不同截面形状罐体液罐车液体质心特性  

THE CHARACTERISTICS OF THE CENTER OF MASS OF THE LIQUID IN THE TANKER WITH DIFFERENT CROSS SECTION SHAPES

作　　者：何烈云[1] 李国军[2] 周妍[1] HE Lieyun;LI Guojun;ZHOU Yan(Department of Transportation Management and Engineering,Zhejiang Police Collage,Hangzhou 310053,China;Department of Public Foundation,Zhejiang Police College,Hangzhou 310053,China)

机构地区：[1]浙江警察学院交通管理工程系,杭州310053 [2]浙江警察学院公共基础部,杭州310053

出　　处：《力学与实践》2022年第2期328-336,共9页Mechanics in Engineering

基　　金：浙江省软科学资助项目(2020C35G2321127)。

摘　　要：为获取液罐车作转向行驶时罐内液体质心变化特性,以常见的圆形、椭圆形、多段弧形和方形四种截面形状罐体为研究对象,将液罐车转向行驶时罐内液体视为准静态变化过程,利用均质平面质心计算原理,构建了不同工况条件下的液体质心计算模型,采用MATLAB数值仿真方法,得到了质心坐标及质心轨迹图像,对比分析了不同截面形状罐体的图像规律及车辆侧向稳定特性,研究结论可为液罐车设计及行驶稳定性研究提供依据。In order to investigate the motion of the center of mass of liquid in a turning tank truck, tanks with four common section shapes, i.e., circular, oval, multi-section arc and square, are considered in this research.The liquid in the tank is assumed to be quasi-static during the turning. The liquid center of mass is calculated through the integration of the center of mass for each homogeneous section plane. Using MATLAB, the centroid coordinates and centroid trajectory images are obtained. The lateral stability characteristics of tank trucks with different shape of cross-section is analyzed. The research results provide guidelines for the design and driving stability of liquid tank truck.

关 键 词：液罐车 质心 准静态 截面 充装率 侧向加速度 

分 类 号：U461.6[机械工程—车辆工程]