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2015-04-29 ...
  • April 29-May 1, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • October 26-28, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Safety continues to be one of the most important factors in motor vehicle design, manufacture and marketing. This seminar provides a comprehensive overview of these critical automotive safety considerations: injury and anatomy; human tolerance and biomechanics; occupant protection; testing; and federal legislation. The knowledge shared at this seminar will enable attendees to be more aware of safety considerations and to better understand and interact with safety experts. This course has been approved by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) for 18 Continuing Education Units (CEUs).
2015-04-22
Event
Visual perception continues to be a critical aspect of overall driver performance. This session welcomes paper offers highlighting new developments designed to provide better support for driver rearward vision, better understanding of how to measure light and its effects on drivers’ eyes, and better understanding of how drivers accomplish the visually difficult task of negotiating intersections.
2015-04-21
Event
Safety Test Methodology Session in 2014 presents papers in advancement of auto- safety-related analytical/testing methods in frontal, side and rollover impacts, and energy-absorbing materials.
2015-01-14
Technical Paper
2015-26-0209
Ludek Hyncik, Jan Spicka, Jaroslav Manas, Jan Vychytil
The paper contributes to the field of vehicle safety technology by the virtual approach using biomechanical human body models. The goal of the paper is to exploit the previously developed scaling algorithm to create several virtual human bodies of a given age and proportions, to validate them and to assess their stature dependent response. Based on a validated reference model, the previously developed scaling algorithm develops virtual human body models for given height, mass, age and gender. Particular body segments are scaled based on the anthropometrical database concerning the body dimensions taking also percentiles into account. The body stiffness is driven by age dependent flexindex. Several virtual models of human bodies representing particular cadavers were generated via the automatic scaling algorithm. The frontal sled test response of the models was successfully compared to the experimental data.
2015-01-14
Technical Paper
2015-26-0186
Mohitkumar R. Chauhan, Girish Kotwal, Abhijeet Majge
Numerical Simulation of Tire and Wheel Assembly Impact Test using Finite Element Method M R Chauhan1 Prof. G N Kotwal2 A S Majage3 1,2Department of Mechanical Engineering, VIT, Pune, India 3Finite Four Technologies, Pune, India Abstract: The major concern in design of wheel is their potentiality to bear impact loads. Therefore, wheel impact test is required to fulfill the safety requirement. In this study, there are two objectives; first, the simulation of impact test for wheel is developed according to SAE wheel impact test. Often when vehicle interacts with guardrails, bridge rails and curbs the interaction between roadside hardware and wheel causes wheel damage. The test setup consists of vertically acting striker of mass 480 kg and having prescribed velocity. Energy based approach and total plastic work concept of ductile fracture mechanics is used to predict wheel impact failure.
2015-01-14
Technical Paper
2015-26-0165
Sivaprasad Koralla, Ganesh Bhagwant Gadekar, V Ramana Pavan Nadella, Susanta Dey
Spot welding is the primary joining method used in automobiles. Spot-weld plays a major role to maintain vehicle structural integrity during impact tests. Robust spot weld failure definitions is critical for accurate predictions of structure performance in safety simulations. Spot welds have a complex metallurgical structure, mainly consisting of fusion and heat affected zones. For accurate material property definitions in simulation models, huge no of inputs from test data is required. Multiple tests, using different spot weld joinery configurations, have to be conducted. In order to accurately represent the spot-weld behavior in CAE, detailed modeling is required using fine mesh. The current challenge in spot-weld failure assessment is developing a methodology having a better trade-off between prediction accuracy, testing efforts and computation time. In view of the above, cohesive zone models have been found to be very effective and accurate.
2015-01-14
Technical Paper
2015-26-0009
Anusha Baskaran, Vinuchackravarthy Senthamilarasu, Krishnan Kutty
Abstract Driver safety and Advanced Driver Assistance Systems (ADAS) is gaining lot of importance these days. In some countries, there are strict regulations in place which mandate the use of certain ADAS features in automobiles. However, as the need for these safety critical systems increases, the challenges associated also increase. These challenges can arise due to technology, human factors or due to nature. In countries like India, where one can expect different weather conditions with changing geography, the associated challenges are mainly due to the natural factors like haze, fog, rain and smoke. This poses a challenging problem in terms of visibility for the drivers as well as in vision based ADAS; thereby, leading to many fatal road accidents. In this paper, a novel pre-processing technique, which addresses the interesting problem of enhancing the perceptual visibility of an image that is degraded by atmospheric haze, is proposed.
2015-01-14
Technical Paper
2015-26-0173
Eloi Boix, Adria Ferrer, Xavier Sellart, Sandra Fernandez
The increasing variety of test configurations and requirements has encouraged the Passive Safety Department to carry out tests of greater complexity. These advanced crash tests usually involve vehicle trajectories which are not straight and cannot be performed with the usual testing system. In order to increase the testing capabilities, a new guiding system was developed to satisfy the abovementioned requirements. Several requirements for the desired system were established: 1. High reliability and robustness: to guarantee repeatability and durability in crashes. 2. In-vehicle system: to avoid the modification of the structure and without interfering in the mass distribution. 3. Electrically compatible: no electrical interference should be added in the vehicle. Based on these requirements a new vehicle guiding system was designed and developed. An in-loop processing of the images filmed by a camera enables the vehicle to follow a path marked on the floor.
2015-01-14
Technical Paper
2015-26-0001
Jiji Gangadharan, Shanmugaraj Mani, Krishnan Kutty
Abstract Advanced Driver Assistance Systems (ADAS) have become an inevitable part of most of the modern cars. Their use is mandated by regulations in some cases; and in other cases where vehicle owners have become more safety conscious. Vision / camera based ADAS systems are widely in use today. However, it is to be noted that the performance of these systems is depends on the quality of the image/video captured by the camera. Low illumination is one of the most important factors which degrades image quality. In order to improve the system performance under low illumination, it is required to first enhance the input images/frames. In this paper, we propose an image enhancement algorithm that would automatically enhance images to a near ideal condition. This is accomplished by mapping features taken from images acquired under ideal illumination conditions on to the target low illumination images/frames.
2015-01-14
Technical Paper
2015-26-0183
Aditya Malladi, Sridhar lingan Sr, Hari Sudhan
Abstract Crush box in an automotive passenger car has become an integral part of structural design performing various functions like optimizing energy absorption in high speed impacts, replaceable part during low speed impacts etc. Design of crush box for high speed impacts is very important as it is the first major energy absorbing component in the load path and its deformation significantly affects the overall vehicle crash behavior. The present paper explains development of a hydro-formed crush box in the front end of a sports utility vehicle. Hydro-formed components have residual plastic strains and non - uniform thickness variation throughout their length which is difficult to measure from a physical test coupon. It is critical to add hydro-forming effects onto crash FE models as it significantly affects the deformation under high speed impact. But detailed forming simulations need mature design and material data which is not available during early phases of product development.
2014-12-11
Video
Join the aerospace community and governmental agencies at this important industry event.
2014-12-09
WIP Standard
J374
This SAE Recommended Practice establishes a uniform laboratory test method to evaluate the strength characteristics of roof systems. The test procedure is intended to provide reliable and repeatable results and to permit numerical comparisons. A test is conducted in which the vehicle roof system is loaded under controlled laboratory conditions. Structural strength measurements are obtained under load application angles chosen to concentrate forces on the forward portions of the roof panel and roof supporting structure.
2014-12-09
WIP Standard
J850
Fixed rigid barrier collisions can represent severe automotive impacts. Deceleration conditions during fixed rigid barrier collisions are more readily reproducible than those occurring during impacts with yielding barriers. Barrier collision tests are conducted on automotive vehicles to obtain information of value in reducing occupant injuries and in evaluating structural integrity. The purpose of this SAE Recommended Practice is to establish sufficient standardization of barrier collision methods so that results of similar tests conducted at different facilities can be compared. The barrier device may be of almost any configuration, such as flat, round, offset, etc.
2014-12-09
WIP Standard
J972
Collision tests are conducted on automotive vehicles to obtain information of value in evaluation of structural integrity and in reducing the risk of occupant injuries. The deformation resulting from a moving rigid barrier impact is more severe at a given speed than that produced by using an actual vehicle, but is more readily reproducible than that occurring during vehicle to vehicle impacts. The purpose of this SAE Recommended Practice is to establish sufficient standardization of such moving barriers and moving barrier collision methods so that results of tests conducted at different facilities may be compared.
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