MADYMO USED FOR COMPUTER AIDED DESIGN OF A DYNAMIC CHILD RESTRAINT SEAT

A child restraint system based on a new concept was computer designed and optimized. The system is based on a moving impact shield, which is horizontal during normal use to provide good forward visibility, but during a frontal collision the shield pivots upward to restrict the forward motion of the child's head and thorax. After the design of the actuating mechanism of the dynamic shield was sufficiently developed, the performance of the restraint system was adapted to the TNO-P3, three-year-old child dummy. The optimization of the design was carried out by varying the geometry, padding, and inertial properties, using the MADYMO crash victim simulation program. Sled tests were performed to validate and refine the design of the system.

• Supplemental Notes:
  • Published in HS-030 722, "International IRCOBI Conference on the Biomechanics of Impacts (5th) Proceedings," Amsterdam, 1980, pp 107-16. Conference held in Birmingham, England, 9-11 September 1980. See also HS-030 723 and HS-030 724. Research sponsored by Romer-Britax, Ulm, West Germany.
• Corporate Authors:

  Research Institute for Road Vehicles, TNO, Nethlds

  Schoemakerstraat 97
  2208 Delft,   Netherlands 
• Authors:
  • STALNAKER, R L
  • Maltha, J
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Biophysics; Child restraint systems; Computer aided design; Crash injury research; Design; Frontal crashes; Optimization; Performance; Simulation; Sled tests
• Old TRIS Terms: Optimum design
• Subject Areas: Design; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00372667
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-030 731
• Files: HSL, USDOT
• Created Date: May 31 1983 12:00AM