Research and Implementation of Beam Section Optimization for Vehicle Body Lightweighting.

For optimizing the sections of thin-walled beams in vehicle-body concept design phase, algorithms for determining section geometric properties and the method to control section shape by scale vector are proposed. The section assist-design module and section optimization module are developed and incorporated into the independently developed vehicle-body concept design system VCD_ICAE. On these bases and adopting PSO optimization algorithm, an optimization of the thickness and shape of beam sections in multi-constraints condition is conducted, realizing the lightweighting of vehicle-body. [ABSTRACT FROM AUTHOR]