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Viewing 1 to 30 of 3077
2015-10-04
Event
The CAE has been extensively used to reduce the product development time as well as prevent the field issues such as the brake noise and vibration. This session presents the latest in the computer-aided engineering technologies in the various areas including but not limited to NVH, CFD, thermal, structural, and wear analysis.
2015-09-29 ...
  • September 29-October 1, 2015 (2 Sessions) - Live Online
Training / Education Online Web Seminars
Today's transportation industries are facing multi-disciplinary challenges. The product design and development process challenges often contradict each other, for example cost, weight, quality and performance. A central challenge is the need for cost and mass reduction to compete in the global market, while continuing to meet all new and existing requirements for quality and performance. Accelerated Concept to Product (ACP) Process is a performance-driven, holistic, product design development method intended to create a balance between structure and strength, synchronizing the individual facets of the product development process.
2015-09-17 ...
  • September 17-18, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Side impact crashes account for approximately twenty-six percent of all motor vehicle fatal crashes, second only to frontal crashes, according to a report by the National Highway Transportation and Safety Administration (NHTSA). While car companies and suppliers continue to develop new technologies that make vehicles safer, NHTSA rolled out updated safety regulations (FMVSS 214) based on new research studies, making vehicle safety design more and more complex. This seminar is designed to familiarize participants with the engineering principles behind vehicle and restraint designs for occupant safety.
2015-06-15 ...
  • June 15-16, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • November 23-24, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Car companies and suppliers continue to develop new technologies that make vehicles safer and regulatory agencies continue to update safety regulations based on new research studies, making vehicle safety design more and more complex. This seminar covers the mechanics of frontal crashes and how vehicle structures, vehicle restraint systems, and vehicle interiors affect occupant safety. It also describes details of how CAE tools work in the simulation of frontal crashes. The goal of the course is to familiarize participants with engineering principles behind vehicle and restraint designs for occupant safety.
2015-04-29 ...
  • April 29-May 1, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • September 28-30, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
This interactive seminar will take you beyond the basics of passenger car and light truck vehicle dynamics by applying advanced theory, physical tests and CAE to the assessment of ride, braking, steering and handling performance. Governing state-space equations with transfer functions for primary ride and open loop handling will be developed & analyzed. Building on the analysis of the state space equations, common physical tests and their corresponding CAE solutions for steady state and transient vehicle events will be presented. The "state-of-the-art" of vehicle dynamics CAE will be discussed.
2015-04-23
Event
Papers should concentrate on multi-discipline CAE applications in vehicle development involving multiple type of physical problems and their coupled interactions. The multi-discipline CAE methods may address couplings between fluid, structural, thermal, mechanical, electrical, control or other systems.
2015-04-22
Event
This session covers the development and application of numerical methods along with test correlation and optimization for NVH issues of full vehicle and vehicle subsystems. All structural components, subsystems and complete systems found in automotive vehicles will be considered. Topics include structure NVH, vibro-acoustics, wind noise and aeroacoustics, intake/exhaust and vehicle interior noise, sound quality etc.”
2015-04-22
Event
This session covers the development and application of numerical methods along with test correlation and optimization for NVH issues of full vehicle and vehicle subsystems. All structural components, subsystems and complete systems found in automotive vehicles will be considered. Topics include structure NVH, vibro-acoustics, wind noise and aeroacoustics, intake/exhaust and vehicle interior noise, sound quality etc.”
2015-04-22
Event
This series of sessions focuses on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry. Studies and discussions on innovative and improved fatigue theory/methods in will be discussed along with and engineering applications of CAE durability analysis.
2015-04-22
Event
This series of sessions focuses on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry. Studies and discussions on innovative and improved fatigue theory/methods in will be discussed along with and engineering applications of CAE durability analysis.
2015-04-21
Event
This session deals with the manufacture of detail parts through laser sintering, stereo lithography, fused deposition modeling, and other emerging technologies. The session will explore technologies and methods for producing net or near net parts in various resins, plastics and metals directly from a CAD model that could employ design architectures that couldn't be achieved by other manufacturing methods.
2015-04-21
Event
This session publishes papers and presentations advancing the knowledge in product design, manufacturing processes, and engineering analysis using the state-of-the-art computer technology. The scope includes such areas as CFD, manufacturing and assembly simulation, crash-worthiness, computational mechanics, mold flow, ride simulation, ergonomic design, NVH, reverse engineering, etc. Developments in numerical methods applicable to automotive engineering problems will also be considered.
2015-04-21
Event
This series of sessions focuses on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry. Studies and discussions on innovative and improved fatigue theory/methods in will be discussed along with and engineering applications of CAE durability analysis.
2015-04-21
Event
This series of sessions focuses on state-of-the-art fatigue theory and advanced development in fatigue testing, material behavior under cyclic loading, and fatigue analysis methodology & research in the ground vehicle industry. Studies and discussions on innovative and improved fatigue theory/methods in will be discussed along with and engineering applications of CAE durability analysis.
2015-04-14
Technical Paper
2015-01-0664
Hiroko Tada
We optimized the soundproof packages. This optimization study should be done in the early stage of vehicle development. The process for improving automotive interior quietness includes setting the marketability targets, the vehicle body acoustical performances, and the parts specifications. The acoustical system performance in this process is accomplished by evaluating the acoustical energy level of each system with the unit power of the exterior speaker excitation. The system was defined as the partial surface of the interior cavity, and one interior cavity surface was divided into a number of systems. Each system includes panel, damping material and exterior and interior soundproof packages. This system performance is named as the Energy Transmission Loss (ETL). The applicability of the method with ETL was verified by evaluating the results against the predicted values using the new method with the vehicle operation on a chasse-dynamometer.
2015-04-14
Technical Paper
2015-01-0663
Ling Zheng, Zhanpeng Fang, Zhongcai Tang, Zhenfei Zhan, Jiang-hua FU
The design optimization of vehicle body structure is addressed to reduce interior noise and improve customer satisfaction in this paper. The structural-acoustic model is established and the response of sound pressure in frequency domain is obtained by using finite element method. The minimization of sound pressure near the driver’s right ear depends on the geometry of vehicle body structure and the layout of damping treatments. The panel participation analysis is performed to find out the key panels as design variables and improve the efficiency of optimization computation. Response Surface Method (RSM) is utilized to optimize the vibro-acoustic properties of vehicle body structure instead of complex structural-acoustic coupling finite element model. Structural-acoustic problem is approximated by a series of quadratic polynomial using RSM. Geometric optimization problem of panels is described and solved to minimize the interior noise in vehicle.
2015-04-14
Technical Paper
2015-01-0555
Zhigang Wei
Computer aided engineering (CAE) based virtual damage and life assessment tools are now commonly used in component-level, system-level and even vehicle-level product design and validation thanks to the rapid development in computer and computing technologies. CAE simulation covers a wide variety of engineering areas such strength, fatigue related durability, noise-vibration-harshness (NVH), crashworthiness, driving stability etc. Recently, several CAE based thermal-fatigue life assessment tools have been developed and some are commercially available. However, most of these tools are deterministic in nature, therefore, cannot reflect the observed data variation and uncertainty, which are caused by many factors including the complex underlying fatigue-creep-oxidation failure mechanisms. The major obstacle to realistic life assessment is essentially the lack of reliable methodologies and associated database support.
2015-04-14
Technical Paper
2015-01-1344
Shivayogi S Salutagi, Milind Kulkarni, Aniruddha Kulkarni
Efficiency, reliability, uptime and power density are important performance requirements for manufacturers and users of off-highway equipment. Hydraulics technology is most preferred for off-highway equipment due to its high power density. Hydraulics deliver precisely the power and control that helps operators tackle the task at hand as well as providing the power to move equipment within and around work sites. The pumps, motors, valves, cylinders and hoses constitute a typical hydraulic system that powers machinery. How the individual components are designed or integrated determines the efficiency, reliability and power density of the system and the equipment itself. To meet these requirements, understanding fluid flow behavior is a critical aspect in designing the hydraulic systems and components. Build-test-break knowledge and experience are not sufficient to design and develop optimized solutions. In some cases, physical testing of actual product is impossible.
2015-04-14
Technical Paper
2015-01-0505
Miguel ANGEL REYES BELMONTE, Colin D. Copeland, Drummond Hislop, George Hopkins, Adrian Schmieder, Scott Bredda, Sam Akehurst
Pressure and temperature levels within a modern internal combustion engine cylinder have been pushing at the limits of traditional materials and design. These operative conditions are due to the stringent emission and fuel economy standards that are forcing automotive engineers to develop engines with much higher power density ratios. In this scenario, downsized, turbocharged engines are an important technology to meet the future demands on transport efficiency. It is well known that within downsized turbocharged gasoline engines, thermal management becomes a vital issue for durability and combustion stability. In order to contribute to the understanding of engine thermal management, a conjugate heat transfer analysis of a downsized gasoline piston engine has been performed. The intent was to study the design possibilities afforded by the use of the Selective Laser Melting (SLM) additive manufacturing process.
2015-04-14
Technical Paper
2015-01-0541
Zhigang Wei, Pingsha Dong
Mean stress effects in stress-life and strain-life fatigue have been systematically investigated for several materials such as steels, aluminum alloys and titanium alloys under uniaxial fatigue loading. Several engineering models or equations, such as Goodman, Morrow, Smith-Water-Topper and Walker, have been thoroughly examined, and it was found that the Walker equation with an adjustable fitting parameter gives the best results. Actually, these two-parameter (range and mean or maximum) driving force methods have been intensely studied in terms of both stress-life/strain-life fatigue and fatigue crack growth. It is generally agreed that the Walker-type relationship is the most appropriate model to describe the two-driving force fatigue with the Walker exponent reflecting the sensitivity of materials to mean stress.
2015-04-14
Technical Paper
2015-01-0545
Jeong Kyun Hong
In spite of increasing demands for quality aluminum alloy spot welds that enable lighter weight and more fuel efficiency automobiles, the fatigue evaluation procedure for these welds does not appear to be well established. In this article, the fatigue characteristics of aluminum alloy spot welds were evaluated based on experimental data and observations from the literature. In comparison with spot welds in steel alloys, aluminum alloy spot welds exhibit several significant differences including a different hardness distribution at and around the weld, different fatigue failure modes, and more. The effectiveness and applicability of the Battelle structural stress based simplified procedure for modeling and simulating automotive spot welds has been demonstrated previously by Battelle investigations.
2015-04-14
Technical Paper
2015-01-1343
Fulin Wei, Yanhua Shen
The body wear is heavy because of the friction between the goods and body floor under the truck dumping condition, which maybe related to the body structure or shape. This paper makes an investigation about the relationship between the body structure profile and body floor wear based on the discrete element method. Through the qualitative analysis of the forces and forms of movement in granular material and body, the function between wear and some factors, such as the load, contact area, relative velocity is established. However, considering of the mechanism of interaction between goods and body in three dimensional spaces, the structure parameters of one certain type dumper body are changed, such as the width, length, latter plate angle and the section number of bottom plate, and the simulation of dumping for different body structure are made in EDEM. In the process of the simulation, the physics and geometry parameters of sand, clay and ore are taken into consideration.
2015-04-14
Technical Paper
2015-01-1325
Vivek Yadav, Krishnan Karthikeyan, Anupam Prakash
Improving fuel economy and reducing emissions is becoming critical for future vehicles which will be lighter and faster. This demands, future engines to cater two contradictory requirements, one is high power density engine and other is lightweight compact engine design. This would require rigorous and accurate structural evaluation to achieve optimum design. Downsizing of engine leads to greater peak firing pressure to meet high power requirements. This in turn leads to high thermal loads on exhaust system and requires sufficient sealing between the exhaust manifold –cylinder head and exhaust manifold - turbocharger joints. Exhaust manifold joint is a gasketed, bolted joint. Improper sealing will cause the gas leakage from exhaust manifold joints which will directly affects the performance of engine from various aspects such as reduction in boost pressure and gasket failure etc.
2015-04-14
Technical Paper
2015-01-1339
B Prabakaran, Abhishek Mehta
Hydrostatic pumps are used to supply oil to Engine, Gearbox and Steering System. The phenomenon of Cavitation during the flow sets a natural limit to the amount of suction flow available from the pump and is the major problem with these pumps. Since Cavitations produced during the pumping action decreases the efficiency with which the pumping action can happen. Hence to check the pressure drop in the flow which is the major cause for the formation of cavities. A 2D simulation and analysis has been done using FLUENT Vane Pump model. Using this simulation we can find out the pressure drop regions inside the vane pump that are the major areas for cavity formation. Using the result we will be able to correlate the pressure and the flow rate inside the Vane pump.
2015-04-14
Technical Paper
2015-01-0558
Xiaobei Cheng, Xin Wang, Yang Ming, Zhang Hongfei, Ran Gao
With a focus on a heavy diesel engine,complete set of multi-field coupling methodology aimed at analyzing and optimizing for fatigue-strength of cylinder head is proposed.A detailed model of the engine consisting of both the coolant galleries and the surrounding metal components is employed in both fluid-dynamic and structural analyses to accurately mimic the influence of the thermo-mechanical load on the cylinder head and block structural reliability. This model carries out several simulating experiments like 3-dimensional CFD of in-cylinder combustion and engine cooling jacket,simulation of cylinder head temperature field which use fluid-structure interaction,stress and strain analysis under thermal-mechanical coupling conditions,and low/high cycle fatigue analysis. In order to assess a proper CFD setup useful for the optimization, the experimentally measured temperature distribution within the engine head is compared to the CFD forecasts.
Viewing 1 to 30 of 3077

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