INFLUENCE OF VELOCITY ON THE ROLL STABILITY OF TRACTOR - SEMI TRAILER

Abstract

Today, tractor - semi trailer is the most popular transport vehicle in the
world due to its benefits. However, accidents related to this vehicle usually are
serious and usually linked to the loss stability of tractor - semi trailer. The main
leading factors to rollover accidents usually are the abrupt steering with high
velocity by the driver. This paper surveys the effect of velocity on the stability of
tractors - semi trailers. Tractors - semi trailer is modelled and simulated using
Matlab - Simulink software on the time domain in the cornering manuever. The
results show that rollover of the trailer - semi trailer occurred when the forward
velocity at the front and rear axle of the tractor reached 62.97km/h and
54.62km/h. and the velocity at the rear axle of semi trailer is 57.91km/h.