| 不确定度评定方法在汽车事故再现中的应用 |
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| 引用本文： | 邓海英,莫耀祖,蒋淑霞,韩志刚.不确定度评定方法在汽车事故再现中的应用[J].中南林学院学报,2006,26(4):96-100. |
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| 作者姓名： | 邓海英 莫耀祖 蒋淑霞 韩志刚 |
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| 作者单位： | 中南林业科技大学工业学院,湖南长沙410004 |
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| 摘 要： | 介绍了不确定度理论及其评定方法，结合车辆碰撞事故的具体特点，给出了基于能量守恒的车速计算表达式．通过选择适当的输入参数作为不确定因子，分别计算各分量等效速度标准不确定度．考虑不确定度累积和传播，得到车速输出结果的合成标准不确定度和展伸不确定度，以此检验事故再现结果的准确程度．通过具体事故案例的分析计算和计算机检验，验证该方法的适用性．
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| 关 键 词： | 交通工程 不确定度评定 车辆碰撞 事故再现 能量守恒 |
| 文章编号： | 1000-2502（2006）04-0096-05 |
| 收稿时间： | 09 28 2005 12:00AM |
| 修稿时间： | 2005-09-28 |
Application of the Uncertainty Evaluation Algorithm to Automobile Accident Recurrence |
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| DENG Hai-ying, MO Yao-zu, JIANG shu-xia, HAN Zhi-gang.Application of the Uncertainty Evaluation Algorithm to Automobile Accident Recurrence[J].Journal of Central South Forestry University,2006,26(4):96-100. |
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| Authors: | DENG Hai-ying MO Yao-zu JIANG shu-xia HAN Zhi-gang |
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| Institution: | School of Industry Technology, Central South University of Forestry and Technology, Changsha 410004, Hunan, China |
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| Abstract: | This paper introduces the uncertainty theory and its evaluation algorithm, and puts forward the vehicle-velocity calculating formula based on energy conservation and the characteristics in vehicle-impacts. The standard uncertainty of each equivalent velocity is respectively evaluated by selecting a suitable factor in a vehicle-impact. Taking the accumulation and spreading of the uncertainties into consideration, the paper obtains the results of combined standard uncertainty and stretch uncertainty of the vehicle-velocity. They can be used to check the credibility of the accident reconstruction. The practicability of the method is proved through analysis- calculating and computer testing of a specific example. |
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| Keywords: | traffic engineering uncertainty evaluation vehicle impact accident recurrence energy conservation |
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