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Federal Motor Vehicle Safety Standard 214, “Side Impact Protection” was amended to assure occupant protection in a 33.5 mph crash test and phased-in to new passenger cars during model years 1994-1997. A Thoracic Trauma Index, TTI(d) is measured on Side Impact Dummies seated adjacent to the impact point. Manufacturers upgraded side structures and affixed padding in cars to improve TTI(d). Later, they installed two types of side air bags – torso bags and head air bags – for additional occupant protection in cars and LTVs. This report provides statistical analyses of 1993-2005 crash data from the Fatality Analysis Reporting System (FARS) and the General Estimates System (GES) estimate fatality reductions for these technologies.
[Author abstract] Every year around the world various types of automobile accidents occur, out of which side impact vehicular collisions are the most severe. Of these, side crashes into fixed narrow objects like trees, poles account for quarter percent of total deaths and serious injuries. Moreover these side impacts present a difficult problem for improving automotive crashworthiness because of the limited crushable zone between the vehicle occupant and the intruding door structure. To improve the automotive safety in side impacts a new pole test has been proposed under Federal Motor Vehicle Safety Standard (FMVSS) 214 to make the existing regulation more comprehensive in addressing the critical head and neck injuries in addition to thoracic and pelvis injuries. In this thesis, a finite element model of the Ford Taurus and Moving Deformable Barrier (MDB) as developed by National Crash Analysis Center (NCAC) has been used for the impact analysis. The US DOT-SID side impact dummy taken from MADYMO dummy database has been used as the vehicle occupant and the rigid pole modeled in MSC. Patran software as the narrow object. Computer Simulations have been analyzed according to the new proposed pole test and (FMVSS) 214 regulation. The critical injury values, the occupant kinematics and the structural damage have been compared justifying the need for the new pole test for improving the occupant safety.
Contains summaries of the knowledge regarding the effects of 128 road safety measures. This title covers various areas of road safety including: traffic control; vehicle inspection; driver training; publicity campaigns; police enforcement; and, general policy instruments. It also covers topics such as post-accident care, and speed cameras.
Safety of the car occupant is given foremost importance by the consumers, federal regulatory agencies, and automobile manufacturers. Many techniques and new technologies are proposed every year and implemented for the enhancements of the safety and crashworthiness of the vehicles. More efforts are still needed to make the cars safer, which in turn reduces the risk of fatal injuries to the occupants. In this study, a typical compact-sized sedan model is analyzed for the Federal Motor Vehicle Safety Standards (FMVSS) 214 Moving Deformable Barrier (MDB) and, Side Pole impact collisions, via numerical simulations. In particular, the effect of placement of the driver's seat laterally inward is investigated. A methodology is presented in this thesis to examine the structural damage experienced by the car when it is engaged in side collision with a rigid pole and the MDB barrier, and also to assess the injuries sustained by the driver in both scenarios. In order to delay the contact, a seat position is modified to provide during a side impact with an additional 18mm clearance between the seat and struck door. The National Crash Analysis Center (NCAC)'s Toyota Yaris finite element (FE) model have been utilized in this thesis to analyze the structural side impact responses of this compact sedan. The EuroSID-2re 50th percentile adult male side impact crash test dummy has been as the car occupant. The critical injury parameters of the dummy and the vehicle deformation are evaluated and compared. This study indicates that a small inward lateral displacement of the driver's seat towards the interior of the car can significantly reduce the potential injuries to the occupant. This is due to the fact that most of the energy of impact is absorbed by the vehicle side structure instead of the seat structure and the occupant.
Contains an inventory of evaluation reports produced by and for selected Federal agencies, including GAO evaluation reports that relate to the programs of those agencies.
Contains an inventory of evaluation reports produced by and for selected Federal agencies, including GAO evaluation reports that relate to the programs of those agencies.
Mitigating injury in side impact has been an important topic of research for decades. In the mid 1980's the American government began a program intended to improve the crashworthiness of vehicles in side impact. This program ultimately led to the introduction of a dynamic side impact test (Federal Motor Vehicle Safety Standard (FMVSS) 214), which new vehicles must pass, along with a very similar test aimed at consumer awareness (New Car Assessment Program (NCAP) side impact test). The work presented in this thesis involved the study and simulation of these tests to evaluate occupant response in side impact, with a focus on the thoracic response.
This study describes the development of a new side-impact beam design with high-performance polymer/plastic materials. The new designs are analyzed and contrasted with the original side impact beam made from conventional steel material. The novel designs are assessed on a wide range of parameters to make sure that occupant safety is not compromised. Three different high-performance plastic materials (LCP-CF-30, PA6-CF-30, and PA66-GF-60) are considered. The methodological framework of Finite Element Analysis (FEA) is used for numerically computing, analyzing, evaluating, and refining the new side-impact bar designs. This study accordingly examines and quantifies the detailed effects of the collision on the side-impact beams of different designs. The design and the material with the desired result are then integrated into a typical passenger car Finite Element Model, and computational impact evaluation tests and analysis are carried out as per Federal Motor Vehicle Safety Standard (FMVSS-214). The results from the Moving Deformable Barrier (MDB) and the Rigid Pole tests, including parameters such as intrusions, accelerations, and ratings are determined as per Insurance Institute for Highway Safety (IIHS) side-impact structural safety guidelines. High-performance plastics-based side-impact beams are shown to exhibit considerable reductions in intrusions and accelerations in the tested FE models. Of all the designs and materials tested, the designs based on LCP-CF-30 material are shown to exhibit the most reductions in intrusion and accelerations on side-impact beams. Inferring from the MDB and Rigid Pole tests, the study concludes that the novel LCP-CF-30 based side-impact beam provides improved safety when contrasted with that of the original steel side-impact beam. This study also demonstrates that when used with appropriate designs, high-performance plastics can be quite effective in producing components with desired energy absorption capabilities and significant reductions in displacements and mass.