The Influence of Pelvic-belt Angle on Wheelchair Occupant Injury Risk: a simulation study
The angle of the pelvic‐belt connection to the vehicle floor is an important consideration, but this has not been previously evaluated for wheelchair users. This paper reports on the use of Mathematical Dynamic Models (MADYMO) multibody modelling to evaluate the influence of pelvic‐belt angle on pelvic‐belt forces and wheelchair occupant kinematics and loading in a standardized frontal impact. A model of the 50th percentile male Hybrid III dummy seated in a manual wheelchair and subjected to a 20g frontal impact pulse was used as the baseline. Results show the horizontal component of the pelvic‐belt contact force with the abdomen/pelvis remains broadly constant as the pelvic‐belt angle increased from 30° to 75°, but there was an almost threefold increase in the vertical component of the pelvic‐belt contact force. The abdomen loading from the pelvic‐belt decreased dramatically for belt angles in excess of about 45°. The shoulder‐belt force increased with increasing pelvic‐belt angle. These results indicate that a pelvic‐belt angle in excess of about 45° is necessary to prevent significant abdominal loading, but pelvic‐belt angles above 60°result in unnecessary increased occupant loading.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/22353151
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Supplemental Notes:
- Abstract reprinted with permission of IRCOBI (International Research Council on the Biomechanics of Injury).
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Corporate Authors:
International Research Council on Biomechanics of Injury (IRCOBI)
Winkelriedstrasse 27
Zurich, Switzerland CH-8006 -
Authors:
- McDonnell, Gavin
- D'Souza, Raymond
- Bertocci, Gina
- Tiernan, John
- Simms, Ciaran
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Conference:
- 2012 IRCOBI Conference
- Location: Dublin , Ireland
- Date: 2012-9-12 to 2012-9-14
- Publication Date: 2012
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: pp 194-204
- Monograph Title: 2012 IRCOBI Conference Proceedings
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Serial:
- IRCOBI Conference Proceedings
- Publisher: International Research Council on Biomechanics of Injury (IRCOBI)
- ISSN: 2235-3151
- Serial URL: http://www.ircobi.org/proceedings.php
Subject/Index Terms
- TRT Terms: Crash injuries; Crash victim simulation; Dummies; Loads; Pelvis; Restraint systems; Seat belts; Wheelchairs
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I84: Personal Injuries; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 01484710
- Record Type: Publication
- Report/Paper Numbers: IRC-12-27
- Files: TRIS
- Created Date: Jun 24 2013 10:57AM