Tire Models for Vehicle Dynamic Simulation and Accident Reconstruction

2009 ◽  
Author(s):  
Raymond M. Brach ◽  
Matthew Brach
Keyword(s):  
Dynamic Simulation ◽  
Accident Reconstruction ◽  
Vehicle Dynamic ◽  
Vehicle Dynamic Simulation ◽  
Tire Models

scholarly journals Effect of the Longitudinal Contact Location on Vehicle Dynamics Simulation

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
N. Burgelman ◽  
Z. Li ◽  
R. Dollevoet
Keyword(s):  
Dynamic Simulation ◽  
Contact Point ◽  
Vertical Plane ◽  
Numerical Approach ◽  
Dynamics Simulation ◽  
Vehicle Dynamic ◽  
Dynamic Simulations ◽  
Vehicle Dynamic Simulation ◽  
Yaw Angle ◽  
Yaw Moment

This paper investigates the effect of the calculation of the longitudinal location of a wheel rail contact point on the wheelset’s motion in a vehicle dynamic simulation. All current vehicle dynamic software programs assume that the contact between wheel and rail takes place in the vertical plane through the wheelset’s rolling axis. However, when the yaw angle of the wheelset is nonzero, the contact point is situated up to 10 mm from that plane. This difference causes a difference in the yaw moment on the wheelset which is used in the vehicle dynamic simulation. To such an end, an existing analytical method to determine the longitudinal method was validated using a numerical approach. Then vehicle dynamic simulations with both the classic and the new contact location were performed, concluding that using a more accurate contact point location results in a smaller wheelset yaw angle in a vehicle dynamic simulation, although the effect is small.

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