重装空投着陆缓冲稳定性分析

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (15) : 122-126.

论文

重装空投着陆缓冲稳定性分析

唐晓慧1,2，钱林方1，汤建华1，徐飞3，万里3

作者信息 +

Stability Analysis of Soft Landing System for Heavy Cargo Airdrop

TANG Xiao-hui1,2，QIAN Lin-fang1，Tang Jian-hua1,XU Fei3，WAN Li3

Author information +

文章历史 +

摘要

将重装空投软着陆过程分解为两个阶段分别考虑:气囊压缩缓冲阶段以及货台与地面接触碰撞阶段。在第一阶段，基于热力学方程及能量守恒原理，建立了气囊的缓冲模型，分析其缓冲特性，并得到货台与地面接触前的速度及姿态；在第二阶段，基于刚体动力学和接触动力学的方法，建立了货台与地面的碰撞模型，通过对具有水平速度的货台与地面的接触碰撞分析，得到货台碰撞后的速度和转角。通过典型算例分析计算了重装空投的着陆稳定性，并与试验结果进行了对比。

Abstract

The process of soft landing divided into two parts, the process of airbag attenuation and the process of contact between the cargo and ground. In the first process, based on the energy conservation principle and thermodynamic equations, an analytical model of airbag attenuation system was established, then the attenuation properties could be got, and the cargo’s velocity and rotation angle before contact could be computed; in the second process, based on the theory of rigid-body dynamics and contact dynamics, an contact model between ground and the cargo with level initial velocity was built, the cargo’s velocity and rotation angle after impact could be got, then the stability of soft landing could be judged.

导出引用

唐晓慧1,2，钱林方1，汤建华1，徐飞3，万里3. 重装空投着陆缓冲稳定性分析[J]. 振动与冲击, 2015, 34(15): 122-126

TANG Xiao-hui1,2，QIAN Lin-fang1，Tang Jian-hua1,XU Fei3，WAN Li3. Stability Analysis of Soft Landing System for Heavy Cargo Airdrop[J]. Journal of Vibration and Shock, 2015, 34(15): 122-126

参考文献

[1] 温金鹏，李斌，谭德伟等. 考虑织布弹性的软着陆气囊缓冲特性研究[J].振动与冲击.2010,29(2),79-83. Wen, JP;Li, B;Yang, ZC TI. Study on cushioning characteristics of soft landing airbag with elastic fabric[J].
[2] 李建阳，王红岩，芮强，等.自充气式气囊缓冲特性试验研究[J].振动与冲击,2014,33(4):119-123.
LI Jian-yang,WANG Hong-yan,RUI Qiang,et al.Tests for cushioning characteristics of a self-inflating airbag[J]. Journal of Vibration and Shock,2014,33(4):119-123.
[3] J. T. Wang, O. J. Nefske, A New CLA3D Airbag Inflation Model[J], SAE paper 880654,1988.
[4] Ch.Glocker, F.Pfeiffer, Miinchen. Complementarity problems in multibody systems with planar friction[J], Archive of Applied Mechanics, 1993, 63(7), 452-463.
[5] 张延教，高等动力学[M]，南京理工大学出版社，2003.
Zhang Yanjiao, Advanced Dynamics[M], Nanjing University of Science and Technology, 2003.
[6] 彼得•艾伯哈特，胡斌，现代接触动力学[M]，东南大学出版社，2003.
Peter Eberhard, Hubin . Advanced Contact Dynamics[M], Southeast University Press, 2003.