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The Effect of Changes in Seating Position and Door Velocity Time History on Side Impact Dummy Response
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Abstract
Variability in dummy response causes problems when developing a vehicle structure or a restraint system for side impact crashworthiness.
A study has been carried out with the objective of quantifying the response variation experienced by the EuroSID, BioSID and USSID dummies, due to dummy positioning and the door velocity time history.
MADYMO 3D was used to generate a door trim profile from a 4-door saloon vehicle, and the dummy data was imported from the MADYMO dummy database. A velocity profile from the intruding door was taken from a European ECE 95 side impact crash test, and the three dummy models were then correlated to side impact (M-SIS)(1) sled test results.
Design of Experiment techniques were used to develop a three dimensional positioning matrix, which enabled information to be obtained efficiently, but with a minimum number of simulations.
For the velocity profile study, each peak and trough was modified in turn to allow the effects of a change to be considered independently, and for the subsequent effect on dummy response to be assessed.
The results from the three dummy types in this modeling project, demonstrate the dummy sensitivity to positioning and changes in the intruding door velocity profile.
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Citation
Allan-Stubbs, B., "The Effect of Changes in Seating Position and Door Velocity Time History on Side Impact Dummy Response," SAE Technical Paper 980911, 1998, https://doi.org/10.4271/980911.Also In
References
- Payne A R Mohasci R Allan-Stubbs B The effects of Variability in Vehicle Structure and Occupant Position on Side Impact Dummy Response using the MIRA M-SIS Side Impact Technique SAE 1997 970571
- Allan-Stubbs B The Effects of Variability of the EuroSID Seating Position, using MADYMO 3D and Experimental Design Techniques MADYMO European Users Conference 1997