Vehicle Dynamics Simulation at Commercial Vehicle Development Iveco Latin America

Format:

Conference/Event

Author/Creator:

Alvarez, Alvarez, author.

Contributor:

Corte, Everton

de Almeida Lima, Vinicius

Garbin, Leandro

Conference Name:

7th International Colloquium SAE Brazil Suspensions and Road Equipment (2012-05-16 : Rio Grande Do Sul, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

This paper discusses the benefits of truck simulation for rideand handling tuning at product development. Virtual simulation canguide the conception of new vehicles to a better "firstguess" of dynamics characteristics, providing calibratedoptions to define parameters for springs, dampers and anti-rollbars, closer to the desired condition. TruckSim, from MechanicalSimulation, was the chosen software due to its user-friendlyinterface, fast modeling and post-processing that matches withchallenging product time-to-market.The scope of analysis is to evaluate/compare virtual resultsagainst subjective/objective tests on real prototypes, in order toproof software correlativity. The first step was to develop thevehicle model, using 3D CAD models information, data acquired fromreal prototypes and product specifications. The chosen vehicle wasa 9-ton 4X2 rigid truck. The next step was to model the procedures:constant speed at 60 km/h, pass through a smooth bump at 15 km/h,double lane change at 60 km/h (ISO 3888) and step steer at 45 km/h(ISO 7401). These procedures were simulated with different sets ofdampers and anti-roll bars. Comparative tests were performed inorder to evaluate simulation results with empirical procedures,both for comfort level and cornering. The outputs chosen tovalidate the simulation were: acceleration, displacements of the CGand tires reaction forces at the contact path.The analysis indicated that it is possible to reduce loops ofsuspension tuning therefore reducing time of tuning, savingprototype/test cost and development time. So far, simulatedprocedures are recommended even in conceptual phase to shiftvehicle dynamic parameters into confident initial approaches

Notes:

Vendor supplied data

Publisher Number:

2012-36-0018

Access Restriction:

Restricted for use by site license