Volume 7, Issue 3 (9-2017)                   IJAE 2017, 7(3): 2434-2447 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Otadi A, Masih-Tehrani M, Boluhari S, Darvish-Damavandi A. Determination of the three-axle bus critical speed in the sense of rollover stability respect to the driver command and the road conditions. IJAE. 2017; 7 (3) :2434-2447
URL: http://www.iust.ac.ir/ijae/article-1-426-en.html
Abstract:   (4635 Views)

In this paper, a three-axle bus rollover threshold and the effective parameters are studied. The rollover threshold is a speed that automotive is passing without occurring rollover. The objective is a determination of the heavy vehicle rollover critical speed while turning. For this purpose, a three-axle bus is studied. The dynamic equations related to rollover is extracted, and then rollover criterion, which is LTR (Load Transfer Ratio) in this paper, is obtained. The governing equations are simulated in MATLAB software and then the effect of the parameters such as steering rate, road curvature radius, road bank slope and automotive effective parameters on the rollover critical speed is studied. Prior to the investigation of these parameters, due to validation of the simulation model in MATLAB, a three-axle bus with specific parameters values is placed under various maneuvers with different conditions in TruckSim software then results are recorded. In order to validate, these results are compared with the results which are achieved from MATLAB. After validation, the relation between effective parameters in rollover stability and vehicle speed for desire maneuvers is obtained and it is illustrated in form of function. The results of this research work can be used in road threshold speed without huge computation costs and expensive tests.

Full-Text [PDF 598 kb]   (529 Downloads)    

Add your comments about this article : Your username or Email:

© 2018 All Rights Reserved | International Journal of Automotive Engineering

Designed & Developed by : Yektaweb