非满载汽车罐车液体冲击等效机械模型  

Equivalent mechanical model for liquid sloshing in partially-filled tank vehicle

作　　者：郑雪莲[1] 李显生[1] 任园园[1] 王宇宁[1] 杨猛[1] 

机构地区：[1]吉林大学交通学院,长春130022

出　　处：《吉林大学学报（工学版）》2013年第6期1488-1493,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：'十一五'国家科技支撑计划项目(2009BAG13A04);国家自然科学基金项目(51208225)

摘　　要：针对圆柱和椭圆柱罐体内的液体冲击运动,构建了椭圆规钟摆模型,用来模拟罐体内的液体冲击运动。推导了惯性坐标系、非惯性坐标系和复杂运动坐标系下的钟摆运动方程,并对惯性坐标系下的钟摆运动方程进行了数值求解。分析了钟摆摆角、角速度、振荡频率的变化规律,获得了可用线性椭圆规钟摆近似模拟罐车罐体内液体冲击的结论。研究结果可以为汽车罐车性能分析、行驶稳定性技术和辅助驾驶技术的研发提供理论依据和实际支持。A trammel pendulum model to simulate liquid sloshing in tanks with circular and oval cross- sections is developed. Motion equations of the trammel pendulum in inertial coordinate system, non- inertial coordinate system, and in a coordinate system that moves in a complex way are derived. In the inertial coordinate system, the motion equation of trammel pendulum is numerically solved. The angular position, angular velocity and hunting frequency of the pendulum are analyzed. It is found that a linear trammel pendulum model can be used to simulate liquid sloshing in partially-filled tank vehicles. This research can provide theoretical basis and actual assistance to investigate the performance, driving stability and auxiliary driving technology of tank vehicles.

关 键 词：交通运输安全工程 汽车罐车 液体冲击 等效机械模型 拉格朗日方程 

分 类 号：U469.5[机械工程—车辆工程]