The Use of a Multi-Accelerometric Method in Automotive Safety Tests
Technical Paper
916113
Sector:
Language:
English
Abstract
Following the specific work of evaluation of methods for
computing angular acceleration from the measurement of linear
accelerations, the results of which are set out in a previous
publication, two concrete applications were implemented with
complementary objectives: Evaluate the sensitivity of angular
acceleration measurement for an impact with airbag as compared to a
direct impact on the steering wheel; and Estimate the precision of
the measurements taken by studying the 3-D kinematics of a steering
column (with dummy) by comparison with a vehicle without a
conventional film study.
In both cases, the results obtained have shed light on aspects
which could not have been detected any other way (influence of the
airbag on head data other than the HIC, dummy/steering column
interaction). This study also provided an opportunity of evaluating
the Nx1 computation method developed in the laboratory. This method
allows full use to be made of the measurement potential provided by
accelerometer mounts APR 89/II and APR 89/III, composed of 5 or 6
accelerometric triaxes.