PROFESSIONAL MOTORSPORT

SIMULATION SOFTWARE

Using the simulation model to analyse the dynamics

Printscreen of the LapSim GUI showing where the 7 poster simulation mode can be selected

The mathematical vehicle model within LapSim is capable of doing a lot more than it does in the quasi-static lap simulation.

By selecting the 7 poster mode, you are able to exploit those abilities and see if it helps you further to tune your vehicle's setup.

Vertical movement of the individual contact patches

For the road input, you can select 6 main options. Each of these options has their own details which can be adjusted.

With all of them, there is a flexibility in height, frequency, start and end point.

Combining road surface input with handling exercise

For the steering input, we chose to define a percentage of the lateral potential which is used.

100% means, the 'driver' in the model tries to turn to the full potential of the car/tire/setup. There is a flexibility in what kind of manoeuvre is made.

Length of the input trace can be varied

The input of the model is divided into 8 seconds parts which you define. You can add or delete extra 8 sec parts.

In each 8 second part, you chose what kind of road input signal you wish in combination with a handling manoeuvre.

Analysing the simulation results

Each simulation run creates results which can be analysed.

As a title we have chosen to write the root mean square of both the lateral and the vertical acceleration. You could use either of them as a kind of objective to optimize.