- Company: Polestar
- Design challenge: Design simulation acquired an even greater importance as the best combination of the Front-to-Rear weight, aerodynamics and brake distribution in less time (track testing was limited to three days) became the new target.
- ESTECO Software Solution: modeFRONTIER
Improvements in weight, aero-dynamics and brake distribution led to a lap time reduction ranging from 0.19 to 0.50 seconds
Polestar Racing has been using modeFRONTIER in different steps of the development of the “Polestar Performance” concept. The software is used both as a tool for driving the aerodynamics, multibody and structural analysis process, and to improve the real lap time simulation. In 2012 Touring Car Team Association (TTA) championship, Polestar Racing won the first prize for the Drivers, Teams and Manufacturers categories with their innovative car design.
"modeFRONTIER capability to extend simulation analysis made possible the interrelated parameter study."
The 2012 season of the Racing Elite League run by TTA introduced new rules leaving little room for engineering design changes. Therefore, the Polestar Racing vehicle model had to be modified without considering the chassis design parameters, which were previously the core of the optimization analysis. Design simulation acquired an even greater importance as the best combination of the Front-to-Rear weight, aerodynamics and brake distribution in less time (track testing was limited to three days) became the new target.
The simulation tools used - Adams.Car by MSC Software and the Lap Time Simulation (LTS) in-house code - were easily integrated into the modeFRONTIER optimization workflow, to optimally tune the Front-toRear weight distribution parameters. “Considering the limited amount of time we have had for testing in this championship” – says Per Blomberg, Manager of Chassis Development – “this kind of interrelated parameters study would not have been possible without the capability of modeFRONTIER to extend the simulation analysis ”. Improvements in weight, aerodynamics and brake distribution led to a lap time reduction ranging from 0.19 to 0.50 seconds.
In only a few hours of simulation time modeFRONTIER piloted the evaluation of parameter combinations that might have never been tested, leading to enhanced configurations. The optimization framework initially set up for the TTA championship can be promptly adapted to the typical circuits of the STCC championship. Repeating the study considering different conditions is now “something that we can do even overnight on a weekend race , once we have completed the trial session and gathered some data about the track model”. Similarly, it is rather easy to run a new optimization cycle even with modified conditions, such as the driver, tires, and so forth: once the relevant parameters in the LTS vehicle model (e.g. engine or track model) are set, modeFRONTIER performs a robust sensitivity verification of the output (lap time) in relation to different vehicle parameters.
Polestar was founded in 1996 in collaboration with Volvo in order to drive forward Volvo’s investment in racing. Since then, Polestar has competed with the 850, S40, S60 and now the C30 Volvo models. The company’s core business is focused on development and competition in racing. In addition to racing, the company’s activities are organised into two further business areas, Performance and Services. www.polestar.com