Citation

Zhang W, Wei T, Xu C, Xu S, Chen Q, Wang X. China Saf. Sci. J. 2019; 29(2): 178-183.

Copyright

(Copyright © 2019, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2019.02.029

PMID

unavailable

Abstract

To reduce the risk of rollover and ensure the safety of the tank truck on curved road, a model was built for calculating the minimum rollover critical speed of the tank truck on curved road. Firstly, the dynamic theory was used to calculate the height of the vehicle's gravity center as a function of the speed, the radius of curve and the road slope condition. Secondly, the critical rollover speed of the tank truck was calculated by using the principle of moment balance. Last, the risk of rollover accident was judged by comparing the current speed with the minimum critical rollover speed of the vehicle, and an early warning method was put forward. After that, an example was calculated and analyzed. The results show that the critical rollover speed of the vehicle is negatively correlated with the driving speed of the vehicle while driving on the curved road, that the road foundation conditions such as the super-high slope, the longitudinal slope of the road and the turning radius of the curved road have a great influence on the safety of the liquid tank truck running on the curved road section, and that the early warning method is helpful in guaranteeing the safety of the tank truck and the driver. © 2019 China Safety Science Journal. All rights reserved.

Language: zh