Study On Trajectory Model And Simulation Of Vehicle Rollover Accident Reconstruction

Road traffic accidents have become one of global effects of pollution currently. More than 3,200 deaths are involved and enormous wealth is lost in the vehicle accident. Social all circles have more and more focus on serious traffic accident problem.Vehicle rollover accident accounting for less proportion is an important accident forms in all accidents. A great many rollover accidents take place in all nations going with serious casualties and enormous wealth loss. Because of the complexity and the dissimilarity, compared with other accidents, the vehicle rollover accident research has become a branch of road traffic accidents, an important buildup in the single vehicle accident research. The accurate and systemic research for roll accidents has not been carried through in China.Based on the domestic and foreign reconstruction theory and software system of vehicle rollover accident, the following research work has been done combined the disposal of China road traffic accident and analysis on traffic accident reconstruction theory and system integration by research team of Jilin University.The cause(s) and characteristics of vehicle rollover accident are analyzed , the general theory and method are given on reconstruction analysis of this kind of accident.The'three phases'theory of vehicle rollover reconstruction analysis is put forward,which are Pre-Trip Phrase,Trip Phrase and Post-Trip Phrase, adopting relevant theory models,experiential formula and trajectory model in reconstruction analysis.On the basis of certain assumptions,several dynamics and kinematics models describing the vehicle rollover process are established,and the functions between CVS and impact time,impact height or other parameters are gained.Then the...