predict, due to the dependence of soot formation on the fuel composition and the kinetics detail of the fuel combustion. Soot evolution in diesel engines is impacted by fuel and chemistry effects, as well as by spray dynamics and turbulence. In this work, we present a systematic approach to accurately simulate combustion and emissions in a high-performance BMW diesel engine. This approach has been tested and validated against experimental data for a wide range of operating conditions. Nine operating conditions have been modeled that span engine loads of 3-21 bar MEP, engine speeds of 1000-4400 rpm and external EGR of 0-38%.
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