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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
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
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.
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2014-11-19
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2014-11-19
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2014-11-19
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2014-11-19
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2014-11-18
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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
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2014-10-21
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
2014-10-21
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
Fabrizio Bonatesta, Salvatore La Rocca, Edward Hopkins, Daniel Bell
Gasoline Direct Injection engines, even in their latest generation, are an important source of ultra-fine particulate matter. The ever more stringent emission regulations across the globe, along with the renewed medical evidence of the adverse impact on human health, indicate further research is needed to improve design and control of the GDI technology, with the aim of reducing PM emissions. Commonly, two phenomena are reported as the most important sources of soot formation in GDI engines: the inherent poor fuel-air mixture preparation; the interaction between high-velocity fuel spray and combustion chamber walls. Computational Fluid Dynamics modelling is a cost-effective alternative to testing and, if appropriately configured, may offer useful insight into the details of fuel spray and mixture preparation. Given the acknowledged connection between combustion and soot formation processes, CFD modelling may also lead to improved understanding useful for the optimization of combustion control strategies specifically designed to minimise engine-out soot emissions.
Technical Paper
2014-10-13
Lukasz Grabowski
The research on the project to develop a new type of gyroplane required a special gyroplane powertrain to be developed. To meet special research requirements, the correct cooling of a drive unit is particularly important so this paper puts a focus just on the issues of gyroplane powertrain cooling. The Rotax 912S engine was selected as a drive unit following a detailed analysis. A one-dimensional model, simulated with the AVL Boost software, was applied to determine the heat balance for this engine and heat flux penetrating through each engine surface. The geometrical quantities defined in the model were obtained by measuring a three-dimensional geometry provided by an authorized Rotax engine supplier company. It has been shown that 6 kW is absorbed by a direct cooling cylinder, 28 kW by indirect cooling heads and the rest of heat is absorbed by engine oil, the heat due to friction in connecting rod bearing and camshaft bearing and the friction between piston rings and a cylinder surface.
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.
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