Analysis And Research Of Automobile And Two-wheel Vehicle Collision Accident Based On Trace

With the rapid development of China's automobile industry and urban transportation system,the number of car ownership and private cars has increased significantly from 2014 to 2018 compared with the past.Convenient and mobile two-wheelers have become the first for residents to travel short distances.One option is that the number of two-wheelers in Jingzhou is very large,coupled with the lack of self-protection awareness and measures of two-wheeler drivers.Therefore,accidents between cars and two-wheelers occur frequently.This type of vehicle collision accident is a characteristic of China Type of traffic accident.It has brought huge casualties and economic losses to the entire society.Civil disputes caused by traffic accidents are also increasing.Not only does it pose serious challenges to the enforcement of law enforcement agencies,but also requires professional analysis and identification of traffic accidents Sex also raises higher and higher requirements.Therefore,analyzing and appraising the accident,while restoring the process of the traffic accident,and clarifying the responsibilities of both sides of the accident,is a very important way to build a harmonious society.The research direction of traffic accidents is mostly based on how to calculate the vehicle speed.The content of the research is too simple for the resolution of the entire case.In actual work,people often have more confusion and needs for understanding the process of the accident,which has been ignored by previous researchers.In view of the importance of the analysis and identification of vehicle accident traces,it has a unique advantage in solving most traffic accidents,but the content of analysis and identification of traces is generally general,and there is no scientific conclusion.Recognition and experience of traces to solve actual cases,it is a non-quantitative calculation analysis method,which causes the analysis results to rely too much on the actual experience of the appraiser to judge,making it difficult for non-professionals to understand the process of accidents through trace analysis And reasons,in view of this,this article will systematically explore how to use the scientific language to accumulate the experience of the vehicle trace identification accumulated by the forensic experts over the years,using scientific language to explain the method and process of accident trace identification and analysis,and abandon the experience judgment Combined with the establishment of software simulation model,the accident process is simulated,and the results are compared with the vehicle accident traces,in order to be fair and scientifically summarize the method of handling traffic accidents from the perspective of trace identification.This article first studies the basic theory of traffic accident trace identification,starting from the application of the basic Newton's three laws,conservation of momentum and conservation of energy in traffic accidents,taking car and two-wheeler collision accidents as the research object,defining traffic accident collisions In the three stages that occur,the collision process is described,the concept of effective collision speed is introduced,the degree of vehicle deformation and the effective collision speed are linked,three types of collision types are defined,the characteristics of the collision type are explained,and the elastic recovery coefficient is introduced Concept,toquantitatively express the three collision forms,expounded the brake friction coefficients,in which the influence of the change of braking force coefficient on the change of road tire tracks,the conditions affecting the braking force factors,and discussed various types of impact collision calculations The coefficient of friction force lays the foundation for theoretical calculation for the subsequent analysis and identification of the traces of accidents.Secondly,the key methods of traffic accident trace identification are studied,and the traffic accident traces are classified and summarized,including the formation mechanism and characteristics of car body traces,the analysis process and the identification method,the road surface trace system is introduced,and combined with the typical pictures of the accident scene It shows that the process and method that should be mastered during the investigation of the entire accident trace are determined,and the basis of the trace data is laid for the analysis of software simulation.Finally,the PC-crash software is selected,and the simulation software is used to construct a simulation model and an accident environment model of the collision between the car and the two-wheeled vehicle.The method was studied,the scene information contained in the hand-drawn accident scene map was drawn into an electronic version of the graphics,and the simulation analysis was combined with the actual case.By continuously modifying the relevant parameters,the process of accident collision was scientifically restored,the simulation results and traces The results obtained from the identification and analysis results are high,which proves the correctness and reliability of the software simulation.The research results are aimed at highlighting the importance of trace identification in modern traffic accident analysis,combined with the introduction of computer simulation technology,using trace identification data as basic parameters,referring to domestic and foreign research content,and relying on the experience of judicial appraisers to deal with accidents in the past trace identification.In order to try to systematically study the method to solve practical problems,it provides an analysis method combining trace identification and software simulation,so that law enforcement departments and non-professionals can more intuitively understand the process and causes of accidents,and are interested Ordinary people engaged in the professional identification of traffic accidents provide a theoretical reference.