基于汽车动力学的振动减速带设置间距研究  

Vibrating Deceleration Facilities' Space StudyBased on Vehicle Dynamics

作　　者：许源[1] 朱顺应[1] 彭武雄[1] 刘兵[1] 孙琴梅[1] 管菊香[1] 

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《交通科技》2008年第1期101-103,共3页Transportation Science & Technology

摘　　要：运用汽车动力学,考虑车辆在长大纵坡下坡路段加速性能,假设减速带减速效果已知,以车速不超过道路设计车速为前提,进行振动减速带设置间距的研究,得出了在不同的设计车速、不同纵坡坡度下,振动减速带的设置间距。分析显示,车速越高,振动减速带设置间距与纵坡的关系越明显。并以武汉长江隧道为例,比较了普通路面、防滑路面及设置减速带后汽车行驶速度曲线,结果表明,减速带可以有效地降低车速。最后,对研究进行了讨论。This paper studied the space between the facilities based on vehicle dynamics, considering the acceleration characteristic of vehicle on long longitudinal slope, preconceiving that operating speed is below design speed, and elicited the space at different design speed and different grade. Analysis shows that along with speed becoming higher, the relationship between space and grade is more obvious. Taking an example for Wuhan Changjiang River Tunnel, it compared the speed curve of vehicle running at different condition of such as ordinary surface, skid-resistant surface and speed reduce facilities. Results show that deceleration facilities could reduce speed effectively. At last, this paper discussed the deficiency in the study.

关 键 词：振动减速带 汽车动力学 设置间距 

分 类 号：U461.1[机械工程—车辆工程] U455[交通运输工程—载运工具运用工程]