Characterizing Child Head Motions Relative to Vehicle Rear Seat Compartment in Motor Vehicle Crashes
dc.contributor.author | Hu, Jingwen | en_US |
dc.contributor.author | Klinich, Kathleen D | en_US |
dc.contributor.author | Reed, Matthew P | en_US |
dc.contributor.author | Ebert-Hamilton, Sheila M | en_US |
dc.contributor.author | Rupp, Jonathan D. | en_US |
dc.date.accessioned | 2020-02-27T21:51:04Z | |
dc.date.available | NO_RESTRICTION | en_US |
dc.date.available | 2020-02-27T21:51:04Z | |
dc.date.issued | 2014 | |
dc.identifier | UMTRI-2012-20 | en_US |
dc.identifier.other | DOT HS 812 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/154006 | |
dc.description | Technical Report Final | en_US |
dc.description.abstract | Improved padding or other countermeasures in vehicle rear compartments could reduce the incidence of head trauma for child occupants. However, knowledge of likely child head impact locations for a range of crash scenarios is needed to determine which areas and structures should be padded and where a side curtain should be deployed to protect child occupants. The objective of this study is to use a scalable MAthematical DYnamic MOdels (MADYMO) model of a child occupant to estimate the distributions of possible head impact locations as a function of crash type, vehicle interior characteristics, and child size. To achieve this goal, a series of simulations using a scalable MADYMO child-ATD model was conducted. The geometries of the second-row compartment from 5 vehicles were recorded using a laser scanner to provide high-resolution data for assessing probable head contact zones. Distributions of lateral and longitudinal delta V were calculated as a function of PDOF using the NASS-CDS dataset to provide proper simulation conditions based on real-world crashes. Simulations of crashes ranging from pure frontal to pure side impact (9 o’clock to 3 o’clock) with child ATDs with and without backless boosters were conducted using UMTRI’s parametric child ATD model in MADYMO, UMTRI's child ATD positioning procedure, and UMTRI's automated belt-fit and crash simulation system. The simulation results were used to create a model of the spatial distribution of head trajectories based on child body size and crash direction. By combining the head motion model and the vehicle second-row geometry models, the likely head contact zones with respect to interior components were identified. The findings of this study provide a reference for future vehicle rear compartment design to reduce head injuries for older children. | en_US |
dc.description.sponsorship | National Highway Traffic Safety Administration | en_US |
dc.format | Technical Report Final | en_US |
dc.language | English | en_US |
dc.publisher | University of Michigan, Ann Arbor, Transportation Research Institute | en_US |
dc.subject.other | Rear seat | en_US |
dc.subject.other | older children | en_US |
dc.subject.other | side impact | en_US |
dc.subject.other | child head motion | en_US |
dc.subject.other | computer simulation | en_US |
dc.title | Characterizing Child Head Motions Relative to Vehicle Rear Seat Compartment in Motor Vehicle Crashes | en_US |
dc.type | Technical Report | |
dc.subject.hlbsecondlevel | Transportation | |
dc.subject.hlbtoplevel | Engineering | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/154006/1/UMTRI-2012-20.pdf | |
dc.owningcollname | Transportation Research Institute (UMTRI) |
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