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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References
Bendsøe MP, Kikuchi N (1988) Generating optimal topologies in structural design using homogenization method. Comput Methods Appl Mech Eng 71:197–224
Bendsøe MP, Sigmund O (2004) Topology optimization: theory, methods and applications. Springer, Berlin
Chang JW, Lee YS (2008) Topology optimization of compressor bracket. Journal of Mechanical Science and Technology 22:1668–1676
Chiandussi G, Gaviglio I, Ibba A (2004) Topology optimisation of an automotive component without final volume constraint specification. Adv Eng Softw 35:609–617
Duddeck F (2008) Multidisciplinary optimization of car bodies. Struct Multidisc Optim 35:375–389
Kilian S, Zander U, Talke FE (2003) Suspension modeling and optimization using finite element analysis. Tribol Int 36:317–324
Pedersen CBW (2003) Topology optimization design of crushed 2d-frames for desired energy absorption history. Struct Multidisc Optim 25:368–382
Pedersen CBW (2004) Crashworthiness design of transient frame structures using topology optimization. Comput Methods Appl Mech Eng 193:653–678
Sigmund O (2001) A 99 topology optimization code written in matlab. Struct Multidisc Optim 21:120–127
Sobieszczanski-Sobieski J, Kodiyalam S, Yang RY (2001) Optimization of a car body under constraints of noise, vibration, and hasrhness (nvh), and crash. Struct Multidisc Optim 22:295–306
Wang L, Basu PK, Leiva JP (2004) Automobile body reinforcement by finite element optimization. Finite Elem Anal Des 40:879–893
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