Currently, methods to improve the stability of liquid tank trucks mainly focus on
mitigating the sloshing of liquid inside the tank. This is usually achieved by
adding various additional devices such as baffles, bulkheads, and flexible
materials. However, existing methods are relatively singular and passive in
addressing the liquid sloshing response under complex driving conditions of tank
trucks, and they do not fully consider the coupling effects of the entire
vehicle’s dynamics model on tank sloshing. This article proposes an intelligent
control strategy that uses threshold values as a control criterion to move the
baffle in the direction opposite to the liquid sloshing. For comparison, a
corresponding condition with stationary baffles was set as a control, and the
effects of movable baffles and their porosity on the roll stability of tank
trucks were studied. To further investigate the coupling interaction between
liquid sloshing and the vehicle during actual driving, this article realized a
bidirectional coupling response between the liquid sloshing numerical model and
the vehicle’s eight-degree-of-freedom dynamic numerical model. Through model
validation, the accuracy of both the liquid sloshing model and the vehicle’s
eight-degree-of-freedom model was confirmed. The study found that movable
baffles can more effectively suppress liquid sloshing compared to stationary
baffles. By controlling the movement of the baffles, the impact of liquid
sloshing on vehicle behavior can be reduced, thus improving vehicle stability.
This article provides a new, customizable intelligent control approach for
complex driving conditions.
