Criteria

Text:
Display:

Results

Viewing 1 to 30 of 3665
2015-11-17 ...
  • November 17-18, 2015 (8:30 a.m. - 4:30 p.m.) - Tysons, Virginia
Training / Education Classroom Seminars
Aircraft accident and incident investigations should be supported by all engineering disciplines and departments involved with design, manufacturing, certification, and field operations. For individuals called upon to serve as advisors or technical representatives to official aircraft accident investigation (AAI) teams, an understanding of aircraft accident investigation and reconstruction methodology and processes is critical to success in this supportive role. This two-day seminar will begin with the basic requirements for conducting proper accident investigations, including investigative philosophies and procedures.
2015-06-22 ...
  • June 22-24, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Automotive crash reconstruction is a process carried out with the specific purpose of estimating in both a qualitative and quantitative manner how a crash occurred. Reconstructions are based on data collected during the crash and physical evidence gathered during a crash investigation. To some extent, testimonial evidence is also used. Whether a crash is between two vehicles, a vehicle and pedestrian or a vehicle and a barrier, specific crash segments, classified as pre-impact, impact and post-impact motion often are reconstructed separately.
2015-05-06 ...
  • May 6-8, 2015 (2 Sessions) - Live Online
  • November 3-5, 2015 (2 Sessions) - Live Online
Training / Education Online Web Seminars
Although many have an idea of what the term “driver distraction” means, there is no common definition within the research community. Additionally, there are many studies that have investigated the topic, but with varying and sometimes conflicting results. What should be made of these discrepancies? This four-hour web seminar will provide an overview of driver distraction (predominantly electronic devices): the problem; how to define it; the current state of research and how to critically evaluate that research to make informed decisions; and the effectiveness of state laws and fleet policies to reduce it.
2015-04-23
Event
The Biomechanics session presents new research on automotive occupant kinematics, human injury biomechanics, and human tolerance in an automotive environment. This includes new methodologies in the study of human injury, studies of human interaction with occupant protection systems, technological advances in physical and virtual anthropomorphic test devices, and other experimental, analytical and modeling studies on the biomechanics of human injury.
2015-04-20 ...
  • April 20-22, 2015 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • September 9-11, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • December 7-9, 2015 (8:30 a.m. - 4:30 p.m.) - Norwalk, California
Training / Education Classroom Seminars
Attendees to the seminars held in conjunction with the SAE 2015 World Congress will receive COMPLETE access to Congress activities for only $55 per day. If interested, please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for this special Congress daily rate. EDR’s are not new, but are becoming more prevalent in part due to a new federal regulation. 49 CFR, Part 563, which affects vehicles produced after September 30, 2012, will result in a standardized and publicly available EDR in 90% of new vehicles.
2015-04-14
Technical Paper
2015-01-1442
Wolfgang Sinz, Jörg Moser, Christoph Klein, Robert Greimel, Karsten Raguse, Class Middendorff, Christina Steiner
Precise three-dimensional dummy head trajectories during crash tests are very important for vehicle safety development. To determine precise trajectories with an accuracy of approximately 5 millimetres, three-dimensional video analysis is an approved method. Therefore the tracked body is to be seen on at least two cameras during the whole crash term, which is often not given (e.g. head dips into the airbag). This non-continuity problem of video analysis is surmounted by numerical integration of differential un-interrupted electrical rotation and acceleration sensor signals mounted into the tracked body. Problems of this approach are unknown sensor calibration errors and unknown initial conditions, which result in trajectory deviations above 10 centimetres.
2015-04-14
Technical Paper
2015-01-1707
Ravi Ranjan, Shivaswaroop Parameswaraiah
Glare is subjective and can cause either disability or discomfort to eyes. A recent report from NHTSA (National Highway Traffic Safety Administration) shows that 22,487 deaths occurred in the year 2012. FARS (Fatality Analysis Reporting System) shows that 10,480 deaths occur at night time. This accounts to 48% fatalities during night time. Thus glare during driving, especially at night time is a serious concern and must be addressed. No commercial product exists to counter the glare, though there had been some academic progress in realizing a solution. The paper consists of two promising technologies that can help in reducing glare. The system level design comprises of vision based identification of glare source. And a device placed between the driver and source is controlled for its transmittance. By changing the transparency locally the glare is avoided without affecting the overall visibility.
2015-04-14
Technical Paper
2015-01-1450
Jeremy Daily, Andrew Kongs, James Johnson, Jose Corcega
The proper investigation of crashes involving commercial vehicles is critical for fairly assessing liability and damages, if they exist. In addition to traditional physics based approaches, the digital records stored within heavy vehicle electronic control modules (ECMs) are useful in determining the events leading to a crash. Traditional methods of extracting digital data use proprietary diagnostic and maintenance software and require a functioning ECM. However, some crashes induce damage that renders the ECM inoperable, even though it may still contain data. As such, the objective of this research is to examine the digital record in an ECM and understand its meaning. The research was performed on a Detroit Diesel DDEC V engine control module. The data extracted from the flash memory chips include: Last Stop Record, two Hard Brake events, and the Daily Engine Usage Log. The procedure of extracting and reading the memory chips is explained.
2015-04-14
Technical Paper
2015-01-1415
Yasuhiro Matsui, Shoko Oikawa
The number of traffic deaths in Japan decreased over the past 20 years to 4373 in 2013. Among accident types of road-accident fatalities, only cyclist fatalities increased in number from 2012 to 2013, from 563 to 600, an increase of 7%. The Japanese government began assessing the safety performance of car bonnet tops in terms of pedestrian deaths in 2005, but there has been no effective regulation for cyclist protection in Japan. The implementation of countermeasures that reduce the severity of injuries and number of deaths in traffic accidents requires a detailed understanding of the features of cyclist injuries in vehicle-versus-cyclist accidents. The aim of this study is to clarify the circumstances in which cyclists are injured.
2015-04-14
Technical Paper
2015-01-1418
Shane Richardson, Nikola Josevski, Andreas Sandvik, Tandy Pok, Tia Lange Orton, Blake Winter, Xu Wang
Pedestrian throw distance can be used to evaluate vehicle impact speed for wrap or forward projection type pedestrian collisions. There have been multiple papers demonstrating relationships between the impact speed of a vehicle and the subsequent pedestrian throw distance. In the majority of instances the scenarios evaluated focused on the central width of the vehicle impacting the pedestrian. However based on investigated pedestrian collisions there is a depending on where and how the vehicle and pedestrian engaged with one another, the definition of the engagement can and does significantly influence the throw distance. PC-Crash was used to simulate multiple pedestrian impacts at multiple speeds and pedestrian throw distance impact speed contour plots were created. The pedestrian throw distance impact speed contour plots for a range of vehicle types and pedestrian sizes are presented.
2015-04-14
Technical Paper
2015-01-1421
Dennis Turriff, David J. King, James Bertoch
Vehicle rollovers generate complicated damage patterns as a result of multiple vehicle-to-ground contacts. The goal of this work was to isolate and characterize specific directional features in coarse- and fine-scale scratch damage generated during a rollover crash. Four rollover tests were completed using stock 2001 Chevrolet Trackers. Vehicles were decelerated and launched from a rollover test device to initiate driver’s side leading rolls onto concrete and dirt surfaces. Gross vehicle damage and both macroscopic and microscopic features of the scratch damage were documented using standard and macro lenses, a stereomicroscope, and a scanning electron microscope (SEM). The most evident indicators of scratch direction, and thus roll direction, were accumulations of abraded material found at the termination points of scratch-damaged areas.
2015-04-14
Journal Article
2015-01-1489
Raed E. El-jawahri, Tony R. Laituri, Agnes S. Kim, Stephen W. Rouhana, Para V. Weerappuli
Transfer or response equations are important as they provide relationships between the responses of different surrogates under matched, or nearly identical loading conditions. In the present study, transfer equations for different body regions were developed via mathematical modeling. Specifically, validated finite element models of the age-dependent Ford human body models (FHBM) and the mid-sized male Hybrid III (HIII50) were used to generate a set of matched cases (i.e., 192 frontal sled impact cases involving different restraint, impact speeds, severities, and FHBM age). For each impact, two restraint systems were evaluated: a standard three-point vehicle belt with and without a single-stage inflator airbag. Regression analyses were subsequently performed on the resulting FHBM- and HIII50-based responses. This approach was used to develop transfer equations for seven different body regions: the head, neck, chest, pelvis, femur, tibia, and foot.
2015-04-14
Journal Article
2015-01-1470
Takahiro Isshiki, Atsuhiro Konosu, Yukou Takahashi
It is anticipated that the currently used legform impact test methods using a legform impactor simulating only a lower limb of a pedestrian, such as the Flexible Pedestrian Legform Impactor (FlexPLI) and the EEVC legform impactor, cannot appropriately evaluate the probability of lower limb injuries of pedestrians in the cases of the collisions with vehicles equipped with high bumpers (high-bumper vehicles). The reason for this limitation is considered to be the lack of the upper body representation. However, the detailed analysis about the effect of the upper body has been limited. The latest legform impact test method using the FlexPLI attempts to compensate for the influences of the upper body by setting the impact height 50 mm higher than that of an actual pedestrian. It is anticipated that this compensation is not effective in collisions with high-bumper vehicles, however, the ineffectiveness of the compensation has not been clarified.
2015-03-10
Technical Paper
2015-01-0024
Jaehaeng Yoo
Abstract For the robust passenger NCAP(New Car Assessment Program) 5star and the stable neck injury performance, a new concept of passenger airbag has been required. Especially, the deployment stability and the vent hole control technology of the passenger airbag can be improved. According to these requirements, the deployment stability technique has been studied and the ‘Active Vent’ technology has been developed. As a result, these technologies have led to achieve the robust NCAP rating and are applied to the production vehicles.
2015-03-10
Technical Paper
2015-01-0027
Tia Lange Gaffney, Blake Winter, Arky Elston, Andreas Sandvik, Tandy Pok, Shane Richardson, Nikola Josevski
Abstract When a vehicle is involved in a collision, often a question arises regarding the vehicle's pre-crash velocity. In modern vehicles, velocity data can typically be extracted from the vehicle's Electronic Data Recorder (EDR) via OEM or aftermarket diagnostic tools. However, many modern vehicles - and particularly vehicles operated and/or manufactured in Australia - are not equipped with downloadable EDRs. In these cases, the pre-crash velocity must be calculated based on physical forensic evidence. One method for estimating collision velocity is the crush-energy method, wherein the vehicle is modeled as a spring system. The velocity is then estimated based on the vehicle-specific stiffness properties and on the post-collision crush profile. The vehicle-specific stiffness properties must be derived from a comparable staged crash test. Often, no such crash test exists.
2015-03-03
Standard
J2949_201503
This Information Report documents the signal noise discovered with the 1996 NHTSA regulated version of the 45 degree foot, and defines a recommended solution to resolve the problem.
2015-02-26
WIP Standard
J3074
This procedure establishes a recommended practice for performing a Lumbar Flexion test to the Hybrid III 50th Male Anthropomorphic Test Device (ATD or crash dummy). This test was created to satisfy the demand from industry to have a certification test which characterizes the lumbar without interaction of other dummy components. In the past there has not been any tests to document the performance of Hybrid III 50th lumbar.
2015-02-16
WIP Standard
J2878
This procedure establishes a recommended practice for performing a Low Speed Thorax Impact Test to the Hybrid III Small Female Anthropomorphic Test Device (ATD or crash dummy). This test was created to satisfy the demand by the industry to have a certification test which results in peak chest deflection similar to current full vehicle, frontal impact tests. An inherent problem exists with the current certification procedure because the normal (6.7 m/s) thorax impact test has test results for peak chest deflection that are greater than those currently seen in full vehicle, frontal tests. The intent of this document is to develop a low speed thorax certification procedure for the H-III5F dummy with a 3.0 m/s impact similar to the SAE J2779 procedure for the H-III50M dummy.
2015-02-13
WIP Standard
J2517
This procedure establishes a recommended practice for establishing the sensitivity of the chest displacement potentiometer assembly used in the Hybrid III family of Anthropomorphic Test Devices (ATDs, or crash dummies). This potentiometer assembly is used in the Hybrid III family to measure the linear displacement of the sternum relative to the spine (referred to as chest compression). An inherent nonlinearity exists in this measurement because a rotary potentiometer is being used to measure a generally linear displacement. As the chest cavity is compressed the potentiometer rotates, however the relationship between the compression and the potentiometer rotation (and voltage output) is nonlinear. Crash testing facilities have in the past used a variety of techniques to calibrate the chest potentiometer, that is to establish a sensitivity value (mm/ (volt/volt) or mm/ (mvolt/volt)).
2015-02-03
Standard
J2862_201502
This user’s manual covers the small adult female Hybrid III test dummy. It is intended for technicians who work with this device. It covers the construction and clothing, disassembly and reassembly, available instrumentation, external dimensions and segment masses, as well as certification and inspection test procedures. It includes instructions for safe handling of the instrumented dummy, repairing dummy flesh, and adjusting the joints throughout the dummy.
2015-01-22
Event
This session addresses the development of anthropomorphic test devices (ATDs such as THOR, WorldSID, FlexPLI), computational human models (such as GHBMC), injury prediction methodologies (such as BRIC), and laboratory test procedures. Presentations will focus on efforts to understand the human response to impact and associated injury risk in frontal, oblique, and lateral loading conditions.
Viewing 1 to 30 of 3665

Filter

  • Range:
    to:
  • Year: