不確定度評定方法在汽車事故再現中的應用

不確定度評定方法在汽車事故再現中的應用
鄧海英 莫耀祖 蔣淑霞 韓志剛中南林業科技大學工業學院,湖南長沙410004摘　要:介紹了不確定度理論及其評定方法，結合車輛碰撞事故的具體特點，給出了基于能量守恒的車速計算表達式．通過選擇適當的輸入參數作為不確定因子，分別計算各分量等效速度標準不確定度．考慮不確定度累積和傳播，得到車速輸出結果的合成標準不確定度和展伸不確定度，以此檢驗事故再現結果的準確程度．通過具體事故案例的分析計算和計算機檢驗，驗證該方法的適用性．[著者文摘]

關鍵詞:交通工程 不確定度評定 車輛碰撞 事故再現 能量守恒
分類號:　U491.31[免標]文獻標識碼：A文章編號：1000-2502（2006）04-0096-05欄目信息：交通運輸
相關文獻:主題相關

Application of the Uncertainty Evaluation Algorithm to Automobile Accident RecurrenceDENG Hai-ying, MO Yao-zu, JIANG shu-xia, HAN Zhi-gang School of Industry Technology, Central South University of Forestry and Technology, Changsha 410004, Hunan, ChinaAbstract: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.[著者文摘]

Key words:traffic engineering; uncertainty evaluation ; vehicle impact ; accident recurrence ; energy conservation