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Repeatable Dynamic Rollover Test Procedure with Controlled Roof Impact
Technical Paper
2001-01-0476
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Rollover crash and accident studies identify significant roof-to-ground impacts adjacent to the vehicle occupant as a potential cause of severe injuries. It is not possible with existing dynamic rollover test methods to specifically repeat or recreate a particular roof-to-ground impact in a controlled fashion. Variations associated with tire-to-dolly, tire/wheel-to-ground, and vehicle-to-ground interactions early in current rollover test methods tend to produce unpredictable and unrepeatable roof-to-ground impacts later in the test.
A new test device now enables researchers to bypass the uncertainty of these first ground interactions by beginning each test with the desired roof-to-ground impact conditions as a test input. The new rollover test method releases a rotating vehicle onto the ground from the back of a moving semi-trailer. The roll, pitch and yaw angles, translational and vertical velocities, and roll velocity of the vehicle for the first roof-to-ground interaction is repeatable from test to test. However, the subsequent vehicle dynamics are not repeatable as the vehicle rolls to rest. In addition to the onboard and off-board vehicle documentation, unique, close camera coverage is provided from the rear of the trailer.
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Citation
Cooper, E., Moffatt, E., Curzon, A., Smyth, B. et al., "Repeatable Dynamic Rollover Test Procedure with Controlled Roof Impact," SAE Technical Paper 2001-01-0476, 2001, https://doi.org/10.4271/2001-01-0476.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
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