Abstract

An analytical model is developed in this article to study the effects of liquid sloshing on dynamics of articulated vehicle carrying liquid in turning maneuver. To investigate the interaction between the fluid and the vehicle, a four-axle tractor-semitrailer tanker with 32 degrees of freedom has been used. The method of separation of variables is used to solve Laplace equation together with the wall and free surface boundary conditions for fluid sloshing. Based on the results, the effects of fluid density, fill volume of the tanker, vehicle speed, and steer angle on lateral stability of the vehicle have been studied. Simulation results showed that decrease in the fill volume and fluid density leads to decrease in the normalized dynamic normal load factor of the rear axle of the semitrailer. According to the results, the frequency of the normalized roll angle of the semitrailer is independent of vehicle velocity and steering angle.

摘要

本文建立了一个分析模型来研究液体晃动对铰接式载液车辆在转弯机动中动力学的影响。为了研究流体与车辆之间的相互作用，使用了具有 32 个自由度的四轴牵引半挂罐车。采用变量分离法求解拉普拉斯方程以及流体晃动的壁面和自由面边界条件。在此基础上，研究了流体密度、油罐车填充量、车速和转向角对车辆横向稳定性的影响。仿真结果表明，填充量和流体密度的降低会导致半挂车后桥的归一化动态法向载荷因子降低。根据结果​​，