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A Human- 3D Mathematical Model for Simulation of Car-Pedestrian Impacts

Jikuang Yang (Institutionen för maskin- och fordonskonstruktion) ; Per Lövsund (Institutionen för maskin- och fordonskonstruktion) ; Claue Cavallero ; Jean Bonnoit
Traffic Injury Prevention (Journal of Crash Prevention and Injury Control) (1538-9588). Vol. 2 (2000), 2, p. 131-149.
[Artikel, refereegranskad vetenskaplig]

A 3D mathematical model of the human body was developed to simulate responses of pedestrians in car impacts. The model consists of fifteen body segments connected by fourteen joints, including two human-like knee joints and two breakable-leg segments. The anthro- pometrical data for the model were generated by theGEBODprogram, and characteristics of the body segments and the joints were defined based on available biomechanical data. The validity of the model was evaluated against full-scale impact tests with pedestrian substitutes and an experimental car in terms of the kinematics of the pedestrian substitute, bumper impact forces, accelerations of the body segments, and failure description from anatomical investigations of the pedestrian substitutes. The sensitivity of the model to input variables was studied at impact speeds of 15 and 40 km/h with the following car-front parameters: bumper height, bumper stiffness, bumper- lead distance, height of hood edge, and hood-edge stiffness. The validated model demonstrated its capability in simulations of car±pedestrian impacts for the assessment of responses of pedestrians, prediction of risks of pedestrian injuries and for the development of safety countermeasures.

Nyckelord: Human mathematical model, pedestrian protection, car, impact response



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Denna post skapades 2011-11-20. Senast ändrad 2015-01-27.
CPL Pubid: 148710

 

Institutioner (Chalmers)

Institutionen för maskin- och fordonskonstruktion (1900-2003)

Ämnesområden

Livsvetenskaper
Transport
Numerisk analys
Beräkningsfysik
Farkostteknik

Chalmers infrastruktur