254
Y. He et al.
Fig. 20.3 The process of optimization design in this study
the steering column D 2 and the deformation of front rail D 3 are considered as the
constrains.
20.3.2 Design Variables
The principal parts of crumple zone on the automotive frontal rail are selected
as design parameters, and the explosive view of thin-walled parts in front rail for
optimization design is shown in Fig. 20.4.
Fig. 20.4 The explosive view of design parts in front rail for optimization design