Research On The Handleability And Stability Of Truck On Sharp Curve And Steep Slope Sections Of Two-lane Roads By Simulation

Two-lane mountain roads have a large number,difference linear,lots of the sharp curve and steep slope sections,while the truck due to the relatively poor performance affected by the sharp curve and steep slope sections is large,thus traffic accidents caused sharp curve and steep slope sections of two-lane mountain road multiple.The current safety evaluation for mountain bends of multiple with the traffic accident rate and velocity continuity method,although these methods are simple and practical,but there are also problems that can not be ignored.While the truck’s handleability and stability directly reflect the influence of road conditions on the car,indirectly reflects the sharp curve and steep slope sections’ safety features,the vehicle handleability and stability of sharp curve and steep slope sections safety evaluation is an evaluation method for the better.The two-lane mountain road bends a single sharp curve and steep slope section as the research object,through computer simulation technology,the parameters in the simulation of truck handleability and stability gets on the road,to evaluate the safety of two-lane roads bends from the sharp curve and steep slope sections of automobile safety performance perspective.The analysis software as a platform to TruckSim truck dynamics,a truck dynamics simulation model,a closed-loop driver simulation model,a 3D road simulation model,determined the evaluation index of handleability and stability of truck(including yaw angle rate,lateral offset,tire vertical load,body roll angle,lateral acceleration,etc.)the sharp curve and steep slope sections composed of different radius,high,longitudinal slope,curve length(a total of 99 combinations)through simulation experiments.Based on the analysis on the experimental results,determine the influence of various road conditions on the operation stability of truck,evaluate the safety of the sharp turns and steep slopes sections,according to the status of the two-lane roads safety in China put forward the common and economical security measures.This paper has a guiding role in the implementation of the comprehensive renovation of dangerous bends and steep slopes and other sections of the two lane highway.