Integration of a Torsional Stiffness Model into an Existing Heavy Truck Vehicle Dynamics Model 2010-01-0099
Torsional stiffness properties were developed for both a 53-foot box trailer and a 28-foot flatbed control trailer based on experimental measurements. In order to study the effect of torsional stiffness on the dynamics of a heavy truck vehicle dynamics computer model, static maneuvers were conducted comparing different torsional stiffness values to the original rigid vehicle model. Stiffness properties were first developed for a truck tractor model. It was found that the incorporation of a torsional stiffness model had only a minor effect on the overall tractor response for steady-state maneuvers up to 0.4 g lateral acceleration.
The effect of torsional stiffness was also studied for the trailer portion of the existing model. By again simulating the vehicle response using varying values of torsional stiffness and comparing these responses with the original rigid model, it was found that the overall effect on vehicle response was minimal for both static and dynamic maneuvers up to 0.5 g lateral acceleration.
Citation: Mcnaull, P., Salaani, M., Guenther, D., Grygier, P. et al., "Integration of a Torsional Stiffness Model into an Existing Heavy Truck Vehicle Dynamics Model," SAE Int. J. Passeng. Cars – Mech. Syst. 3(1):175-186, 2010, https://doi.org/10.4271/2010-01-0099. Download Citation
Patrick J. Mcnaull, Mohamed Kamel Salaani, Dennis A. Guenther, Paul A. Grygier, Gary J. Heydinger
Ohio State Univ., Transportation Research Center Inc., National Hwy Traffic Safety Admin
SAE 2010 World Congress & Exhibition
SAE International Journal of Passenger Cars - Mechanical Systems-V119-6, Tire and Wheel Technology and Vehicle Dynamics and Handling, 2010-SP-2261, SAE International Journal of Passenger Cars - Mechanical Systems-V119-6EJ