【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。更多还原

【Abstract】 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.更多还原