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A study of influence of vehicle speed and front structure on pedestrian impact responses using mathematical models

Xuejun Liu (Institutionen för maskin- och fordonssystem) ; Jikuang Yang (Institutionen för maskin- och fordonskonstruktion) ; Per Lövsund (Institutionen för maskin- och fordonskonstruktion)
J. Traffic Injury Prevention (1538-9588). Vol. 3 (2002), 1, p. 31-42.
[Artikel, refereegranskad vetenskaplig]

A validated pedestrian multibody model was used to investigate the influences of impact speed and vehicle front structure on the pedestrian dynamic responses in vehicle collisions. To predict the injury risks of pedestrians at different impact speeds, the injury-related parameters concerning head, chest and lower extremity areas were calculated from mathematical simulations. Four vehicle types including large and compact passenger cars, minivans and light trucks were simulated according to their frequency of involvement in real world accidents. The influences of various vehicle front shape and compliance parameters were analyzed. Based on the results from the parametric study, the possible benefits from speed control in urban area were assessed, and a feasible speed limit was proposed to reduce the risks of pedestrian injuries. Moreover, the possible countermeasures on basis of vehicle front design to mitigate the injury severity of the pedestrians were discussed.

Nyckelord: Mathematical Modeling; Pedestrian; Impact Speed; Vehicle Front Design



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Denna post skapades 2011-11-22. Senast ändrad 2015-01-27.
CPL Pubid: 148804

 

Institutioner (Chalmers)

Institutionen för maskin- och fordonssystem (2001-2004)
Institutionen för maskin- och fordonskonstruktion (1900-2003)

Ämnesområden

Transport
Numerisk analys
Farkostteknik
Folkhälsomedicinska forskningsområden

Chalmers infrastruktur