| Summary: | 碩士 === 國立中正大學 === 機械工程學系 === 85 === ABSTRACTThe objectives of this project are to implement and
validate a nonlinear finite element based approach for
simulation of folded airbags and belted dummy model. The models
and computer simulation techniques built up in this study can
extend to a wide range of applications, including airbag sled
test simulations, out-of-position occupant crash studies. etc.
The projects includes two parts, The first parts concentrates on
validation of the model for airbag folding and deployment.
Various folding types, mass flow rates, vent holes, bag internal
temperatures, bag pressure models are investigated to find the
sensitivity of those parameters affected the pressure in air
bag. The second part is devoted to validate dummy model; for
each part of the dummy finite element model we examined the
material properties such as density, young''s modulus, and
poisson''s ratio and the joint load curve. Two simulation have
been done to validated dummy head and neck finite element model
that are dummy head drop test simulation and dummy neck bending
test simulation. Then the full dummy model has been used to
simulate Hyge Sled Test for belted dummy. Good correlation data
has been found by this study and the simulation techniques built
up in this project can help develop the air-bag system. (
Keywords: Folded Air Bag, Hybrid III Dummy, Computer Simulation
)
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