Dynamic Modeling and Analysis of Tank Vehicle under Braking Situation

Considering the instability of the direction dynamics of tank vehicle system under braking maneuver, the longitudinal equivalent model of liquid was formulated with consideration of both the steady-state and the transient state dynamics of the liquid. The Matlab/simulink program of the liquid was built and was combined with the vehicle model in Trucksim software to simulate and analyze the motion of the liquid cargo centroid and its dynamical effects on the vehicle under braking maneuver. It is observed that the liquid cargo slosh motion in tank vehicles has significant influences on braking performance, pitch motion and perpendicular motion of the vehicle. The results of this paper have significant help for studies on dynamics of vehicle tankers under braking maneuver and ensurement of braking stability and security.