Effect of Pavement Bump on Vehicle Comfort and Safety by Simulation and Experiment
The influence of pavement bump on vehicle riding comfort and safety is researched by virtual simulation and real vehicle experiment.The full car model and road model including bump are established based on ADAMS,and the virtual simulation is done.The experiment system is set up and the real vehicle experiment is carried on.The relations of body vibration acceleration and wheel load impact coefficient with velocity while it passing through the different pavement bump are studiea The results show that:The influence of trapezoidal cross-section bump on the vehicle riding comfort and safety is maximum,the circular cross-section is the second,and the parabola-circle tangent cross-section is minimum.The width of bump is proportional and the height of bump is inversely proportional to the limit-speed.On the higher limitspeed road,the wider,lower circular cross-sectional shoud be arranged.