Improving a virtualrace car performance using MSC.ADAMS-Car-MotorSports and modeFrontier

Diego Minen, Eddi Valvason (MSC Software)

The application of virtual prototyping tools to reduce product development cycle times has been the initiative of every successful auto manufacturer in the current economy.For small, high performance or race vehicle niche manufacturers, the integration of virtual prototyping tools is necessary if it wishes to survive in ultra competitive lean automotive manufacturing arena.This paper describes the approach of integrating MSC.ADAMS virtual prototyping tools for race car development, manufacturing and tuning. Virtual vehicle component and subsystems models are constructed and installed on prototype virtual vehicles, that are virtually tested to verify all functional targets and overall performance. Specific requirements for mechanical setup, aerodynamics, tires, road profiles, control systems, testrigs, are explicitly presented and discussed. Vehicle dynamics lap time quasi-static simulation is extensively being used in a number of competition applications to duplicate and predict vehicle behavior on the racetrack. The integration of such a tool with powerful closed-loop full dynamic vehicle simulation is an extremely innovative way offered by MSC for assisting race and vehicle development engineers in optimizing vehicle setup and performance: such combination overcomes the typical limitations that a quasi-static solution technique only introduces in the investigation process. Sensitivity studies, Design of Experiments (DOE) and MultiObjective Improvement Techniques are used to identify significant functional system attributes and the optimization of those attributes to meet functional requirements. Full vehicle handling, ride and NVH simulations can be performed on the Functional Digital Race Car to verify requirements and component execution.