Abstract
Automotive chassis design in view of car weight reduction is a challenging task due to the many performance targets that must be satisfied, in particular in terms of vehicle safety. In this paper a methodology for automotive chassis design in involving optimization techniques is presented. In particular, topology, topometry and size optimizations are coupled with fem analyses and adopted in cascade for reaching an optimum chassis configuration. The methodology is applied to the design process of a rear-central engine high performance vehicle chassis. The objective of the optimization process is the chassis weight reduction, yet in fulfilment of structural performance constraints as required by Ferrari standards. The results demonstrate the general applicability of the methodology presented for obtaining the general trusses layout and thicknesses distribution of the structure. The numerical model at this stage shows a significant weight reduction when compared to the chassis of the Ferrari F458 Italia.
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Acknowledgements
We gratefully acknowledge Andrea Merulla for his valuable suggestions in setting up the numerical models, and Donato Scuccimarra and Stefano Iannetti for the thorough help given with the cad.
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Cavazzuti, M., Baldini, A., Bertocchi, E. et al. High performance automotive chassis design: a topology optimization based approach. Struct Multidisc Optim 44, 45–56 (2011). https://doi.org/10.1007/s00158-010-0578-7
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DOI: https://doi.org/10.1007/s00158-010-0578-7