Vehicle Flexible Body and Suspension Stiffness Optimization for Multibody Vehicle Dynamic Simulation

In Formula 1, vehicle performance strongly depends on the ability to replicate on-track behavior with simulation tools, allowing precise definition of performance targets and setup adjustments. Developed in collaboration with Visa Cash App Racing Bulls F1, the current project focuses on improving a multibody dynamic model through the inclusion of detailed stiffness data for both the chassis and wheel assemblies. To achieve this, three experimental tests have been analyzed: the monocoque bending-torsional test, along with the hub-to hub and MIRA tests conducted on the complete vehicle spine. The results from these tests have been used to establish the base models, which have been refined subsequently using an optimization software to introduce spurious stiffness to compensate the models simplifications and match the experimental results.