MATHEMATICAL MODEL FOR INVESTIGATING COMBINED SEATBACK-HEAD RESTRAINT PERFORMANCE DURING REAR-END IMPACT
A mathematical model of the seated driver subjected to A rear-end impact is developed using a lumped parameter model which, inter alia, allows for the investigation of the effect of an elastic-perfectly plastic head restraint device on the overall motion of the head and torso. The most satisfactory seatback-head restraint combination is found to be a seatback having a high rotational stiffness with A viscous damping coefficient of near 'critical' value combined with an energy absorbing head restraint having A plastic collapse load of approximately 890 n. The model confirms recent results which indicate that tensing of neck musculature prior to impact reduces injury potential.(a) /TRRL/
-
Corporate Authors:
Taylor & Francis
4 Park Square, Milton Park
Abingdon, United Kingdom OX14 4RN -
Authors:
- Fox, J C
- Williams, J F
- Publication Date: 1976-10
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: 264 p.
-
Serial:
- Ergonomics Abstracts
- Volume: 8
- Issue Number: 4
- Publisher: Taylor & Francis
Subject/Index Terms
- TRT Terms: Deployable head restraints; Head; Headrests; Injuries; Mathematical models; Muscles; Neck; Rear end crashes; Restraint systems
- ITRD Terms: 2040: Cervical vertebrae; 1399: Head restraint; 2163: Injury; 6473: Mathematical model; 2032: Muscle; 1466: Passive safety system; 1620: Rear end collision
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00156475
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Report/Paper Numbers: Analytic
- Files: ITRD, TRIS
- Created Date: Oct 13 1977 12:00AM