Multidisciplinary design optimization of a zero-emission vehicle chassis considering crashworthiness and hydroformability

This research used multidisciplinary design optimization to optimize the ladder frame chassis of a zero-emission vehicle by simultaneously considering three objective functions: (a) chassis mass, (b) deceleration during collision, and (c) manufacturability of a part in hydroforming. Additionally, design constraints were placed on torsional and bending stiffness, maximum von-Mises stress, and the natural frequency in torsion and bending. …