Measurment of Submarining on Hybrid Iii 50Md & 5Md Percentile Crash Test Dummies
Technical Paper
946040
Sector:
Language:
English
Abstract
Instrumentation for the study of submarining on the Hybrid II
test dummy has already been described in a previous paper. The
instrumentation consisted basically of two 2D force transducers
installed in the dummy's pelvis. This system has been
evaluated, improved and installed on the 50th percentile Hybrid III
dummy. The aim of this paper is to describe the general concept
arrived at through this study, namely:
-Detection of movement of the lap-belt via a simple system
installed in the iliac wing of the pelvis.
-Measurement of the amplitude of submarining via a 2D force
transducer installed back from the iliac crests.
This work, carried out in conjunction with FTSS, required
changes on the levels of the spinal/lumbar column connection and
measurement of thoracic deflection. The assembly was tested in
various impact configurations (subsystem and sled configuration
tests). The corresponding results show that the system detects
submarining well and does not affect the overall response of the
instrumented dummy by comparison with a standard dummy.
The new system detecting seat-belt slippage was also installed
on the 5th percentile Hybrid III dummy. Sled tests gave reliable
recordings of the detection of submarining.
From the results available, it seems that the two versions
presented (50th and 5th percentile) enable improved study of
submarining and accordingly the optimization of occupant
restraining systems
Authors
- Jérôme Uriot - Institut de Recherches Biomécaniques et Accidentologiques
- Martin Page - Institut de Recherches Biomécaniques et Accidentologiques
- Claude Tarrière - Renault S.A.
- Farid Bendjellal - Renault S.A.
- Frédéric Loiseleux - Institut de Recherches Anatomo-Chirurgicales et de Bioméca
- Mick Saloum - First Technology Safety Systems
- Philippe Fournier - P.S.A. Peugeot Citroën