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Comparison study of two 3-year old child dummies: the Part 572 and the P3
Technical Paper
1981-12-0031
Published October 01, 1981 by Association for the Advancement of Automotive Medicine in United States
Sector:
Language:
English
Abstract
In a previous study the frontal crash response of the Part 572
3-year old child dummy in a child restraint system with harness was
compared with a child cadaver.
In the ECE Regulation 44 a new dummy representing a 3-year old
child is prescribed: the P3. This dummy has been compared with the
Part 572 dummy in two types of child restraint systems: a system
with harness belts and a system with a dynamic impact shield. In
addition the dummy performance was confrontated with that of the
cadaver.
The MADYMO mathematical Crash Victim Simulation program was used
in an extensive sensitivity study for detailed analysis of the
differences between both dummies. Simulations were performed with
varied dummy characteristics like mass distribution and joint range
of motions.
Differences in the performance of both dummies and the cadaver
are shown and explained by means of the results of the sensitivity
study. The kinematical effect of the vertebral column of the
cadaver is found to be simulated in a more realistic way by the P3
than by the Part 572 dummy. Some recommendations on how to improve
future child dummy design are given.