Research on Side Impact Trolley Model Building based on Big Data
With the continuous changes in consumer consumption concepts,the demand for various as-pects of vehicles is also changing,which will affect various parameters of the vehicle.Nearly 200 popular models on the market were selected,including mini cars,small cars,compact cars,mid-size car,medium and large cars,whose parameters were analyzed,whose length,width,height,wheelbase,curb weight,and tire size were extracted and counted,and a side impact trolley model was established based on big data statistics.This model is used to replace the side impact trolley in the crash test.At the same time,data comparison was made with the side impact AEMDB trolley parameters used in the 21st version of C-NCAP.It was found that the trolley used in the 21st version of C-NCAP has a length of 27 mm more,a width of 150 mm less,a wheelbase of 243 mm longer,and a weight of 178 kg lighter compared to the trol-ley model.There is a difference,and the mass of the subsequent versions of C-NCAP trolley will in-crease,with an increase in front end width,making it more in line with the vehicle situation on Chinese roads.The front end height and axle load distribution of the vehicle were analyzed,making the constructed vehicle model closer to the actual situation of Chinese vehicles.Based on collision test data,the front end stiffness of the vehicle was studied,and the front end stiffness index of the vehicle model was established.The honeycomb aluminum structure and ground clearance height installed at the front end of the trolley model were designed.This research provides an experimental and theoretical basis for building a collision test bench model,which is beneficial for improving passive safety performance.
NETL
NSTL
万方数据
