TY  - JOUR
PY  - 2010//
TI  - Methodology for mass minimisation of a seat structure with integrated safety belts constrained by biomechanical responses on the occupant in frontal crashes
JO  - International journal of crashworthiness
A1  - Gavelin, A.
A1  - Lindquist, M.
A1  - Häggblad, H.-Å.
A1  - Oldenburg, M.
SP  - 343
EP  - 355
VL  - 15
IS  - 4
N2  - A methodology using finite element (FE) modelling and simulation with a property-based model (PBM) is presented. A generic 3-D FE model of a seat structure with a three-point seat-integrated safety belt configuration was established. A 50th percentile Hybrid III FE dummy model was used as occupant. Metamodelling techniques were used in optimisation calculations performed in two steps. Step 1: Six separate optimisations minimising biomechanical responses of the FE dummy model. Step 2: Four separate optimisations with different start values of the design variables, with the total mass of the seat structure as objective function and with the minimised biomechanical responses from Step 1 as constraint values. Six design variables were used in both Step 1 and Step 2. The four optimisations performed in Step 2 generated four different results of the total mass. Thus, different local minima were found instead of one single global minimum. The presented methodology with a PBM may be used in a concept design phase. Some issues concerning the FE model suggest further improvement.<p /> 
LA  - 
SN  - 1358-8265
UR  - http://dx.doi.org/10.1080/13588260903385550
ID  - ref1
ER  -