This paper describes a new approach and specific design procedure for more lightweight automotive Body in White (BIW) design.For a BIW structure with a target value for static stiffness, joints with high stiffness sensitivity are selected and a lightweight BIW joint design chart is produced from calculations combining topology optimization and thickness optimization.Using this chart made it possible to theoretically assign an optimum spring value to the BIW structure for the purpose of lightweight design, enabling substantial weight reduction in the base model while maintaining the same stiffness performance.Moreover, we found that by applying other load cases together with static stiffness, such as dynamic stiffness and local stiffness, and following a design procedure that utilizes their interactions, significant weight reduction can be achieved in comparison with the conventional design process that adds each product characteristic individually to a BIW structure satisfying static stiffness.
Development of Smart Design Process for Light Weight Body in White
Sae Int. J. Mater. Manf
Sae International Journal of Materials and Manufacturing
SAE 2015 World Congress & Exhibition ; 2015
Sae International Journal of Materials and Manufacturing ; 8 , 2 ; 554-562
2015-04-14
9 pages
Aufsatz (Konferenz)
Englisch
Development of smart design process for light weight body in white
Kraftfahrwesen | 2015
|Design of body-in-white light weight base on positive development process
Kraftfahrwesen | 2014
|Light Weight Design in Body-in-White Development Considering Passive Safety Requirements
British Library Conference Proceedings | 2001
|Body-in-white reinforcements for light-weight automobiles
Kraftfahrwesen | 2016
|Body-in-White Reinforcements for Light-Weight Automobiles
SAE Technical Papers | 2016
|