加油车罐内液体侧向晃动等效机械模型  

EQUIVALENT MECHANICAL MODEL OF LATERAL SWAYING OF LIQUID IN FUELING TRUCK TANKS

作　　者：张都 马保吉[1] ZHANG Du;MA Baoji(School of Electromechanical Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学机电工程学院,西安710021

出　　处：《力学与实践》2025年第1期171-178,共8页Mechanics in Engineering

摘　　要：针对某军用加油车罐内液体侧向晃动对整车侧翻的影响,以单质量椭圆轨摆等效机械模型的原理为基础,提出双质量椭圆轨摆等效机械模型,通过Lagrange方法推导双质量椭圆轨摆模型的动力学方程,并基于FLUENT数值仿真对该模型中的关键参数进行拟合,最后对比评价单质量椭圆轨摆和双质量椭圆轨摆模型的预测精度,结果表明双质量椭圆轨摆模型在各加速度激励下都表现出较高的预测精度且稳定可靠,为提高军用加油车侧倾稳定性提供了理论分析依据。In order to deal with the influence of the lateral swaying of the liquid in the tank on the rollover of a military refueling truck,a dual-mass elliptical rail pendulum equivalent mechanical model is proposed on the basis of the principle of the single-mass elliptical rail pendulum equivalent mechanical model,and the kinetic equations of the dual-mass elliptical rail pendulum model are deduced by the Lagrange method,and the key parameters in the model are fitted by numerical simulation based on FLUENT,and the results show that the dual-mass elliptical rail pendulum model exhibits high prediction accuracy and is stable and reliable under all acceleration excitations.Finally,the prediction accuracy of the single-mass elliptical rail pendulum and dualmass elliptical rail pendulum model is evaluated and compared,and the results show that the dual-mass elliptical rail pendulum model exhibits high prediction accuracy and is stable and reliable under various acceleration excitations,which provides theoretical and analytical bases for the improvement of the lateral inclination stability of military refueling trucks.

关 键 词：军用加油车 质点运动 等效机械模型 参数拟合 计算流体力学 

分 类 号：O311.1[理学—一般力学与力学基础] U461.6[理学—力学]