This study presents an efficient method for forensic engineers to determine the maximum forward head, hip and knee velocities of automobile occupants who are restrained by seat belts during frontal impacts. The ratios of the peak head, hip and knee velocities as a function of the impact speed change were determined from a combination of previous research data. The derived relationships considered both lap and torso restraint (3-point) and lap only restraint (2-point). The time and location at which the peak velocities occur are also presented and compared to the impact speed change. In addition, the head velocity profile as a function of head displacement was quantified for the lap and torso restraint case. The compiled head, hip and knee velocities may be utilized in order to assess seat belt usage and benefit. The velocity relationships will provide secondary information for accident reconstruction applications when the benefits of seat belt restraint are assessed. The results of this study may be referenced to aid in modeling the motion of vehicle occupants in frontal impacts for a range of impact severities.
Head, hip and knee velocities of restrained occupants in frontal impacts
2003
10 Seiten, 12 Bilder, 1 Tabelle, 20 Quellen
Aufsatz (Konferenz)
Englisch
Head, hip and knee velocities of restrained occupants in frontal impacts
Kraftfahrwesen | 2003
|Head, Hip and Knee Velocities of Restrained Occupants in Frontal Impacts
SAE Technical Papers | 2003
|Head, Hip and Knee Velocities of Restrained Occupants in Frontal Impacts
British Library Conference Proceedings | 2003
|Knee and hip displacements of vehicle occupants restrained by seat belts in frontal impacts
Kraftfahrwesen | 2001
|Knee and Hip Displacements of Vehicle Occupants Restrained by Seat Belts in Frontal Impacts
SAE Technical Papers | 2001
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