软式空中加油系统鞭甩现象多体动力学分析  

Multibody dynamics analysis of whipping phenomenon in probe-drogue aerial refueling system

作　　者：赵振军 谭兴宇 史晓军 张昌荣 郭鹏 ZHAO Zhen-jun;TAN Xing-yu;SHI Xiao-jun;ZHANG Chang-rong;GUO Peng(School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144,China;Institute of High Speed Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]北方工业大学机械与材料工程学院,北京100144 [2]中国空气动力研究与发展中心高速空气动力研究所,四川绵阳621000

出　　处：《振动工程学报》2024年第4期696-707,共12页Journal of Vibration Engineering

摘　　要：软管-锥套式空中加油系统的柔性结构经常发生不同程度的软管鞭甩现象,极大影响空中加油任务的安全性。基于柔性多体动力学,建立了空中加油系统动力学模型,其中,利用基于任意拉格朗日-欧拉描述方式和绝对结点坐标法的索/梁模型描述管线的大变形、大范围运动以及软管收放,并对空中加油系统受到的气动力进行建模,建立的模型能够反映加油机和受油机运动、软管和锥套的变形与气动力的耦合影响。基于建立的空中加油系统动力学模型,复现飞行状态下的软管鞭甩现象,获得了鞭甩现象的形成机理。研究表明,对接冲击下,软管平衡状态改变所形成的剪切波向后传播与反射是鞭甩现象产生的主要原因。通过多工况计算结果,分析了软管刚度、对接速度、Ma数各因素对鞭甩现象引起的软管剪切力、纵波与剪切波传播速度的影响规律,并分别分析了软管收放控制和加缓冲的受油插头两种措施对鞭甩现象振动抑制的有效性。The flexible structure in probe-drogue aerial refueling system often occurs the hose whipping phenomenon in different degrees,which greatly affects the safety of aerial refueling mission.Based on flexible multibody dynamics,a dynamic model of aerial refueling system is built.The large deformation,large-scale movement and variable length characteristic of the hose are described by beam element that based on arbitrary Lagrange-Euler description and absolute node coordinate method.The aerodynamic model on the aerial refueling system is built,which can reflect the coupling effect between the movement of the tank and the receiver,the deformation of hose and aerodynamic force.Based on the dynamics model,the hose whipping phenomenon in flight is reproduced,and the formation mechanism of the phenomenon is obtained.The research shows that the docking impact is the main cause of whipping phenomenon,which changes the equilibrium state of the hose and causes shear waves to propagate and reflect back.The results of multi-case simulation are used for analyzing the influence law of various factors,including hose stiffness,docking speed and Mach number,on the shear force,longitudinal wave and shear wave propagation speed of the hose when whipping phenomenon happened.The effectiveness of hose reeling in/out control and buffered probe for vibration suppression of hose whipping phenomenon is also analyzed,which provides an important reference for improving the safety of probe-drogue aerial refueling system.

关 键 词：多体动力学 空中加油 鞭甩现象 软管-锥套组合体 

分 类 号：O313.7[理学—一般力学与力学基础] V228.17[理学—力学]