Featured Testing Capabilities:
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To provide a repeatable test technique for evaluating a roof-to-ground
impact in a vehicle rollover event, Exponent (in conjunction
with Ford Motor Co.) recently developed a translating and rotating
vehicle drop system. This system releases a vehicle at a pre-set
height and selectable roll, pitch, and yaw attitudes, and roll
velocity, from a fixture traveling at speeds up to 50 mph. Synchronous
release of both ends of the vehicle is provided to ensure the
proper vehicle orientation upon contact with the ground. The
system is well-suited to developmental testing of rollover occupant
protection systems and investigation of roof strength issues.
High speed cameras suspended from the test fixture provide detailed
information regarding occupant-roof-ground interactions. Such
views are not available in less-controlled rollover testing
techniques, such as dolly rollovers.
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