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[1] Tao Jin, , Sun Qinglin, et al. Dynamic modeling of a parafoil system considering flap deflection [J]. Journal of Southeast University (English Edition), 2017, 33 (4): 416-425. [doi:10.3969/j.issn.1003-7985.2017.04.005]
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Dynamic modeling of a parafoil system considering flap deflection()
考虑襟翼偏转的翼伞系统动态建模
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
33
Issue:
2017 4
Page:
416-425
Research Field:
Other Disciplines
Publishing date:
2017-12-30

Info

Title:
Dynamic modeling of a parafoil system considering flap deflection
考虑襟翼偏转的翼伞系统动态建模
Author(s):
Tao Jin1, 2, 3, Sun Qinglin1, 2, Chen Zengqiang1, 2, He Yingping4
1Tianjin Key Laboratory of Intelligent Robotics Technology, Nankai University, Tianjin 300350, China
2College of Computer and Control Engineering, Nankai University, Tianjin 300350, China
3Department of Electrical Engineering and Automation, Aalto University, Espoo 02150, Finland
4Aerospace Life-Support Industries Ltd., Aviation Industry Corporation of China, Xiangyang 441003, China
陶金1, 2, 3, 孙青林1, 2, 陈增强1, 2, 贺应平4
1南开大学天津市智能机器人技术重点实验室, 天津 300350; 2南开大学计算机与控制工程学院, 天津 300350; 3Department of Electrical Engineering and Automation, Aalto University, Espoo 02150, Finland; 4中航工业集团航宇救生装备有限公司, 襄阳 441003
Keywords:
parafoil system;  dynamic modeling and simulation;  flight characteristic;  airdrop experiment;  flap deflection
翼伞系统;  动态建模与仿真;  飞行特性;  空投实验;  襟翼偏转
PACS:
V19
DOI:
10.3969/j.issn.1003-7985.2017.04.005
Abstract:
In order to better study the dynamic characteristics and the control strategy of parafoil systems, considering the effect of flap deflection as the control mechanism and regarding the parafoil and the payload as a rigid body, a six degrees-of-freedom(DOF)dynamic model of a parafoil system including three DOF for translational motion and three DOF for rotational motion, is established according to the Kirchhoff motion equation. Since the flexible winged parafoil system flying at low altitude is more susceptible to winds, the motion characteristics of the parafoil system with and without winds are simulated and analyzed. Furthermore, the airdrop test is used to further verify the model. The comparison results show that the simulation trajectory roughly overlaps with the actual flight track. The horizontal velocity of the simulation model is in good accordance with the airdrop test, with a deviation less than 0.5 m/s, while its simulated vertical velocity fluctuates slightly under the influence of the wind, and shows a similar trend to the airdrop test. It is concluded that the established model can well describe the characteristics of the parafoil system.
为更好地研究翼伞系统的动力学特性和控制策略, 将襟翼偏转作为翼伞控制机制, 伞体和回收物视为刚性连接, 根据克西霍夫运动方程建立了翼伞系统六自由度模型, 包括随质心的三自由度平动和绕质心的三自由度转动.由于翼伞系统由柔性结构的冲压型翼伞提供升力, 且飞行高度较低, 容易受到环境中风场的影响, 因此对有风和无风环境下翼伞系统的基本运动特性进行了仿真分析, 并利用空投实验对所建立模型进一步验证.仿真和空投实验对比结果表明, 翼伞系统仿真轨迹和空投实际轨迹基本上能够吻合, 其水平仿真速度与空投实验误差小于0.5 m/s, 垂直仿真速度在风场作用下呈现小幅波动, 与空投实验结果一致, 说明该模型能够有效地描述翼伞系统的运动性能.

References:

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Memo

Memo:
Biographies: Tao Jin(1986—), male, doctor; Sun Qinglin(corresponding author), male, doctor, professor, sunql@nankai.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61273138, 61573197), the National Key Technology R & D Program(No.2015BAK06B04), the Key Fund of Tianjin(No.14JCZDJC39300), the Key Technologies R & D Program of Tianjin(No.14ZCZDSF00022).
Citation: Tao Jin, Sun Qinglin, Chen Zengqiang, et al. Dynamic modeling of a parafoil system considering flap deflection[J].Journal of Southeast University(English Edition), 2017, 33(4):416-425.DOI:10.3969/j.issn.1003-7985.2017.04.005.
Last Update: 2017-12-20