[Show abstract][Hide abstract] ABSTRACT: Improvements in structural components design are of- ten achieved on a trial-and-error basis guided by the designer know-how. Despite the designer experience must remain a fundamental aspect in design, such an approach is likely to allow only marginal product enhancements. A different turn of mind that could boost structural design is needed and could be given by struc- tural optimization methods linked with finite elements analyses. These methods are here briefly introduced, and some applications are presented and discussed with the aim of showing their potential. A particular focus is given to weight reduction in automotive chassis de- sign applications following the experience matured at MilleChili Lab.
Problèmes Inverses, Contrôle et Optimisation de Formes 2012, Paris, France; 04/2012
[Show abstract][Hide abstract] ABSTRACT: Weight reduction is a major issue for carmaker companies due the need to comply with the emission regulations without reducing the vehicle safety. A classic trial-and-error approach to design in the automotive industry is becoming inadequate and new means are needed to enhance the design process. A major improvement on the end product can be achieved by adopting suitable optimization techniques from the early design stage. In the present paper the problem of automotive chassis design in view of weight reduction is tackled by means of topology optimization. The design methodology proposed is applied twice: at first addressing a chassis for spider vehicles, then for coupe ́ vehicles. The two chassis, together with some intermediate result are discussed and compared. The methodology has been proven to be successful in finding innovative and efficient layouts for automotive chassis.
World Congress on Engineering 2011 - The 2011 International Conference of Mechanical Engineering, London, UK; 07/2011
[Show abstract][Hide abstract] 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 vehi- cle safety. In this paper a methodology for automotive chas- sis design in involving optimization techniques is presented. In particular, topology, topometry and size optimizations are coupled with F E M analyses and adopted in cascade for reaching an optimum chassis configuration. The methodol- ogy is applied to the design process of a rear-central engine high performance vehicle chassis. The objective of the op- timization process is the chassis weight reduction, yet in fulfilment of structural performance constraints as required by Ferrari standards. The results demonstrate the general ap- plicability of the methodology presented for obtaining the general trusses layout and thicknesses distribution of the structure. The numerical model at this stage shows a sig- nificant weight reduction when compared to the chassis of the Ferrari F458 Italia.
Structural and Multidisciplinary Optimization 01/2011; 44(1):45-56. · 1.70 Impact Factor