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2017-06-19 ...
  • June 19-21, 2017 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • October 25-27, 2017 (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.
2017-06-12 ...
  • June 12-13, 2017 (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.
2017-04-11
Journal Article
2017-01-9625
Souhir Tounsi
Abstract In this paper, we present a design and control methodology of an innovated structure of switching synchronous motor. This control strategy is based on the pulse width modulation technique imposing currents sum of a continuous value and a value having a shape varying in phase opposition with respect to the variation of the inductances. This control technology can greatly reduce vibration of the entire system due to the strong fluctuation of the torque developed by the engine, generally characterizing switching synchronous motors. A systemic design and modelling program is developed. This program is validated following the implementation and the simulation of the control model in the simulation environment Matlab-Simulink. Simulation results are with good scientific level and encourage subsequently the industrialization of the global system.
2017-04-06
Event
This session will address recent advances in simulation technologies at scales ranging from theoretical development, real world CAE applications, and future development of the special stress and fatigue analyses techniques. The session is focus on the use of the combination of the dynamic, static, linear and nonlinear Finite Element Method (FEM) methods, Computational Fluid Dynamics (CFD), and Multibody Dynamics (MBD) to evaluate the stress, noise vibration & fatigue performance of the vehicle components and / or cross functional vehicle system.
2017-04-06
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-04-06
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-04-05
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.
2017-04-05
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.
2017-04-05
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.
2017-04-05
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-04-05
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-04-04
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.
2017-04-04
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.
2017-04-04
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.
2017-04-04
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-04-04
Event
Topics discussed in this session focus on innovative and improved fatigue methodologies and problem-solving techniques on automotive components, assemblies, and vehicles based on material characterization, testing and CAE (Computer Aided Engineering) analysis.
2017-03-28
Technical Paper
2017-01-0254
Sudeep Chavare, Kevin Thomson, Nitin Sharma
Adopting parametric approach to optimize CAE models for various objectives is a common practice these days. Connection entities such as welds and adhesive play a very important role in overall performance matrix and hence adding them to the pool of design variables during an optimization exercise provides additional design space. This paper evaluates the possibility to use structural adhesives as patches rather than continuous lines. The method presented in this paper offers unique approach to parameterize adhesive lines. The paper discusses an optimization study with structural adhesives patches along with spot weld pitch as design variables. Body in White (BiW) and Trimmed Body in White (TBiW) models are used for analysis .The goal of the study is to reduce total length of structural adhesive as well as number of welds while maintaining baseline NVH performance as constraints.
2017-03-28
Technical Paper
2017-01-1555
Mirosław Jan Gidlewski, Krystof JANKOWSKI, Andrzej MUSZYŃSKI, Dariusz ŻARDECKI
Lane change automation appears to be a fundamental problem of vehicle automated control, especially when the vehicle is driven at high speed. Selected relevant parts of the recent research project are reported in this paper, including literature review, the developed models and control systems, as well as crucial simulation results. In the project, two original models describing the dynamics of the controlled motion of the vehicle were used, verified during the road tests and in the laboratory environment. The first model – fully developed (multi-mass, 3D, nonlinear) – was used in simulations as a virtual plant to be controlled. The second model – a simplified reference model of the lateral dynamics of the vehicle (single-mass, 2D, linearized) – formed the basis for theoretical analysis, including the synthesis of the algorithm for automatic control. That algorithm was based on the optimal control theory.
2017-03-28
Technical Paper
2017-01-0363
Karthik Ramaswamy, Vinay L. Virupaksha, Jeanne Polan, Biswajit Tripathy
EPP foams are most commonly used in automotive applications for pedestrian protection and to meet low speed bumper regulatory requirements. In today’s automotive world the design of vehicles are predominantly driven by CAE. This makes it necessary to have validated material model for EPP foams in order to simulate and predict performance under various loading conditions. Since most of the automotive OEMs depend on local material suppliers for their global vehicle applications it is necessary to understand the variation in mechanical properties of the EPP foams and their effect on performance predictions. In this paper, EPP foams from three suppliers across global regions are characterized to study the inter-supplier variation in mechanical properties. In order to understand the effect of inter-supplier variation on vehicle performance, LSDYNA rate dependent material model is developed and validated for low speed and pedestrian protection load cases.
2017-03-28
Technical Paper
2017-01-0375
Ligong Pan, Seung Hyun Jung, Sushanth Ramavath, Mohamed El-Essawi, Randall Frank, Jiawei Qin, Ramarajan Ilankamban, Yuan Yao, Homa Torab, Yuzhao Song, Jim Alanoly
Computer Aided Engineering (CAE) has become an integral and essential part of vehicle development process with stringent safety and CAFE (Corporate Average Fuel Economy), performance and reliability requirements as well as reduced vehicle development time. Exponential increasing in CPU speed with advancement in the software technology like parallel computing, CAE process time has come down substantially over the years. However the pre-processing, in particular CAE model preparation has not advanced correspondingly and remains a bottleneck. Most of the time in model preparation is spent on meshing. Any reduction in mesh preparation would have substantial cycle time reduction in the CAE process. While Durability, NVH, and Crashworthiness are governed by same structural engineering principles, prevalent practice is to use different models for each attribute. Since all start with the same CAD data using common mesh for all these three attributes would reduce the resource requirements.
2017-03-28
Technical Paper
2017-01-0343
Xiao Wu, Zhigang Wei, HongTae Kang, Abolhassan Khosrovaneh
Over the decades, several attempts have been made to develop new fatigue analysis methods for welded joints since most of the incidents in automotive structures are joints related. Therefore, a reliable and effective fatigue damage parameter is needed to properly predict the failure location and fatigue life of these welded structures to reduce the hardware testing, time, and the associated cost. The nodal force-based structural stress approach is becoming widely used in fatigue life assessment of welded structures. In this paper, a new nodal force-based structural stress recovery procedure is proposed that uses the least squares method to linearly smooth the stresses in elements along the weld line. Weight function is introduced to give flexibility in choosing different weighting schemes between elements. Two typical weighting schemes are discussed and compared.
2017-03-28
Technical Paper
2017-01-0357
Dattaprasad Lomate, Asim Tewari, Prashant Date, Manoj R Ukhande, Girish M Shegavi, Raj Kumar Prasad Singh
The application of induction hardening treatment plays a vital role for enhancing fatigue life of various automotive components. This will incorporate compressive residual stresses in the component at significant extent. In this paper, wide range of experiments have been carried out on Rotating Bending Fatigue (RBF) specimens made from 38MnVS6 micro alloyed steel with induction hardening up to three different case depths. The set of specimens are fatigue tested at fully reverse loading condition using rotating bending fatigue testing machine. Based on this study a surface treatment factor is evaluated. This surface treatment factor is used as an input for evaluating precise fatigue life of the specimen using FEA packages. The fatigue life evaluated using FEA is showing good agreement with the results obtained through tests on the actual specimens.
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