Research on Flight Kinematics of the Parafoil System under Wind

Liang DONG; Yanjun LI; Yang CHENG; Li YU

doi:10.3969/j.issn.1009-8518.2024.05.002

Journals >Spacecraft Recovery & Remote Sensing >Volume 45 >Issue 5 >Page 13 > Article

Spacecraft Recovery & Remote Sensing
Vol. 45, Issue 5, 13 (2024)

Research on Flight Kinematics of the Parafoil System under Wind

Liang DONG¹, Yanjun LI^1,2, Yang CHENG¹, and Li YU^1,2,*

Author Affiliations

¹Key Laboratory of Aircraft Environment Control and Life Support, MIIT, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

²College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

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DOI: 10.3969/j.issn.1009-8518.2024.05.002 Cite this Article

Liang DONG, Yanjun LI, Yang CHENG, Li YU. Research on Flight Kinematics of the Parafoil System under Wind[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(5): 13 Copy Citation Text

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Fig. 1. [in Chinese]

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Fig. 2. [in Chinese]

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Fig. 6. [in Chinese]

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参数名称	数值	参数名称	数值
翼伞展长$b$/m	7.50	翼伞质量$ m_{\mathrm{s}} $/kg	5
翼伞弦长$c$/m	3.75	翼伞特征面积$ A\mathrm{_s} $/m²	28
切口高度$e$/m	0.675	载荷物质量$ m_{\mathrm{w}} $/kg	135
安装角$\mu $/（°）	9	载荷物特征面积$ A_{\mathrm{w}} $/m²	0.50
翼伞质心距系统质心距离$ L_{\mathrm{s}} $/m	7.50	载荷物质心距系统质心距离$ L\mathrm{_w} $/m	0.50

Table 1. Structural parameters of parafoil system

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(X,Y,Z)/m	(V_x,V_y,V_z)/(m·s⁻¹)	(φ,θ,ψ)/(º)
(0, 0, −1 000)	(10.50, 0, 3.50)	(0, −10, 0)

Table 2. Initial flight conditions

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速度参数	文献[24]	仿真结果	误差/%
V_x /(m·s⁻¹)	10.85	10.54	2.86
V_y /(m·s⁻¹)	5.39	5.18	3.90
V_z /(m·s⁻¹)	3.24	3.34	3.09
K	3.74	3.52	5.88

Table 3. Comparisons of system speed

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特征参数	无风	顺风	逆风	侧风
V_wind/(m·s⁻¹)	0	4.24	−4.24	4.24
V_xy/(m·s⁻¹)	10.98	15.35	6.74	11.88
V_z/(m·s⁻¹)	3.67	3.74	3.67	3.77
K	2.99	4.11	1.84	3.15
φ/(°)	0	0	0	−0.01
θ/(°)	−11.79	−12.38	−10.85	−12.40
ψ/(°)	0	0	0	−0.60

Table 4. Stabilized motion characteristics of the system under different wind directions

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高度/km	顺风			逆风			侧风
高度/km	V_xy/(m·s⁻¹)	V_z/(m·s⁻¹)	K	V_xy/(m·s⁻¹)	V_z/(m·s⁻¹)	K	V_xy/(m·s⁻¹)	V_z/(m·s⁻¹)	K
1	15.35	3.74	4.11	6.74	3.67	1.84	11.88	3.77	3.15
2	16.42	3.95	4.15	6.76	3.82	1.77	12.51	3.93	3.18
3	17.36	4.18	4.15	7.18	4.05	1.77	13.19	4.16	3.17
4	18.29	4.44	4.12	7.73	4.29	1.80	13.90	4.41	3.15

Table 5. Steady flight kinematics of the system at different altitudes

Liang DONG, Yanjun LI, Yang CHENG, Li YU. Research on Flight Kinematics of the Parafoil System under Wind[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(5): 13

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