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2015-12-14 ...
  • December 14-17, 2015 (3 Sessions) - Live Online
Training / Education Online Web Seminars
Design Review Based on Failure Modes (DRBFM) is a methodology focused on change management and continuous improvement. It centers on early prevention and engineering knowledge, eliminating time spent debating ranking systems, waiting for lead engineers to document and list their concerns, identifying what types of concerns are open for discussion and resolution, and brainstorming without any actionable closure. This web seminar will explain all phases of the DRBFM methodology and provide details on how to accomplish the specific steps.
2015-10-22 ...
  • October 22-23, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Engines can and do experience failures in the field in a variety of equipment, vehicles, and applications. On occasion, a single vehicle type or equipment family will even experience multiple engine failures leading to the inevitable need to determine what the most likely cause of one or all of those failures was. This comprehensive seminar introduces participants to the methods and techniques used to determine the most likely cause of an individual engine or group of engine failures in the field.
2015-10-19 ...
  • October 19-30, 2015 (6 Sessions) - Live Online
Training / Education Online Web Seminars
Finite Element Analysis (FEA) has been used by engineers as a design tool in new product development since the early 1990's. Until recently, most FEA applications have been limited to static analysis due to the cost and complexity of advanced types of analyses. Progress in the commercial FEA software and in computing hardware has now made it practical to use advanced types as an everyday design tool of design engineers. In addition, competitive pressures and quality requirements demand a more in-depth understanding of product behavior under real life loading conditions.
2015-09-22
Book
Samir Khan, Chris Hockley, Paul Phillips, Ian K. Jennions
Today, we are all strongly dependent on the correct functioning of technical systems. They fail, and we become vulnerable. Disruptions due to degradation or anomalous behavior can negatively impact safety, operations, and brand name, reducing the profitability of all elements of the value chain. This can be tolerated if the link between cause and effect is understood and remedied. Anomalous behavior, which indicates systems or subsystems not acting in accordance with design intent, is a much more serious problem. It includes unwanted system responses and faults whose root cause can’t be properly diagnosed, leading to costly, and sometimes unnecessary, component replacements. The title No Fault Found: The Search for the Root Cause was developed to propose solutions to this technical and business challenge, which has become less and less acceptable to the commercial aviation industry globally.
2015-09-22
Event
In order to derive physics based models for diagnostic or prognostic use, a good engineering understanding of the Physics of Failure is needed. Whether the component in question is electrical, mechanical, hydraulic or electronic, successfully capturing the relevant degradation parameters in a meaningful way is key to success. This session invites participants to share their knowledge of the degradation process through modelling, and how it can be put to use in health management algorithms.
2015-09-16 ...
  • September 16-October 2, 2015 (6 Sessions) - Live Online
Training / Education Online Web Seminars
Failure Modes and Effects Analysis (FMEA) is an integral part of product design activity applicable to any type of product or service. It is a quantitative and quantitative step-by-step approach for identifying and analyzing all actual and potential points of failure in a design, product or service. A successful team-based FMEA activity can use their collective experience with similar products to dramatically improve not only product performance but also reduce manufacturing issues at both a component and system and processing level. This web seminar introduces the five basic types of FMEAs with emphasis on constructing a Design FMEA.
2015-09-14 ...
  • September 14-25, 2015 (6 Sessions) - Live Online
Training / Education Online Web Seminars
The Finite Element Analysis (FEA) has been widely implemented by automotive companies and is used by design engineers as a tool during the product development process. Design engineers analyze their own designs while they are still in the form of easily modifiable CAD models to allow for quick turnaround times and to ensure prompt implementation of analysis results in the design process.
2015-09-06
Technical Paper
2015-24-2392
Vincenzo De Bellis, Luigi Teodosio, Daniela Siano, Fabrizio Minarelli, Diego Cacciatore
In this paper, a high performance V12 spark-ignition engine is experimentally investigated at test-bench in order to fully characterize its behavior in terms of both average and cycle-by-cycle performance parameters, for different operating conditions. In particular, for each considered point, a spark advance sweep is actuated, starting from a knock-free calibration, up to intense knock operation. Trains of 300 consecutive pressure cycles are acquired for each of the 12 cylinders, together with the main overall engine performance, including air flow, fuel flow, torque, pollutant emissions, and fuel consumption. Acquired data are statistically analyzed to derive the distributions of main indicated parameters (combustion phasing and duration, Indicated Mean Effective Pressure - IMEP, etc.) in order to find proper correlation with averaged quantities, collecting the findings of all the considered operating points and all the cylinders.
2015-09-06
Technical Paper
2015-24-2467
Alessandro Ferrari, Federica Paolicelli
The modal analysis of a Common Rail fuel injection system equipped with solenoid injectors of the latest generation has been performed in the frequency domain. A complete lumped parameter model of the high-pressure hydraulic circuit from the pump delivery to the injector nozzles has been realized and validated by comparison with the frequency modal values obtained by applying a peak-picking technique to the measured pressure time history. Three main modal motions have been identified in the considered injection apparatus and the possible resonances with the external forcing terms, i.e., pump delivered flow-rate, pressure control valve discharged flow-rate and flow-rates expelled by the solenoid injector, have been highlighted and discussed. Furthermore, a sensitivity analysis of the frequency domain performance to key geometrical features of the high-pressure system layout has been carried out.
2015-09-06
Technical Paper
2015-24-2506
Paolo Iodice, Adolfo Senatore
Nowadays, due to catalyst improvements and electronic mixture control of last generation vehicles equipped with internal combustion engine, the most significant part of the total emissions of carbon monoxide and unburned hydrocarbons takes place during the cold phase, if compared with those exhausted in hot conditions, with a clear consequence on air quality of urban contexts. The purpose of this research, developed by the Department of Industrial Engineering of the University of Naples Federico II with reference to an European background, is a deeper analysis of the engine and after-treatment system behaviour within the cold start transient and the evaluation of cold start additional emissions: a methodology was developed and optimized to evaluate the cold transient duration, the emitted quantities during the cold phase and the relevant time-dependence function.
2015-09-06
Technical Paper
2015-24-2519
Richard Cornwell, Huntly Thomas, Joshua Dalby, Phil Carden, Brian Knight, Andrew Ward, Grace Carr
Fuel consumption, and the physical behaviours behind it, have never been of greater interest to the automotive engineering community. The enormous design, development and infrastructure investment involved with a new engine family which will be in production for many years demands significant review of the base engine fundamental architecture. Future CO2 challenges are pushing car manufacturers to consider alternative engine configurations. As a result, a wide range of diesel engine architectures are available in production particularly in the 1.4 to 1.6L passenger car market, including cylinder size, number of valves per cylinder, and bore:stroke ratio. In addition, the 3 cylinder engine has recently entered the market, despite its historic NVH concerns. Ricardo has performed a generic architecture study for a midsize displacement engine in order to assess the pros and cons of each engine configuration.
2015-09-06
Technical Paper
2015-24-2499
Fabio Berni, Sebastiano Breda, Alessandro D'Adamo, Stefano Fontanesi, Giuseppe Cantore
A new generation of highly downsized SI engines with specific power outputs around or above 150 HP/liter is emerging in the sport car market sector. Technologies such as high-boosting, direct injection and downsizing are adopted to increase power density and reduce fuel consumption. To counterbalance the increased risks of pre-ignition, knock or mega-knock, currently made turbocharged SI engines usually operate with high fuel enrichments and delayed (sometimes negative) spark advances. The former is responsible for high fuel consumption levels, while the latter induce an even lower A/F ratio (below 11), to limit the turbine inlet temperature, with huge negative effects on BSFC. A possible solution to increase knock resistance is investigated in the paper by means of 3D-CFD analyses: water/methanol emulsion is port-fuel injected to replace mixture enrichment while preserving, if not improving, indicated mean effective pressure and knock safety margins.
2015-09-06
Technical Paper
2015-24-2498
Markku Aaro Kuronen, Ulla Kiiski, Kalle Lehto
Sulphur level of diesel fuel started to be limited in Europe at the end the 19th century. Quite soon it was noticed that the processes for removing sulphur also removed other polar material and the natural lubricity of the diesel fuel was lost. Lubricity additives were introduced to bring the lubricity back to a certain level. Also, a rapid laboratory method was developed to measure lubricity i.e. High Frequency Reciprocating Rig (HFRR). The method (HFRR) ISO 12156-1 was introduced in 1997. In recent years purely paraffinic diesel fuels, such as GTL (Gas To Liquid) and renewable HVO (Hydrotreated Vegetable Oil), have been introduced to the market. Unlike traditional biodiesel (FAME, Fatty Acid Methyl Ester), paraffinic diesel fuels require the use of lubricity additives to reach a sufficient level of lubricity. The aim of this study was to investigate how the current lubricity additives work as a function of aromatic content in diesel.
2015-09-06
Technical Paper
2015-24-2480
Lucio Postrioti, Maurizio Bosi, Andrea Cavicchi, Fakhry AbuZahra, Rita Di Gioia, Giovanni Bonandrini
Direct Injection technology for Spark Ignition engines is currently undergoing a significant development process in order to achieve its complete potential in terms of fuel conversion efficiency while preserving the achievement of future, stringent emission limits. In this process, improving the fuel spray analysis capabilities is of primary importance. Among the available experimental techniques, the momentum flux measurement is one of the most interesting approaches as it allows a direct measurement of the spray-air mixing potential and hence it is currently considered an interesting complement to spray imaging and Phase Doppler Anemometry. The aim of the present paper is to investigate the fuel spray evolution when it undergoes flash boiling, a peculiar flow condition occurring when the ambient pressure in which the spray evolves is below the saturation pressure of the injected fluid.
2015-09-06
Technical Paper
2015-24-2501
Thomas Laible, Stefan Pischinger, Bastian Holderbaum
Today’s and future stringent emission limits require the use of exhaust gas aftertreatment technologies. In terms of legislation, the emissions at low engine load and at the cold start increasingly gain attention. At the Institute for Internal Combustion Engines RWTH Aachen University, different measures for rising the temperature concerning exhaust gas aftertreatment components on both the passenger car and the industrial / commercial vehicle engine. The proposed study of the passenger car diesel engine has shown the potential of internal and external heating measures. The configuration consisting of NSC and DPF, illustrates the potential of electrically heated NSC, including solutions on how the emission limit for EU6 can be achieved.
2015-09-06
Technical Paper
2015-24-2530
Mohamed El Morsy, Gabriela Achtenova
A vehicle gearbox serves for torque and speed conversion with help of rotating elements. Therefor the gearbox experiences periodic excitation forces with a fundamental frequency following the rotation frequency. These excitation forces give rise to corresponding periodic response signals, i.e. signals having content at the fundamental (rotational) frequency and its harmonics. Order analysis is an analysis technique which is used to extract these harmonic orders from the response signals. This article intends to use the order tracking analysis for gearbox fault diagnosis under variable speed conditions to compare between healthy and faulty cases by using order extraction. Finally, determine maximum Root Mean Square (RMS) as severity index.
2015-09-06
Technical Paper
2015-24-2430
Cristiano Pecollo, Andrej Poredos, Peter Tibaut, Dario Infanti, Giuseppe Falleti, Francesco Pascuzzi
Significant effort is being spent to improve the power performance and fuel economy of spark ignited engines. As the loading capability of IC engines increases, the thermal and mechanical load increase rapidly. Another aspect is that the amount of CO2 emissions per energy unit is relatively high from fossil fuels. Obviously, this is not desirable from the global climate perspective and has to be reduced. One efficient way of reducing these emissions would be to replace fossil fuels with other fuels, such as biofuels. Another way is to find ways to increase the efficiency of the current IC engines, leading to less CO2 emission for each unit volume of fuel. One of the most important fields related to this objective is heat transfer analysis. From the heat transfer perspective it is of interest to reduce the heat losses in the engine in an attempt to achieve higher mechanical work output.
2015-09-06
Technical Paper
2015-24-2451
Isaac Ekoto, Brian Peterson, James Szybist, William Northrop
Low-temperature gasoline combustion (LTGC) systems have recognized ability to improve fuel economy through unthrottled operation and volumetric combustion. Furthermore, the combination of dilute mixtures and low combustion temperatures result in low nitrogen oxide engine-out emissions. The principal challenge for LTGC systems is achieving ignition phasing control needed to reach stable engine performance over a wide operating regime. Negative valve overlap (NVO) is a viable control strategy that enables LTGC at low loads. The NVO strategy improves main combustion stability through the combination of two mechanisms: (1) a thermal mechanism from NVO period heat release that elevates intake charge temperatures and (2) a chemical mechanism that enhances charge reactivity via NVO period parent fuel reforming. It is unclear, however, what the relative benefit of each mechanism is in terms of overall thermal efficiency.
2015-09-06
Technical Paper
2015-24-2502
Yujun Liao, Panayotis Dimopoulos Eggenschwiler, Alexander Spiteri, Lorenzo Nocivelli, Gianluca Montenegro, Konstantinos Boulouchos
The injection process of urea-water solution (AdBlue) determines initial conditions for reactions and catalysis and is fundamentally responsible for optimal operation of selective catalytic reduction (SCR) systems. The spray characteristics of four, commercially available, injectors (one air-assisted and three pressure-driven with different nozzle-hole configurations) are investigated with non-intrusive measuring techniques. Injection occurred in the crossflow of a channel blowing preheated air in an exhaust duct similar configuration. The effect of several gas temperatures and flows on the spray propagation and entrainment has been extensively studied by shadow imaging. Shadow images, in addition, show that the spray of the pressure-driven injectors is only marginally affected by the gas crossflow. In contrast, the air assisted spray is strongly deflected by the gas, the effect increasing with increasing gas flow.
2015-08-19 ...
  • August 19-20, 2015 (8:30 a.m. - 4:30 p.m.) - Rosemont, Illinois
  • November 23-24, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Failure Mode and Effects Analysis (FMEA) is a systematic method for preventing failure through the discovery and mitigation of potential failure modes and their cause mechanisms. Actions are developed in a team environment and address each high: severity, occurrence or detection ranking indicated by the analysis. Completed FMEA actions result in improved product performance, reduced warranty and increased product quality.
2015-08-10 ...
  • August 10-12, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • December 9-11, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
RMS (Reliability-Maintainability-Safety-Supportability) engineering is emerging as the newest discipline in product development due to new credible, accurate, quantitative methods. Weibull Analysis is foremost among these new tools. New and advanced Weibull techniques are a significant improvement over the original Weibull approach. This workshop, originally developed by Dr. Bob Abernethy, presents special methods developed for these data problems, such as Weibayes, with actual case studies in addition to the latest techniques in SuperSMITH® Weibull for risk forecasts with renewal and optimal component replacement.
2015-06-30
Standard
J2944_201506
This Recommended Practice, Operational Definitions of Driving Performance Measures and Statistics, provides functional definitions of and guidance for performance measures and statistics concerned with driving on roadways. As a consequence, measurements and statistics will be calculated and reported in a consistent manner in SAE and ISO standards, journal articles proceedings papers, technical reports, and presentations so that the procedures and results can be more readily compared. Only measures and statistics pertaining to driver/vehicle responses that affect the lateral and longitudinal positioning of a road vehicle are currently provided in this document. Measures and statistics covering other aspects of driving performance may be included in future editions. For eye glance-related measures and statistics, see SAE J2396 (Society of Automotive Engineers, 2007) and ISO 15007-1 (International Standards Organization, 2002).
2015-06-25
Event
This session is dedicated to the tools and methodology involved in identifying, calculating and modifying various noise and vibration sources and paths in vehicles, aircraft and various consumer products and assist in the design and validation of noise and vibration targets
2015-06-24
Event
Frequency analysis is often referred to as Fourier analysis but is that really true? The foundation is based on stationary and "Fourier signals." What happens if that is not the case? Modern FFT signal analyzers use very sparse sampling that is correct according to Shannon but what will happen when using time domain analysis. Many of the myths and frequent questions will be answered using a "user perspective" and rules of thumb will be given together with good methods to avoid large errors.
2015-06-24
Event
This session provides a good overview of recent innovations to SEA modeling techniques. SEA models can be used alone or together with hybrid analytical or experimental techniques to establish good comparative NVH predictions at the earliest stage of the vehicle design process. The papers of this session will describe recent advances and / or validations of SEA theory, applications, or use in conjunction with hybrid techniques for high- and mid-frequency NVH predictions.
2015-06-24
Event
This session covers subjective testing and analysis related to automotive noise and vibration, usually referred to as sound quality and vibration quality. The focus is on both subjective and objective tools and methods that can be used either to design sound or vibration quality into the automotive product, or to characterize and eliminate undesired sounds or vibrations.
2015-06-24
Event
This session covers subjective testing and analysis related to automotive noise and vibration, usually referred to as sound quality and vibration quality. The focus is on both subjective and objective tools and methods that can be used either to design sound or vibration quality into the automotive product, or to characterize and eliminate undesired sounds or vibrations.
2015-06-23
Event
This session covers the relationships between vibration and noise that can be generated throughout the vehicle. Included in this session are modal vibration studies related to noise, vibration transfer paths throughout the vehicle, and coupling of vibration and acoustical modes. Both experimental and analytical approaches are included in this session.
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