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Effect of load limiting the shoulder-belt on right-front passenger kinematics in oblique-offset and NCAP frontal crash tests.
Traffic Inj Prev
November 2024
ProBiomechanics LLC, Bloomfield Hills, Michigan.
Objective: The effect of shoulder-belt load-limiting was evaluated on right-front passenger kinematics in 90 km/h oblique OMDB (offset moving deformable barrier) impacts and compared to kinematics in 56 km/h NCAP crash tests. The study focused on the influence of webbing pulling out of the retractor increasing forward excursion of the upper torso and head.
Methods: 18 OMDB crash tests were conducted by NHTSA at 90 km/h.
Rear passenger restraint in frontal NCAP tests compared to the right-front passenger.
Traffic Inj Prev
November 2024
ProBiomechanics LLC, Bloomfield Hills, Michigan.
Objective: This study compared kinematic and biomechanic responses of the 5 female Hybrid III in the right-rear and right-front passenger seats in frontal NCAP tests with 2015-16 MY vehicles. It focused on the lap-shoulder belt restraint of the rear passenger.
Methods: Eleven frontal NCAP tests were conducted by NHTSA at 56 km/h with a lap-shoulder belted 5 Hybrid III dummy in the right-rear and right-front seats.
Influence of initial belt torso contact on the kinematics and kinetics of booster-seated ATDs in frontal-oblique impacts.
Traffic Inj Prev
November 2024
Injury Biomechanics Research Center, The Ohio State University, Columbus, Ohio.
Article Synopsis
- The study examines how varying the initial belt gap on belt-positioning boosters affects the safety of child anthropomorphic test devices during vehicle impacts, specifically focusing on potential shoulder belt slip-off and its implications during evasive maneuvers.
- Using sled tests with different booster types and sizes, researchers measured the kinematic (movement) and kinetic (forces) outcomes of child test dummies under different belt fit conditions.
- Results indicated that larger-gap boosters resulted in increased torso rotation and lumbar moments compared to smaller-gap boosters, suggesting that inadequate initial contact between the shoulder belt and torso may compromise safety during collisions, although no complete belt slip-offs occurred.
Effects of seatback angle, seat rotation, and impact speed on injury risk of occupants in highly automated vehicles in frontal crashes.
Traffic Inj Prev
November 2024
Department of Biomedical Engineering, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
Objective: The objective of this study is to examine the effects of seatback angle, seat rotation, and impact speed on occupant kinematics and injury risk in highly automated vehicles.
Methods: The study utilized the Global Human Body Models Consortium midsize male (M50-OS+B) simplified occupant model in a simplified vehicle model (SVM) to simulate frontal crashes. The M50-OS+B model was gravity-settled and belted into the driver and left rear passenger seat.
The effect of age and bracing on vehicle occupant responses during sled-simulated evasive swerving.
Traffic Inj Prev
November 2024
Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
Objective: Bracing can reduce adult occupants' out-of-position postures, but it is unclear if this finding can be extended to child occupants. We investigated the effect of bracing, and age on the motion of vehicle occupants of different ages during sled-simulated pre-crash maneuvers.
Methods: Forty seatbelt restrained subjects (9-40 y.
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