Document Detail

A comparison of volunteers and dummy upper torso kinematics with and without shoulder belt slack in a low speed side/pre-roll environment.
MedLine Citation:
PMID:  16854710     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The objective of this study was to compare the occupant and dummy kinematics in a low-speed lateral environment with and without shoulder belt slack. METHODS: A buck of a small European car was mounted on a side impact sled. The parameters evaluated were pulses, sitting location, and belt slack. A total of 24 tests were carried out. Three 50th-percentile male volunteers and one Hybrid III 50th-percentile male were tested. The pulses consisted of Pulse 1:+/- 0.7 g's pulse and Pulse 2: a -0.9 g pulse to simulate low-speed pre-roll/side events. Both pulses had a duration of 500 msec. RESULTS: The peak lateral head excursion was higher in the far-side occupants than in the near-side occupants. Furthermore, for the far-side volunteers, lateral head displacements were lower in the no-slack condition than in the slack condition, at 388 +/- 64 mm and 455 +/- 84 mm respectively for Pulse 1 and at 138 +/- 2 mm and 207 +/- 70 mm for Pulse 2. The timing required to reach peak lateral displacement was higher in Pulse 1 than in Pulse 2. In comparison to the volunteers, the Hybrid III dummy lateral motion was lower. The peak lateral displacement in Pulse 1 was 231 mm with slack and 194 mm without and 98 mm and 107 mm for Pulse 2, respectively. CONCLUSIONS: The results obtained in this study indicate that removing seatbelt slack would be more beneficial for far-sided occupants than near-sided. They also point to the lack of biofidelity of the Hybrid III dummy in low g lateral pulses.
Chantal Parenteau
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Traffic injury prevention     Volume:  7     ISSN:  1538-9588     ISO Abbreviation:  Traffic Inj Prev     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-07-20     Completed Date:  2006-11-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  101144385     Medline TA:  Traffic Inj Prev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  155-63     Citation Subset:  IM    
Delphi Corporation, Troy, Michigan, USA.
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MeSH Terms
Accidents, Traffic* / prevention & control
Automobile Driving
Models, Theoretical
Seat Belts*
Time Factors
Wounds and Injuries / etiology,  prevention & control

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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