西南交通大学学报2011，Vol.46Issue(2)：259-263,5.DOI:10.3969/j.issn.0258-2724.2011.02.014
汽车碰撞模型中力学参数误差对碰撞前车速的影响
Influence of Mechanical Parameter Errors on Pre-impact Speed of Vehicles in Vehicle Collision Models
摘要
Abstract
In order to measure accurately the influence of mechanical parameter errors on the pre-impact speed of vehicles in vehicle collision models, an influence analysis method was built by matrix theory. According to common error forms, the influence of mechanical parameter errors in one model with a centroid origin and another model with a collision center origin on the pre-impact speed of a vehicle was analyzed through a vehicle collision case. The result shows that under the constraint that the relative error in pre-impact speed is not more than 3％ , the maximum margin of mechanical parameter error is ±9. 7％ in the model with a centroid origin, and ± 8.7％ in the model with a collision center origin.关键词
碰撞前车速/力学参数/误差/平均斜率Key words
pre-impact speed/ mechanical parameters/ error/ average slope分类
交通工程引用本文复制引用
张健,张鑫..汽车碰撞模型中力学参数误差对碰撞前车速的影响[J].西南交通大学学报,2011,46(2):259-263,5.基金项目
国家自然科学基金资助项目(50338030) （50338030）
吉林省教育厅科学技术研究资助项目(2007336 （）
2011141) （）
吉林市科技发展计划资助项目(20090404) （20090404）
