Citation

Chen Y, Zheng X, Zhang Z, Ahmadian M. Int. J. Veh. Perform. 2022; 8(2/3): 271-295.

Copyright

(Copyright © 2022, Inderscience Publishers)

DOI

10.1504/IJVP.2022.122046

PMID

unavailable

Abstract

The effect of partial loading on the wheel tip-up and rollover stability of 28-ft A-double tractor-trailers is studied using TruckSim®. The model parameters are determined based on measurements and test data, and the model is validated using track data. Four loading conditions are considered: empty, side-loaded, front-loaded, and fully-loaded. The simulation results of a 150-ft J-turn manoeuvre indicate that front- and side-loading of the rear trailer leads to the largest load transfer ratio (LTR) and tip-up, compared with loaded and unloaded conditions. Beyond the trailers' dynamics, unloaded and side-loaded conditions result in lower dolly tip-up speeds, compared with the other load conditions. The side-loaded condition yields the lowest critical rollover speed (CRS). The fully loaded trailer is more prone to rollover than the front-loaded and unloaded cases. The study also suggests that for loaded and partially-loaded cases the static stability factor (SSF) can provide a good first-order estimate of CRS.

Keywords: off-centred loading; 28-ft A-double; commercial vehicle; roll stability; rollover; tip-up; J-turn; LTR; load transfer ratio; CRS; critical rollover speed; SSF; static stability factor.

Language: en