Test programs at Exponent's TEC are successful due to the integrated
support of the following laboratories and their skilled personnel:
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Mechanical fabrication and vehicle prep
The TEC mechanical shop facilities and equipment provide
capabilities from machining and sheet metal work to heavy
structural welding and cutting for the fabrication of
prototype components and specialized test hardware. Exponent’s
TEC has several multi-bay automotive garages equipped
with hydraulic frame and chassis lifts, a tire changer,
engine tune-up equipment, and a full complement of tools
to prepare and modify vehicles for testing. |
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Instrumentation and data processing
The TEC has a variety of data acquisition systems,
some of which have been developed in-house. Data collection
for crash testing is accomplished with onboard digital
data acquisition systems designed for and qualified to
100-g shock levels. Exponent provides instrumentation
and acquisition equipment for up to 192 channels per test,
and user-selectable acquisition frequencies up to 80 kHz.
The TEC data processing center produces draft data plots
of all recorded data within 30 minutes of test completion.
Test data is processed in conformance with SAE J211 specifications,
and can be analyzed with a variety of data processing
functions, including injury criteria. |
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Test dummy certification and prep
Exponent maintains an environmentally-controlled dummy
laboratory that is equipped for maintenance and calibration
of dummies used in dynamic testing. Exponent’s dummy
inventory includes an assortment of Hybrid III dummies
of various adult and child sizes, as well as Hybrid II
dummies and side impact dummies. |
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Photography and photometric analysis
The photographic laboratory at Exponent’s TEC
is equipped with various video, still, and motion picture
equipment. High-speed 16-mm film and video at rates up
to 11,000 frames per second (fps) are used to record crash
test or other dynamic events. A NAC motion analyzer with
MOVIAS software and Exponent post-processing software
is used to analyze dummy and vehicle motions recorded
on film. |
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