Analysis and optimization of a racecar chassis

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The purpose of this thesis work was to analyze and optimize the performance of vehicle dynamics and the forces acting on chassis and suspension on a Bentley racecar replica with the chassis and suspension constructed by Robert Ajdén. From a 3D CAD model of the car, coordinates was imported and a representative model in ADAMS/Car was built. The car was tested in different types of simulations, both static and dynamic for the front and rear suspension individually and dynamic full vehicle simulations when the car corners in high lateral acceleration, braking test and hitting a road obstacle. The results for the front and rear suspension static analyzes were validated by hand calculations based on the 3D CAD model to ensure a correct simulation and ADAMS model construction. With the evaluated results from the original car in mind, a new model was developed within the modification limitations set by the car manufacturer. The results for the modified racecar was ability to manage higher lateral acceleration when cornering, minimized bumpsteer effect and decreased amount of force acting on the suspension parts. On the modified racecar a Design of Experiment, DOE test were performed to analyze how the adjustable parameters of the car influences the behavior when cornering. Coordi...