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《China Safety Science Journal》 2015-01
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A method for evaluating impact velocity and impact position in car-motorcycle accidents

ZOU Tie-fang;LIU Yu;LI Ping-fan;YIN Ruo-yu;School of Automobile & Mechanical Engineering,Changsha University of Science & Technology;Key Laboratory of Safety Design & Reliability Technology for Engineering Vehicle,Hunan Province;Traffic Management Research Institute of Ministry of Public Security;  
In order to evaluate the impacted velocity and the impacted position for reconstructing a carmotorcycle accident,the relationship between the impact velocity and distance between rest positions of car and the motorcycle,that of the car and the rider,and that of the motorcycle and the rider was obtained by support vector regression and simulation data by Pc-Crash,the relationship between the braking distance of the car and those three distances was obtained based on those same data and the same method. The determined coefficient is greater than 0. 993 and the residual standard deviation is less than 0. 003 in all models,which means that the regression relationship is significant. Finally,a truth value was given,results show that the impact velocity and the braking distance of the car obtained by regression relationships were close to the value obtained by the Pc-Crash,errors are all less than 2%.
【Fund】: 国家自然科学基金资助(51208065)
【CateGory Index】: U491.31
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