摘要:To investigate the driving stability of tank trucks, an equivalent trammel pendulum was utilized to approximately demonstrate the
dynamic characteristics of liquid sloshing in a partially filled tank. The oscillation movement of the trammel pendulum in the tank
was described under the tank-fixed coordinate system and its motion equation under the noninertia coordinate system was derived
using a Lagrangian function. The motion of the pendulum that expresses the fluid cargo dynamic behavior and that of the solid
truck was coupled with each other by the tank. Therefore, a tank truck dynamic model was established using Newton’s first law
and the angular momentum. A typical tank truck was selected and used to study its driving stability under steering angle step test.
The study on tankers driving stability is of great importance for evaluating tankers driving safety, investing the main impact factor
aspecting tankers driving stability, and developing active/passive roll control systems for them.