Head injury mitigation of an adult and child pedestrian in a frontal vehicle impact using response surface methodology
This work aims at achieving an optimized vehicle front-end profile for improved protection for both adult and child pedestrian groups. A seven parameter simplified vehicle front end model is used in which the Central Composite Design(CCD) is utilized to generate a Plan of Experiments for the adul...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Trans Tech Publications Ltd., Switzerland
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/40901/ http://irep.iium.edu.my/40901/ http://irep.iium.edu.my/40901/ http://irep.iium.edu.my/40901/1/K_CMAME_AMM.pdf http://irep.iium.edu.my/40901/4/40901_head%20injury%20mitigation_scopus.pdf |
| Summary: | This work aims at achieving an optimized vehicle front-end profile for improved
protection for both adult and child pedestrian groups. A seven parameter simplified vehicle front
end model is used in which the Central Composite Design(CCD) is utilized to generate a Plan of
Experiments for the adult and child pedestrian cases each. Head Injury Criteria (HIC) results from
the simulations are tabulated as the response function f(y). The Response Surface method is used to
obtain mathematical models for all cases for which optimization is carried out. A close correlation
is obtained between the predicted response and the response observed via simulation for the
optimized models. The optimized vehicle front-end profile for the adult pedestrian group is shown
to be different than that of the optimized profile for the child pedestrian. Moreover, the study shows
that both optimized profiles are not mutually applicable for safety. A simple weighted biasing
method is used to obtain responses that minimize the response for both adult as well as child
pedestrian groups mutually within a single profile. The final optimized model is shown to achieve a
safe vehicle front-end profile which equally caters for both adult and child pedestrians. |
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