Criteria

Text:
Display:

Results

Viewing 1 to 30 of 3020
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.
2015-09-17 ...
  • 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....
2015-02-17 ...
  • February 17-24, 2015 (3 Sessions) - Live Onlne
  • November 2-6, 2015 (3 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...
2015-01-21 ...
  • January 21-23, 2015 (2 Sessions) - Live Online
  • 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...
2014-12-04 ...
  • December 4-5, 2014 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • 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...
2014-10-29 ...
  • October 29-31, 2014 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • 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....
2014-10-16
WIP Standard
J826/3
This document describes the CAD model data of legs and back hardware available from SAE for the HPM-1 three-dimensional H-point machine. The elements of the CAD model include the feet, lower and thighs as well as headroom probe and t-bar. Also included are datum points and lines, and calibration references. The intended purpose for this information is to provide a CAD reference for design and benchmarking as well as a calibration reference for the physical HPM-1 audits. The content and format of the data files that are available are also described. The actual CAD model files are included with this product and are provided in the following formats: CATIA v4 (without parametrics), CATIA v5 (without parametrics), IGES, and STEP.
2014-10-13
Technical Paper
2014-01-2673
Amine Labreche, Fabrice Foucher, Christine Rousselle
Abstract In this work, the first injection of gasoline was maintained at 30 CAD Before TDC and the second one was swept between 10 CAD Before TDC to 5 CAD After TDC, in order to demonstrate the ideal positioning of the second injection. The results showed that when it was placed near TDC, low emissions, acceptable noise and acceptable efficiencies could be obtained. The effect of EGR, simulated by N2 addition, was also studied. As expected, globally the effect of the EGR rate was to delay the combustion phasing and to decrease NOx emissions. The optimal EGR dilution rate was found to be 30% with respect to the cycle-to-cycle variation criterion (< 5%). Increasing the dilution rate increased HC, CO and PM emissions, due to a considerable delay in combustion phasing caused by the reduction in the fuel reaction rate and the in-cylinder lack of oxygen when the EGR rate reached 30%. The impact of the fuel mass distribution between the two injections was also considered. This experiment showed that splitting the fuel mass equally between the injections is not the optimal solution.
2014-10-13
Technical Paper
2014-01-2641
Ken Naitoh, Kan Yamagishi, Shouhei Nonaka, Takuma Okamoto, Yoshiaki Tanaka
Supercomputer simulations substantiate a high potential of the new compressive combustion principle based on supermulti-jets colliding with pulse, which was previously proposed by us and can maintain high compression ratio for various air-fuel ratios. An original governing equation extended from the stochastic Navier-Stokes equation lying between the Boltzmann and Langevin equations is proposed and the numerical methodology based on the multi-level formulation proposed previously by us is included. For capturing instability phenomena, this approach is better than direct numerical simulation (DNS) and large eddy simulation (LES). A simple two-step chemical reaction model modified for gasoline is used. A small engine having a semispherical distribution of seventeen jets pulsed is examined here. Pulse can be generated by a rotary plate valve, while a piston of a short stroke of about 65mm is also included. Computations from 2,000 rpm to 20,000rpm at some loads for the present engine having supermulti-jets colliding with pulse and conventional super- or turbo-charged system are done, which show a high thermal efficiency over 60%, because there is very less heat loss on combustion chamber and piston surface.
2014-10-13
Technical Paper
2014-01-2870
Yuan Fang, Tong Zhang
Abstract Because of the vehicle market competitive and of the raise of customers' demanding, NVH performance became an important job, especially for new energy vehicles. As the electric vehicle moving into the direction of high speed and large torque, electric vehicle vibration and noise problems highlighted gradually. In recent years, CAE has played an increasing role in the design, development and optimization of powertrain NVH at component and system levels. The subject of this paper was the numerical and experimental evaluation of the electromagnetic and vibro-acoustic behavior of an electric powertrain. For this purpose, a coupled and fully flexible dynamics model of the electric powertrain was developed. Then electromagnetic forces including both radial and tangential force and gear mesh excitations including time-varying meshing stiffness, meshing error and meshing impact were computed, which were used to perform forced response analysis on the full FE mesh of the powertrain housing.
2014-10-13
Technical Paper
2014-01-2853
Christoph Menne, Simon Galbraith, Alan Jones, Lars Henning, Thomas Koerfer
Abstract In September 2013 the Jaguar XF 2.2l ECO sport brake and saloon were introduced to the European market. They are the first Jaguar vehicles to realize CO2 emissions below 130 g/km. To achieve these significantly reduced fuel consumption values with an existing 2.2l I4 Diesel engine architecture, selected air path and fuel path components were optimized for increased engine efficiency. Tailored hardware selection and streamlined development were only enabled by the consequent utilisation of the most advanced CAE tools throughout the design phase but also during the complete vehicle application process.
2014-10-13
Technical Paper
2014-01-2900
Muhammed Fasil, Daniel Plesner, Jens Honore Walther, Nenad Mijatovic, Joachim Holbøll, Bogi Bech Jensen
This paper investigates the heat dissipation in the hub motor of an electric two-wheeler using lumped parameter (LP), finite element (FE) and computational fluid dynamic (CFD) models. The motor uses external rotor permanent magnet brushless DC topology and nearly all of its losses are generated in the stator. The hub motor construction restricts the available conductive paths for heat dissipation from the stator to the ambient only through the shaft. In contrast to an internal rotor structure, where the stator winding losses are diffused via conduction, here convection plays a major role in loss dissipation. Therefore, a LP thermal model with improved convection modelling has been proposed to calculate the temperature of the components inside the hub motor. The developed model is validated with the FE thermal model and the test data. In addition, CFD tools has been used to accurately model the internal and the external flow as well as the convective heat transfer of the hub motor. Finally, an optimization study of the hub motor has been carried out using the CFD model to improve heat transfer from the stator.
2014-10-13
Technical Paper
2014-01-2882
Ming Chen, Yanjun Wang, Wenrui Wu, Jun Xin
The present paper describes a CAE analysis approach to evaluate the design of exhaust manifold of a turbo charged gasoline engine. It allows design engineers to identify structural weakness at the early stage or to find the root cause of exhaust manifold failures. A transient none-linear finite element method is used to calculate the plastic deformation and thermal mechanical behaviors of the exhaust manifold assembly during thermal shock cycles, which include rated speed full load, rated speed motored and idle speed conditions. A transient heat transfer simulation is performed to provide thermal boundary conditions for the nonlinear stress/strain analysis. The finite element model includes a part of cylinder head, exhaust manifold, gaskets, turbo charger housing, catalytic converter, brackets, bolts and nuts. The results show that plastic deformation is the main cause of manifold cracking and the manifold flange distortion causes the exhaust leakage. The simulation results indicate that predicted crack locations and leak area are in agreement with that from the engine durability test.
2014-10-07
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.
2014-10-07
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.
2014-09-28
Technical Paper
2014-01-2493
Juan Carlos Martinez Laurent, Adrian Jordan, Francisco Canales
Abstract The brake system and components are essential active safety systems for users of motor vehicles, one common NVH phenomenon known as Brake Disc Thermal Coning creates a perception of poor braking system performance. Although Brake Disc Thermal Coning does not deteriorate the braking distance or the vehicle performance, is a concern for the customer who identifies any undesired vibration as a potential performance loss resulting in complaints and warranty claims. In order to increase the quality, and reliability of the products, Automotive OEMs have created processes and tests, today incorporating the ones based in computational solutions, to identify, prevent and correct potential issues before its present in the final product. As computer technologies like Computer Aided Design (CAD), Computer Aided Engineering (CAE) and Computer Aided Manufacturing (CAM) have become more robust, and PC power clusters have increased the complexity of the problems resolution and decreasing the solver processing time, OEMs are moving forward from the road, to the lab and today to CAE.
2014-09-24
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.
2014-09-24
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.
2014-09-16
Technical Paper
2014-01-2266
Helen Lockett, Sarah Fletcher, Nicolas Luquet
Abstract The installation of essential systems into aircraft wings involves numerous labour-intensive processes. Many human operators are required to perform complex manual tasks over long periods of time in very challenging physical positions due to the limited access and confined space. This level of human activity in poor ergonomic conditions directly impacts on speed and quality of production but also, in the longer term, can cause costly human resource problems from operators' cumulative development of musculoskeletal injuries. These problems are exacerbated in areas of the wing which house multiple systems components because the volume of manual work and number of operators is higher but the available space is reduced. To improve the efficiency of manual work processes which cannot yet be automated we therefore need to consider how we might redesign systems installations in the enclosed wing environment to better enable operator access and reduce production time. This paper describes a recent study that applied design for assembly and maintainability principles and CATIA v5 computer aided design software to identify small design changes for wing systems installation tasks.
Viewing 1 to 30 of 3020

Filter

  • Range:
    to:
  • Year: