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Viewing 1 to 30 of 15340
2015-09-21 ...
  • September 21, 2015 (8:30 a.m. - 4:30 p.m.) - Seattle, Washington
Training / Education Classroom Seminars
The September offering of this seminar is held in conjunction with the SAE 2015 AeroTech Congress & Exhibition. Register for this offering and you can register to attend the SAE 2015 AeroTech Congress & Exhibition for 25% off the classic member event rate. Please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for SAE 2015 AeroTech Congress & Exhibition at this special rate.
2015-08-05 ...
  • August 5, 2015 (8:30 a.m. - 4:30 p.m.) - Tysons, Virginia
Training / Education Classroom Seminars
Counterfeit electronic parts have been found in almost every sector of the electronics industry and continue to be an increasing threat to electronic hardware. This threat poses significant performance, reliability and safety risks. Aerospace industry organizations, in particular, must produce and continually improve safe and reliable products that meet or exceed customer and regulatory authority requirements.
2015-08-03 ...
  • August 3-4, 2015 (8:30 a.m. - 4:30 p.m.) - Tysons, Virginia
Training / Education Classroom Seminars
Through the years there has been a significant and increasing volume of fraudulent and counterfeit electronic parts entering the aerospace supply chain. Left undetected, these parts can pose significant performance, reliability, and safety risks. In response to these threats, the SAE AS6081 Counterfeit Electronic Parts Avoidance – Distributors standard was developed to provide uniform requirements, practices, and methods to mitigate the risk of electronics distributors purchasing and supplying these counterfeit electronic parts throughout the aerospace supply chain.
2015-05-10 ...
  • May 10, 2015 (1:30 p.m. - 5:30 p.m.) - Charleston, South Carolina
Training / Education Classroom Seminars
SAE International is pleased to offer this professional development seminar in conjunction with the SAE A-6 Aerospace Actuation, Control and Fluid Power Systems Committee meeting May 10 - 14, 2015 in Charleston, South Carolina. This four hour short course intends to present an overview of seals and sealing system design for military and commercial aircraft.
2015-05-04 ...
  • May 4-5, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • September 21-22, 2015 (8:30 a.m. - 4:30 p.m.) - Seattle, Washington
Training / Education Classroom Seminars
The September offering of this seminar is held in conjunction with the SAE 2015 AeroTech Congress & Exhibition. Register for this offering and you can register to attend the SAE 2015 AeroTech Congress & Exhibition for 25% off the classic member event rate. Please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for SAE 2015 AeroTech Congress & Exhibition at this special rate. The requirements for producing an FAA approved replacement part can be daunting.
2015-04-20 ...
  • April 20-21, 2015 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • August 3-4, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • December 14-15, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Attendees to the seminars held in conjunction with the SAE 2015 World Congress will receive COMPLETE access to Congress activities for only $55 per day. If interested, please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for this special Congress daily rate. This seminar introduces participants to all aspects of threaded fasteners including nomenclature, geometric considerations, metallurgy, material properties, applied stresses, and considerations for fatigue, corrosion, brittle fracture and temperature.
2015-04-14
Technical Paper
2015-01-1371
Samuel T. Bartlett
With the many model variations produced on the same production line because of increasing power train options, fuel efficiency targets, performance and customer demands we saw limitations with our existing suspension mount equipment. Layout options were limited due to guided shifts and transfers. Large supporting frame work took up valuable floor space. Model wheelbase sizes and suspension pallets were limited to the model requirements of the original equipment. We needed an adaptable system to install the engine/front suspension assemblies and the rear suspension assemblies. We found a solution by utilizing the capabilities of 6-axis industrial robots to make the core components of the equipment simpler; many of the functions of a traditional machine can now be accomplished by the robot. We were able to vary install position to optimize handling characteristics and accommodate the model-to-model varieties on the same production line.
2015-04-14
Technical Paper
2015-01-0600
Marc Rosenbaum
A new generation of 3D inspection machines is now available to verify in line 3D dimensional conformity of complex parts – especially Powertrain ones – with accuracy down to 0.1 µm within manufacturing cycle time of large series. Inspecting in line 100% of production with an accuracy and at speed compatible with the most demanding part accuracy and fastest cycle time is presently already a reality for some large tier1 suppliers in Europe. Purpose of this paper is to introduce this breakthrough technology using state of the art non contact sensing technology allied with innovative mechanics and the latest developments in 3D metrology software
2015-04-14
Technical Paper
2015-01-1740
Kelsie S. Richmond, Stephen Henry, Russell Richmond, David Belton
Gasket materials are utilized for various different types of high temperature testing to prevent leaking at bolted joints. In particular, the automotive test services field uses flanged-gasket bolted exhaust joints to provide a convenient method for installation & removal of exhaust components like catalytic converters for aging, performance testing, etc. Recent improvements in the catalyst aging methods require flanged-gasket joints that can withstand exhaust temperatures as high as 1200°C. Gasket materials previously used in these applications like the graphite based gasket materials have exhibited physical breakdowns, severe leakage, and general thermal failures under these extreme temperatures. In order to prevent these leaks, metal-reinforced gasket materials in a number of configurations were introduced to these extreme temperature environments to evaluate their robustness to these temperatures.
2015-04-14
Technical Paper
2015-01-0669
Nagarjun Jawahar, Saharash Khare
Automotive OEM’s are looking for innovative solutions to capture the possible failure due to warpage and shrinkage of an insert molded part through virtual simulations with help of FEA tools, thereby saving the mold cost, material cost and time. This work demonstrates an approach to study and simulate the failure of an insert molded part which happened after few days of the part molding under idle condition. To simulate the above failure, an innovative approach coupling Moldflow and Abaqus software was derived. First, a flow simulation including phase change of plastic material was carried out with derived parameters, results of which were exported as input to the Abaqus structural solver. Secondly, a thermo-mechanical analysis of the model was then carried out considering the thermal and moisture effect on material property. A good correlation was achieved between the actual failure location and max stress location as predicted by said coupled approach.
2015-04-14
Technical Paper
2015-01-1174
Nobuhiko Nakagaki
We have developed four completely new parts for fuel cell vehicles. They are called separator, stack manifold, ion exchanger, silencer. The separator is a pressed metal plate sandwiched between the MEA(Membrane Electrode Assembly) ,and it has a flow path of hydrogen, air and coolant. The separator we have developed is anode separator. It has hydrogen flow paths on one side, and cooling liquid flow paths on the other side. The pitch of flow paths is very fine, it improve the uniformity of the gas flow and uniformity of the surface pressure on the MEA, therefore, it have contributed to improve the power generation performance. Also since nearly 400 separators are stacked up for one Fuel Cell Stack, it has to be very accurate. We have succeeded in the mass production of the separator by applying a precision press technology. Stack manifold is a component that attaches to the end of one side of the fuel cell stack. It is a component that integrates end plate and pipes.
2015-04-14
Technical Paper
2015-01-0785
Dockoon Yoo, Jihun Song, Yeongchu Kim, Wook Jung, Duksang Kim
A 2.4L ULPC(Ultra Low PM Combustion) diesel engine was achieved through optimal matching with piston bowl geometry and nozzle spray angle that significantly reduces the amount of engine out soot created during combustion. This engine complies with US Tier 4 final regulation without DPF(only DOC) which was developed for off-road applications such as skid-loader, forklift and construction equipment. Improvement in fuel consumption of diesel engine for off-road applications and construction equipment which are operating continuously for a long time at high load conditions will be very important for lowering operating costs. This paper explains a detailed review of improvement BSFC of 2.4L ULPC diesel engine by optimizing the combustion system with swirl ratio, nozzle flow rate and piston bowl geometry while maintaining non-DPF solution.
2015-04-14
Technical Paper
2015-01-0718
G Karthik, K V Balaji, Bathiry Sivaraman, Deshpande Samar
This paper describes about Vinyl ester based SMC (Sheet molding composite) material for Oil Sump part in automotive application. This Sheet moulding composite is a ready to mould glass-fibre reinforced vinyl ester material primarily used in compression moulding process. This vinyl ester resin is compounded with glass fibre to meet the product functional requirements. This Oil sump part is the structural under bonnet component which main purpose is to form the bottommost part of the crankcase and to contain the engine oil before and after it has been circulated through the engine. Generally, metal are most preferable material for this application. Here, Fibre filled Vinyl ester based thermoset resin (SMC) material has been explored which has excellent characteristics in terms of Tensile strength, Modulus, Impact strength, Dimensional stability, Chemical Resistance & High/Low temperature resistance which is suitable for Oil sump application.
2015-04-14
Technical Paper
2015-01-0867
Ashish Shah, Per Tunestal, Bengt Johansson
It has previously been shown by the authors that the pre-chamber ignition technique operating with fuel-rich pre-chamber combustion strategy is a very effective means of extending the lean limit of combustion with excess air in heavy duty natural gas engines in order to improve indicated efficiency and reduce emissions. This article presents a study of the influence of pre-chamber volume and nozzle diameter on the resultant ignition characteristics. The two parameters varied are the ratio of pre-chamber volume to engine’s clearance volume and the ratio of total area of connecting nozzle to the pre-chamber volume. Each parameter is varied in 3 steps hence forming a 3 by 3 test matrix. The experiments are performed on a single cylinder 2L engine fitted with a custom made pre-chamber capable of spark ignition, fuel injection and pressure measurement.
2015-04-14
Technical Paper
2015-01-0221
Soham Banerjee, Anand Ganesan, Sudharsan Sundaram, Kiran Jasti
The life of a two wheeler and its parts depends much on its usage during its years of running. The quality of its parts determines the life and the efficiency; however the handling of the two-wheeler also plays a major role in estimating the life and the other performance parameters of the two-wheeler. Hence it is beneficial to have an efficient system which enhances the life of a two-wheeler and gives better fuel efficiency. This paper describes an efficient drive pattern system which addresses the above. This system consists of two main parts, the data collection system and a software application which runs on a mobile phone. The data collection system collects data from various sensors present in the vehicle during the run time of the two-wheeler. The data is further processed and sent to the mobile phone of the driver.
2015-04-14
Technical Paper
2015-01-0520
Takaaki Kitahara, Takuo Imai, Osamu Ishigo, Miodrag Perovic
In recent years, there has been a requirement for automotive bearings materials to be free of the toxic material lead, in accordance with ELV regulations and from the perspective of environmental problems. Currently, bismuth is often used as a replacement for lead in copper alloy based main bearings and connecting rod bearings for automotive engines. Previous bismuth-containing copper alloy bearing materials have shown satisfactory seizure resistance, but conformability has not been as good as for lead-containing bearing materials. As a result, they have been successfully applied to automotive diesel engines, but not for truck engines where improved conformability is required to better accommodate irregularities such as foreign particles. To improve the conformability, a softer bearing material is desirable. Furthermore, in recent years bearing materials containing hard particles have been widely used with the improvement of seizure resistance and wear resistance.
2015-04-14
Technical Paper
2015-01-0527
Pierre-Olivier Santacreu, Guillaume Badinier, Jean-Benoit Moreau, Jean-Marc Herbelin
A new Ni-free martensitic stainless steel was developed for hot stamped automotive parts, especially in order to design lightweight chassis. After hot stamping simulation, the material exhibits 1.2 GPa ultimate tensile strength with 8% total elongation, in the as-quenched condition (without any tempering treatment). Moreover the material’s chemical composition was optimised to improve the ductility at low temperature and during high strain rate mechanical testing. As a result, no brittle fracture in impact testing at -40°C was observed, and a good behaviour in crash was recorded. To further assess the material’s performance, high cycle and low-cycle fatigue properties of the grade were characterized and the effects of machining and surface were studied. Results show that the fatigue limits at 2 million cycles for a stress ratio of -1 for rough bare surface and shot peened surface are quite high at 0.45 and 0.55 times the ultimate tensile strength (in the range of 540 MPa to 640 MPa).
2015-04-14
Technical Paper
2015-01-0596
Oliver Scholz, Nikolas Doerfler, Lars Seifert, Uwe Zöller
Rubber seals are used throughout the automobile for a variety of purposes, and the consequences of a failure of such a seal can range from annoying in case of an A/C component to catastrophic in the case of brake components. With the constantly increasing requirements for these components regarding e.g. pressure or new refrigerants comes the requirement for ensuring surface properties according to the specification of the application. While automatic inspection systems are available for a variety of problems, the area of seal inspection is still dominated by manual labor, partly because handling of these small, inexpensive parts is difficult and partly because visual coverage of the entire sealing surface poses a problem. It is also difficult for a human inspector to objectively assess whether or not a surface defect is critical or not, especially given that inspection of each seal must be completed within a few seconds.
2015-04-14
Technical Paper
2015-01-0235
Shiv Shankar Prasad, Jahangir Mansoori, Jin Seo Park
A vehicle horn is a sound-making device used to warn others of the approach of the vehicle or of its presence. Some countries require horns by law. Conventional Horns are electromechanical with steel diaphragm and electromagnet acting upon it. Switching of horn is performed by mechanical contact breaker assembly that repeatedly interrupts the current to the electromagnetic. Up-Down Movement of diaphragm with response to the current creates a sound wave across the horn. Conventional Horn faces the problem of wear and tear of mechanical contact and internal parts. Switching of contacts results in Arcing .There is no current and surge voltage protection for the coil of conventional horn. These problems of conventional system might be OK in the general markets. But in specific markets which are using horn frequently, these have to be considered as serious issues. Especially, horns are one of the most abusing parts of vehicle in India.
2015-04-14
Technical Paper
2015-01-1743
Tanmay Santra, Vikas Kumar Agarwal
An inadequate sealing of the combustion chamber gasket interface may have severe consequences on both the performance & emission of an engine. In this investigation, both the distribution of the contact pressure on the gasket and the stresses of the cylinder head at different loading conditions are explored and improved by modifying the design. A single cylinder gasoline engine cylinder head assembly has been analyzed by means of an uncoupled FEM simulation to find the sealing pressure of the multi-layer steel gasket (MLS), strength & deformation of the components involved. The thermal loads are computed separately from CFD simulations of cylinder head assembly. The cylinder head assembly consisting of head, block, liner, cam shaft holder, bolts, gaskets, valve guides & valve seats, is one of the most complicated sub-assembly of an IC engine.
2015-04-14
Technical Paper
2015-01-0692
Sylvain Calmels, Benoit Bidaine, Kurt Danielson
Most of the car makers show a clear interest in replacing metal with continuous carbon fiber composites to reach lightweighting targets while keeping or improving vehicle performance. Thanks to its complex heterogeneous microstructure, carbon fiber composites provide the best ratio mass/strength for this purpose, especially for crash objectives. One of the challenges when fully integrating this advanced material into a vehicle’s structure is accurately predicting its post-failure behavior to define the best optimized design. Simulations reach an efficient behavior prediction for crash performances when the simulation captures the correct dissipated energy and the associated damage not only globally but also locally. When using continuous carbon fiber composites, engineers must take into account the materials’ anisotropy in terms of stiffness, crack and damage propagation.
2015-04-14
Journal Article
2015-01-0529
Jody N. Hall, Jason Coryell, Bill Wendt, Donald Adamski
Several production parts have been randomly splitting from trimmed edges even at strains well below the forming limit and hole expansion capabilities of the material. These parts are all Dual Phase (DP) steel with one exception of a multiphase version of a DP980 grade. The fractures were not limited to a specific strength, supplier, or stamping plant. Each part was studied to determine the root cause of failure for each edge fracture and to document the solutions in appropriate standards and specifications. As typical for dual phase steel, the edge fractures involved a stretch condition. However, these fractures are unexpected at such low strains. This paper will review the importance of the trimmed edge condition that must be maintained to eliminate fractures at low strains. A comparison will be made between good and poor trim quality along with an updated specification for a good trimmed edge.
2015-04-14
Journal Article
2015-01-0601
Madhavan Manivannan, Vesselin Stoilov, Derek O. Northwood
Ferritic nitrocarburizing offers excellent wear, scuffing, corrosion and fatigue resistance by producing a thin compound layer containing ε (Fe2-3(C, N)), γ’ (Fe4N), cementite (Fe3C) and various alloy carbides and nitrides on the material surface. It is a widely accepted surface treatment process that results in smaller distortion than carburizing and carbonitriding processes. However this smaller distortion has to be further reduced to prevent the performance issues, out of tolerance distortion and post grinding work hours/cost in an automotive component. A numerical model has been developed to calculate the nitrogen and carbon composition profiles of SAE 1010 torque converter pistons during nitrocarburizing treatment. The nitrogen and carbon composition profiles are modeled against the part thickness and nitrocarburizing time to predict the distortion pattern.
2015-04-14
Journal Article
2015-01-0605
Guoyu Yang, Scott Kish
Abstract Heavy stamping parts of HSLA (high strength low alloy) steel are widely used in the automotive industry for design optimization. The material properties of the heavy stamping parts however, change during the stamping process, making simulation and analysis difficult. Traditional tensile tests, used to obtain the material properties, might not be applicable due to the size of specimens required. Without reliable material properties, it is very hard for FEA simulations to predict accurate results. A method for characterizing the material properties of a heavy stamped steel part was presented in this paper. Based on monotonic and fatigue test results, gathered in cooperation with The University of Toledo, we developed specific material models for strength and fatigue analysis. Instead of employing commercial fatigue analysis software, we can perform the fatigue life prediction by using traditional static analysis in ABAQUS with more accurate results.
2015-04-14
Technical Paper
2015-01-0949
Mathis Bode, Tobias Falkenstein, Vincent Le Chenadec, Seongwon Kang, Heinz Pitsch, Toshiyuki Arima, Hiroyoshi Taniguchi
Compared to conventional injection techniques, Gasoline Direct Injection (GDI) has a lot of advantages such as increased fuel efficiency, high power output and emissions levels, which can be more accurately controlled. Therefore, this technique is one of the major topics of today's injection system research. The performance of GDI systems depends on multiple physical processes. The internal flow and the mixing of the coherent liquid stream with the gaseous ambient environment are two examples. Studying these processes is very difficult due to the overall complexity and the involved small length and time scales. Especially the region just after exiting the nozzle, where the primary breakup occurs, is experimentally hardly accessible, but a clear understanding of this region is particularly important, because primary breakup affects multiple other physical processes.
2015-04-14
Technical Paper
2015-01-0948
Le (Emma) Zhao, Ahmed Abdul Moiz, Jeffrey Naber, Seong-Young Lee, Sam Barros, William Atkinson
Liquid spray breakup and atomization, two multi-phase phenomena, strongly affect the ignition and combustion processes. High-speed jet-to-jet impingement in water sprays could be an effective phenomenon for the spray propagation and droplet vaporization. To achieve higher vaporization efficiency, impingement from two-hole nozzles is analyzed in this paper. This paper focuses on investigating vaporization mechanism as a function of the impingement location and the collision breakup process provided by two-hole impinging jet nozzles. CFD (Computational Fluid Dynamics) is adopted to do simulation. Lagrangian model is used to predict jet-to-jet impingement and droplet breakup conditions while KH-RT breakup and O’Rourke collision models are implemented for the simulation.
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