软式空中加油对接约束力不确定性分析

张国斌; 张青斌; 丰志伟; 陈青全; 杨涛

doi:10.7527/S1000-6893.2020.24517

航空学报 >

2021 , Vol. 42 >Issue 9: 224517 - 224517

DOI: https://doi.org/10.7527/S1000-6893.2020.24517

固体力学与飞行器总体设计

软式空中加油对接约束力不确定性分析

张国斌 ,
张青斌 ,
丰志伟 ,
陈青全 ,
杨涛

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国防科技大学空天科学学院, 长沙 410073

收稿日期: 2020-07-09

修回日期: 2020-10-14

网络出版日期: 2020-12-25

基金资助

国家自然科学基金（11772353）

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Uncertainty analysis on binding force of hose-drogue aerial refueling

ZHANG Guobin ,
ZHANG Qingbin ,
FENG Zhiwei ,
CHEN Qingquan ,
YANG Tao

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College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received date: 2020-07-09

Revised date: 2020-10-14

Online published: 2020-12-25

Supported by

National Natural Science Foundation of China (11772353)

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摘要

软式空中加油过程中锥套和受油管连接处的最大约束力，可造成锥套和受油管的脱离以及受油管的断裂，甚至引发安全事故。为了研究输油过程中软管锥套组合体的动力学特性，利用ALE-ANCF输油管道模型和多体建模方法，建立了加油系统刚-柔-液耦合的多体动力学模型；为了获取参数不确定条件下对接约束力的期望范围，采用融合多项式混沌方法和动力学模型的不确定性快速分析方法，得到了不同高度下飞行速度、输油软管长度和两机相对运动速度存在不确定性时的对接约束力期望范围。数值仿真结果表明，当受油机和加油机存在相对运动时，受油管在特定截面处的最大压力、剪力和弯矩的期望值将会分别大幅提高50%、272%和772%。

关键词： 空中加油; 多体系统动力学; 绝对节点坐标法; 甩鞭现象; 多项式混沌

本文引用格式

张国斌 , 张青斌 , 丰志伟 , 陈青全 , 杨涛 . 软式空中加油对接约束力不确定性分析[J]. 航空学报, 2021 , 42(9) : 224517 -224517 . DOI: 10.7527/S1000-6893.2020.24517

Abstract

In the process of hose-drogue aerial refueling, the maximum binding force between the drogue and probe can cause detachment of the docking point and fracture of the hose, and even lead to safety accidents. In this paper, to study the dynamic characteristics of the hose-drogue assembly in the oil transportation process, a multi-body dynamic model of the rigid-flexible-liquid coupling of the refueling system is established by using the ALE-ANCF fluid transportation pipeline model as well as the multi-body modeling method. To quantify the expected range of the binding force under the condition of parameter uncertainty, a fast uncertainty analysis method that combines the polynomial chaos method and the dynamic model is proposed. The expected range of docking constraint force is obtained when the flight speed, length of hose, and relative velocity of two aircraft are uncertain at different altitudes. Numerical simulation results show that when there is relative motion between the receiver and the tanker, the expected maximum pressure, shear force, and bending moment at the specific section of the probe greatly increase by 50%, 272%, and 772%, respectively.

Key words： aerial refueling; multi-body system dynamics; absolute nodal coordinate formulation (ANCF); hose whipping phenomenon; polynomial chaos

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