Resurrection Method Of Right-angle Side Collision Velocity Of Car Based On Simulation Deformation Analysis

In recent years,China’s economy has entered a period of high-quality development,and the number of motor vehicles has increased sharply,making the road traffic safety problem increasingly prominent.The occurrence of traffic accidents is directly related to the safety of people’s life and property,as well as the harmony and stability of the whole society.Due to the complexity and diversity of traffic accidents,the traffic police comrades need to consume a lot of manpower when dealing with these accidents,and the consumption time is long,which often leads to traffic congestion,affects normal traffic behavior,and even occurs when both parties in the accident hold their own In the case of words,This makes it difficult to deal with accidents.When dealing with accidents,the main focus is on how to correctly estimate the instantaneous speed of the accident.The traditional accident reproduction method is greatly affected by external factors and cannot accurately calculate the collision speed.The body deformation after the collision is an objective existence and is not easily caused by external factors.Therefore,it is of great practical significance to use the important factor of body deformation to solve the collision speed.Aiming at the right Angle side accident pattern of automobile,using the finite element simulation software,build the vehicle model and set up the car collision simulation experiments,collecting car simulation deformation and impact velocity data,obtained by MATLAB simulation model,the relation between the deformation and collision velocity sensitivity to model after data analysis,find the applicable scope of the model.Fitting of the deformation and the relationship between the speed model combined with two-dimensional eccentric collision dynamics model,set up the car right side impact instantaneous speed calculation model,finally,in view of the actual road traffic accident cases,respectively,using the speed calculation model with PC-an instant Crash simulation software to calculate vehicle speed.The results of the two methods are compared and analyzed,and the simulation and actual deformation characteristics of the accident vehicle are compared and analyzed.The results show that the velocity calculation method of PC-Crash software has good consistency with that of right-angle side impact velocity calculation method.The finite element deformation of the vehicle is consistent with that of the real vehicle.