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Development and testing of a more realistic pelvis for the hybrid III 6-year-old ATD
Objective: Design and test a new pelvis for the Hybrid III 6-year-old (6YO) anthropometric test device (ATD) with a more humanlike bone structure, flesh contour, and flesh stiffness intended to provide more realistic interaction with belt restraints. Methods: Target geometry for the new pelvis bone...
Evaluation of Hybrid-III 6YO ATD chest jacket shape and position
In previous work, belt fit on the Hybrid-III six-year-old (6YO) anthropomorphic test device (ATD) was found to depend on the positioning of the chest jacket of the ATD. Moreover, differences were noted between jackets manufactured by Denton-ATD and First Technology Safety Systems (FTSS). The...
Optimizing protection for rear seat occupants assessing booster performance with realistic belt geometry using the Hybrid III 6YO ATD.
A series of sled tests was conducted to examine the performance of booster seats under belt geometries representing the range found in the rear seats of current vehicles. Twelve tests were performed with the standard 6YO Hybrid III ATD and 29 tests were performed with a modified version of the 6YO...
Effect of realistic vehicle seats, cushion length, and lap belt geometry on child ATD kinematics
This series of sled tests examined the effect of using real vehicle seats on child ATD performance. Cushion length was varied from production length of 450 mm to a shorter length of 350 mm. Lap belt geometry was set to rear, mid, and forward anchorage locations that span the range of allowable lap...
A simulation study of spine biofidelity in the Hybrid-III 6-year-old ATD
Objective: Because of the lack of pediatric biomechanical data, Hybrid-III (HIII) child anthropomorphic test devices (ATDs) are essentially scaled from the mid-size male ATD based on the geometric considerations. These ATDs inherit a rigid thoracic spine from the adult HIII ATDs, which has been...
Development and validation of a parametric child anthropomorphic test device model representing 6-12-year-old children.
Children from 6 to 12 year-old (YO) restrained in motor vehicles by seatbelts designed for adults often experience poor belt fit that results in adverse outcomes in crashes. Computer modelling provides a means to investigate the effects of body size on the injury risks in crashes beyond the few...