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Training / Education
2015-02-17
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.
Training / Education
2015-01-21
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.
Training / Education
2014-12-04
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.
Training / Education
2014-10-29
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.
Training / Education
2014-10-09
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.
Event
2014-10-07
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.
Event
2014-10-07
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.
Technical Paper
2014-09-28
Sukumar T, Murugan Subramanian
In commercial vehicle air braking system, Quadruple System Protection Valve (QSPV) is used to distribute the air from air processing unit to front axle, rear axle pneumatic brake circuits, parking brake circuits and to the auxiliary applications like suspension system, door operating system, clutch operation. The valve should meet the regulatory compliance as per IS 11852 norms. The Piston assembly used in Quadruple System Protection Valve (QSPV) is made of plastic material which consist of piston and retainer. The Piston is made up of PBT 30% GF and the retainer is made up of Nylon 6 30% GF material. Both material having different material properties in terms of flexural modulus and density. The piston is assembled with retainer by means snap fit mechanism to achieve the Flexibility in integral locking feature. The snap-fit is a mechanical joint system where part-to-part attachment is accomplished with locating and locking features (constraint features) that are homogenous with one or the other of the components being joined.
Technical Paper
2014-09-28
Mithun Selvaraj, Suresh Gaikwad, Anand Kumar Suresh
The highest goal for a good brake system design must be that the vehicle when braking obtains a shorter stopping distance, does not leave the track and remains steerable. From the perspective of road traffic , safety and for avoidance of accidents the time and location of a vehicle coming to halt after braking are crucial. In heavy commercial vehicle having longer wheel base, pneumatic brake system is being used .The pneumatic brake system configuration has to be designed in such a way that the response time should meet the safety regulation standards and thereby achieve shorter stopping distance and vehicle stability. Validating the effectiveness of pneumatic brake system layout experimentally on stopping distance and vehicle stability is expensive. This paper deals the modeling of a typical heavy commercial vehicle along with the entire pneumatic brake system layout with actuating valves, control valves and foundation brakes to predict the dynamic behavior and stopping distance. The modeling and simulation was carried out using AMESim , a commercially available multi-domain physical modeling software employing bond graph technique and lumped system.
Technical Paper
2014-09-28
Bongkeun Choi
In this paper new technology of virtual thermal test of disc brake with several advanced analytic techniques was presented. With the virtual thermal test, thermal performance of brake system could be easily evaluated without any possibility of great errors that used to happen in the earlier analyses. In addition to the classical result of temperature, this virtual thermal test produced several valuable applications such as optimization of thermal performance of brake and estimation of braking distance.
Technical Paper
2014-09-28
Adarsh Venkata Padmanabhan, Hariram Ravichandran, Lokendra Pavan Kumar Pappala, Shreyas Shenoy
This paper will comprise obtaining friction coefficient (µ) measure by extracting surface and texture information using sensors during brake interventions. A primary estimate of friction coefficient will be obtained using wheel signals. Surface texture estimation and secondary friction coefficient estimate will be obtained using acoustic signals. The estimates will be compared and combined to obtain a more accurate measure of friction coefficient. Finally, a suitable interpolation technique is used to obtain a µ-grid around the vehicle. The obtained µ-grid can be extrapolated with the help of camera information. The grid is graphically realized with the aid of visualization techniques. This type of surface characterization usually enables brake distance optimization and effective countermeasures pertaining to a standard ESP system. Keywords: Friction Coefficient Estimation, Acoustic Information Extraction, Active Safety.
Technical Paper
2014-09-28
Lijun Zhang, Cheng Ruan, Dejian Meng
Paper Title: The Influence of Vacuum Booster Design Parameters on Brake Pedal Feel Key words: brake pedal feel; bench test; vacuum booster parameter; forward design Research and/or Engineering Questions/Objective As one of the most important characteristics of the brake system, brake pedal feel is determined by the structural and kinetic parameters of the components of the brake system. With the improvement of consumer demands for braking reliability and comfort, brake pedal feel caught the attention of the manufacturers. Vacuum booster is the servo power component of the brake system, whose parameters have a direct influence on the brake pedal feel characteristics. This study could contribute to the guide of vacuum booster forward design and brake pedal feel characteristics prediction. Methodology A dynamic model of the complete brake system which has a full mathematical description and contains the structure parameters is established in the Matlab/Simulink software, considering the input velocity characteristics.
Event
2014-09-24
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.
Event
2014-09-24
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.
Technical Paper
2014-09-16
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.
WIP Standard
2014-08-20
This document describes the CAD model data available from SAE for the two-dimensional H-point template (HPM-1).
Standard
2014-08-19
This SAE Recommended Practice identifies graphic symbols used in electrical circuit diagrams. The symbols aid troubleshooting electrical systems.
Magazine
2014-08-12
A new Formula for racing The new Formula E series' electric racecars are intended to pioneer new technology for broader use in production, encouraging fans to think differently about the technologies they use. Production of satellite with first all-electric propulsion system advances Electric propulsion has been limited so far to small movements of the satellites once it is in its geostationary orbit. The Boeing 702SP innovation is its use of electric propulsion to raise the satellite from its launch-vehicle drop-off point to geostationary orbit. Using CAE to assess whining noise of electric powertrains To develop an electric powertrain with a minimum noise level and minimized whining it is necessary to have accurate CAE simulation and precise criteria to assess whining noise.
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