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2017-04-04
Event
This technical session focuses on fundamental and applied research that lowers frictional energy losses and enhances reliability and durability of automotive components. The topics include, but not limited to engine and drivetrain tribology, seals, bearing and gear lubrication, materials tribology, surface engineering, lubricants and additives, computer-aided tribology, tribotesting, as well as friction, wear and lubrication fundamentals.
2016-12-01 ...
  • December 1-2, 2016 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
SAE International is pleased to announce that this course will also be offered in London UK at IMechE, One Birdcage Walk, SW1H9JJ during the week of June 6th through June 10th. The SAE Europe Aerospace Training Week is a series of courses designed especially for the aerospace engineer. For additional information about this course, others and to register, please visit http://sae-europe.org/aerospace-training-week-june-2016-london/#programme. The requirements for producing an FAA approved replacement part can be daunting.
2016-10-17
Technical Paper
2016-01-2189
Bo WANG, Tawfik Badawy, Yanfei Li, Hongming Xu, Yizhou Jiang, Xinyu Zhang
Atomization of fuel sprays is a key factor in control of combustion quality in direct-injection engines. In this present work, effect of injection pressure and flash boiling levels of Ethanol (ETH) on near nozzle spray patterns was investigated using an ultra-high speed imaging technique. Ethanol was injected from a single-hole piezo injector into an optically accessible constant volume chamber at injection pressures of 30 MPa, 40 MPa and 50 MPa at different back pressure and temperature. High-speed imaging was performed using a long-distance microscope coupled with an ultra-high speed camera (Shimadzu HPV-2). The results revealed a clear mushroom-like structure at the start of injection at 30 MPa injection pressure and ambient condition whereas at higher injection pressure or higher flash boiling level this mushroom shaped injection tip was not observed. Micro cone angle experienced a sudden increase during the start of spray and then dropped.
2016-10-17
Technical Paper
2016-01-2202
Naoya Ochiai, Jun Ishimoto, Akira Arioka, Nobuhiko Yamaguchi, Yuzuru Sasaki, Nobuyuki Furukawa
The advanced development and optimization of fuel atomization in port and direct injection systems for automobile engine is desired for the improvement of fuel combustion performance and thermal efficiency of the engine. Computational prediction and design of injector nozzle spray flow is an effective method for that. However, a practical simulation method of the continuous primary, secondary spray breakups and the spraying behavior have not been developed yet. In this study, we have developed the integrated computational method of the total fuel atomization process of the injector nozzle. This new computational approach is taking into account the nozzle internal flow to form the primary breakup using Volume of Fluid (VOF) method in connection with the spray flow characteristics to the engine cylinder using Discrete Droplet Model (DDM).
2016-10-17
Technical Paper
2016-01-2272
Carl Bennett, Jason Bell, Jeffrey Guevremont
Elastomer compatibility is an important property of lubricants. When seals degrade oil leakages may occur, which is a cause of concern for original equipment manufacturers (OEMs) because of warranty claims. Leakage is also a concern for environmental reasons. Most often, the mechanical properties and fitting of the oil seals is identified as the source of failure, but there are cases where the interaction between the lubricant and the seal material can be implicated. The performance of seal materials in tensile testing is a required method that must be passed in order to qualify lubricant additive packages. We conducted an extensive study of the interactions between these elastomeric materials and lubricant additive components, and their behavior over time. The physicochemical mechanisms that occur to cause seal failures will be discussed.
2016-10-17
Technical Paper
2016-01-2204
Takafumi Mori, Masanori Suemitsu, Nobuharu Umamori, Takehisa Sato, Satoshi Ogano, Kenji Ueno, Oji Kuno, Kotaro Hiraga, Kazuhiko Yuasa, Shinichiro Shibata, Shinichiro Ishikawa
One effective and easy way to improve fuel economy for automobiles is to decrease viscosity of lubricants, as it brings less churning loss. However, this option creates a higher potential for thinner oil film, which could damage the mechanical parts. This paper describes a new low-viscosity gear oil technology which was successfully developed to improve wear at tapered-roller bearings in differential gear units, whereas achieving higher fuel economy performance. As for tapered-roller bearings in differential gear units protected by gear oils, one major damage is supposed to cause wear at large end face of rollers and the counterpart, so-called bearing bottom wear. In order to understand the wear mechanism, wear at rolling contact surface of rollers and the counterparts, so-called bearing side wear was additionally observed to confirm the wear impact on tapered-roller bearing.
2016-10-17
Technical Paper
2016-01-2345
Guoyu FENG, Wenku Shi, Henghai Zhang
To study the static and dynamic characteristics of thrust rod, based on multi-body dynamics and finite element method for static and dynamic characteristics of the thrust rod were analyzed. The establishment of a dynamic simulation model of vehicle and the road, in the extreme conditions of the thrust rod loads were calculated. Thrust rod finite element model is established, according to the calculation result of the load and test data of rubber, stiffness, strength and modal analysis, and verified by test, gained its deformation, stress distribution and low-order natural frequency and mode shape. The results provide a theoretical basis for the design and optimization of the thrust rod.
2016-10-05
Event
This technical session includes topics covering the development and introduction of temporary and permanent fasteners used in production assembly and / or final installation. Research into new and enhanced fastener solutions optimizing automated and manual installation is presented along with innovative solutions to current production fastening issues
2016-10-05
Event
Topics Include: Fully Automated Fastening Sub-systems Semi-Automated Fastening Sub-systems Engineering and Designing for Automated Fastening New and Enhanced Fastener
2016-10-05
Event
Topics Include: Fully Automated Fastening Sub-systems Semi-Automated Fastening Sub-systems Engineering and Designing for Automated Fastening New and Enhanced Fastener
2016-10-05
Event
2016-10-04
Event
This session is dedicated to advancements in drilling and fastening applications through the utilization of robots for positioning drilling and/or fastening end effectors to airframe structure
2016-10-04
Event
This session is dedicated to advancements in drilling and fastening applications through the utilization of robots for positioning drilling and/or fastening end effectors to airframe structure
2016-10-04
Event
This session includes topics covering the development and introduction of temporary and permanent fasteners used in production assembly and / or final installation. Research into new and enhanced fastener solutions optimizing automated and manual installation is presented along with innovative solutions to current production fastening issues
Viewing 1 to 30 of 19924

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