Soft Landing Impact Simulation of Lunar Lander

doi:10.3780/j.issn.1000-758X.2011.05.010

Chinese Space Science and Technology ›› 2011, Vol. 31 ›› Issue (5): 70-75.doi: 10.3780/j.issn.1000-758X.2011.05.010

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Soft Landing Impact Simulation of Lunar Lander

LIN Qing, NIE Hong, CHEN Jin-Bao, WAN Jun-Lin, LI Li-Chun

（Nanjing University of Aeronautics and Astronautics, Nanjing 210016）

Received:2010-11-19 Revised:2011-01-19 Published:2011-10-25 Online:2011-10-25

Abstract

Abstract: To improve the analysis accuracy of soft landing impact response for lunar lander, a method based on nonlinear transient dynamic analysis was presented. In view of the influence of the flexibility of lunar lander and regolith on impact response of payloads, the flexible models for the lander and regolith were built by MSC.PATRAN based on a certain lunar lander. Then, the transient dynamics software MSC.DYTRAN was used to simulate the payloads impact response of soft landing. It shows that the simulation is consistent with experimental results. The proposed method analyzes the landing impact response for several payloads accurately and simulates the actual landing conditions of lunar lander realistically.

Key words: Flexible model, Transient dynamics, Soft landing, Simulation, Lunar lander

LIN Qing, NIE Hong, CHEN Jin-Bao, WAN Jun-Lin, LI Li-Chun. Soft Landing Impact Simulation of Lunar Lander[J]. Chinese Space Science and Technology, 2011, 31(5): 70-75.

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Soft Landing Impact Simulation of Lunar Lander

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